DatabaseOracle Class Reference

Inheritance diagram for DatabaseOracle:

Collaboration diagram for DatabaseOracle:

Public Member Functions
	__construct (array $p)
	__destruct ()
	Run a few simple sanity checks and close dangling connections.
	addIdentifierQuotes ( $s)
	Quotes an identifier using backticks or "double quotes" depending on the database type.
	addQuotes ( $s)
	Adds quotes and backslashes.
	aggregateValue ( $valuedata, $valuename='value')
	Return aggregated value function call.
	bitAnd ( $fieldLeft, $fieldRight)
	bitNot ( $field)
	bitOr ( $fieldLeft, $fieldRight)
	buildGroupConcatField ( $delim, $table, $field, $conds='', $join_conds=[])
	Build a GROUP_CONCAT or equivalent statement for a query.
	buildStringCast ( $field)
	buildSubstring ( $input, $startPosition, $length=null)
	dataSeek ( $res, $row)
	decodeBlob ( $b)
	Some DBMSs return a special placeholder object representing blob fields in result objects.
	delete ( $table, $conds, $fname=__METHOD__)
	DELETE query wrapper.
	dropTable ( $tableName, $fName=__METHOD__)
	Delete a table.
	duplicateTableStructure ( $oldName, $newName, $temporary=false, $fname=__METHOD__)
	Creates a new table with structure copied from existing table.
	encodeBlob ( $b)
	Some DBMSs have a special format for inserting into blob fields, they don't allow simple quoted strings to be inserted.
	execFlags ()
	fetchObject ( $res)
	fetchRow ( $res)
	fieldInfo ( $table, $field)
	fieldName ( $stmt, $n)
	Get a field name in a result object.
	freeResult ( $res)
	Frees resources associated with the LOB descriptor.
	getInfinity ()
	Find out when 'infinity' is.
	getServer ()
	Get the server hostname or IP address.
	getServerVersion ()
	getSoftwareLink ()
	getType ()
	Get the type of the DBMS, as it appears in $wgDBtype.
	implicitGroupby ()
	Returns true if this database does an implicit sort when doing GROUP BY.
	implicitOrderby ()
	Returns true if this database does an implicit order by when the column has an index For example: SELECT page_title FROM page LIMIT 1.
	indexExists ( $table, $index, $fname=__METHOD__)
	Query whether a given index exists.
	indexInfo ( $table, $index, $fname=__METHOD__)
	Returns information about an index If errors are explicitly ignored, returns NULL on failure.
	indexUnique ( $table, $index, $fname=__METHOD__)
	insert ( $table, $a, $fname=__METHOD__, $options=[])
	INSERT wrapper, inserts an array into a table.
	insertId ()
	Get the inserted value of an auto-increment row.
	isQuotedIdentifier ( $s)
	Returns if the given identifier looks quoted or not according to the database convention for quoting identifiers .
	lastErrno ()
	Get the last error number.
	lastError ()
	Get a description of the last error.
	limitResult ( $sql, $limit, $offset=false)
	Construct a LIMIT query with optional offset.
	listTables ( $prefix=null, $fname=__METHOD__)
	List all tables on the database.
	makeSelectOptions ( $options)
	Returns an optional USE INDEX clause to go after the table, and a string to go at the end of the query.
	nativeInsertSelect ( $destTable, $srcTable, $varMap, $conds, $fname=__METHOD__, $insertOptions=[], $selectOptions=[], $selectJoinConds=[])
	Native server-side implementation of insertSelect() for situations where we don't want to select everything into memory.
	numFields ( $res)
	numRows ( $res)
	queryIgnore ( $sql, $fname='')
	removeIdentifierQuotes ( $s)
	selectRow ( $table, $vars, $conds, $fname=__METHOD__, $options=[], $join_conds=[])
	Single row SELECT wrapper.
	sourceStream ( $fp, callable $lineCallback=null, callable $resultCallback=null, $fname=__METHOD__, callable $inputCallback=null)
	Read and execute commands from an open file handle.
	strencode ( $s)
	Wrapper for addslashes()
	tableExists ( $table, $fname=__METHOD__)
	Query whether a given table exists (in the given schema, or the default mw one if not given)
	tableName ( $name, $format='quoted')
	Format a table name ready for use in constructing an SQL query.
	tableNameInternal ( $name)
	textFieldSize ( $table, $field)
	Returns the size of a text field, or -1 for "unlimited".
	timestamp ( $ts=0)
	Convert a timestamp in one of the formats accepted by wfTimestamp() to the format used for inserting into timestamp fields in this DBMS.
	unionQueries ( $sqls, $all)
	Construct a UNION query This is used for providing overload point for other DB abstractions not compatible with the MySQL syntax.
	update ( $table, $values, $conds, $fname=__METHOD__, $options=[])
	upsert ( $table, array $rows, array $uniqueIndexes, array $set, $fname=__METHOD__)
	INSERT ON DUPLICATE KEY UPDATE wrapper, upserts an array into a table.
	wasDeadlock ()
	Determines if the last failure was due to a deadlock.
Public Member Functions inherited from Wikimedia\Rdbms\Database
	__clone ()
	Make sure that copies do not share the same client binding handle.
	__sleep ()
	Called by serialize.
	__toString ()
	affectedRows ()
	Get the number of rows affected by the last write query.
	anyChar ()
	Returns a token for buildLike() that denotes a '_' to be used in a LIKE query.
	anyString ()
	Returns a token for buildLike() that denotes a '' to be used in a LIKE query.
	assertNoOpenTransactions ()
	Assert that all explicit transactions or atomic sections have been closed.
	begin ( $fname=__METHOD__, $mode=self::TRANSACTION_EXPLICIT)
	Begin a transaction.
	bufferResults ( $buffer=null)
	Turns buffering of SQL result sets on (true) or off (false).
	buildConcat ( $stringList)
	Build a concatenation list to feed into a SQL query.
	buildIntegerCast ( $field)
	buildLike ()
	LIKE statement wrapper, receives a variable-length argument list with parts of pattern to match containing either string literals that will be escaped or tokens returned by anyChar() or anyString().
	buildSelectSubquery ( $table, $vars, $conds='', $fname=__METHOD__, $options=[], $join_conds=[])
	Equivalent to IDatabase::selectSQLText() except wraps the result in Subqyery.
	cancelAtomic ( $fname=__METHOD__, AtomicSectionIdentifier $sectionId=null)
	Cancel an atomic section of SQL statements.
	clearFlag ( $flag, $remember=self::REMEMBER_NOTHING)
	Clear a flag for this connection.
	close ()
	Close the database connection.
	commit ( $fname=__METHOD__, $flush=self::FLUSHING_ONE)
	Commits a transaction previously started using begin().
	conditional ( $cond, $trueVal, $falseVal)
	Returns an SQL expression for a simple conditional.
	connectionErrorLogger ( $errno, $errstr)
	Error handler for logging errors during database connection This method should not be used outside of Database classes.
	databasesAreIndependent ()
	Returns true if DBs are assumed to be on potentially different servers.
	dbSchema ( $schema=null)
	Get/set the db schema.
	deadlockLoop ()
	Perform a deadlock-prone transaction.
	decodeExpiry ( $expiry, $format=TS_MW)
	Decode an expiry time into a DBMS independent format.
	deleteJoin ( $delTable, $joinTable, $delVar, $joinVar, $conds, $fname=__METHOD__)
	DELETE where the condition is a join.
	doAtomicSection ( $fname, callable $callback, $cancelable=self::ATOMIC_NOT_CANCELABLE)
	Perform an atomic section of reversable SQL statements from a callback.
	doneWrites ()
	Returns true if the connection may have been used for write queries.
	encodeExpiry ( $expiry)
	Encode an expiry time into the DBMS dependent format.
	endAtomic ( $fname=__METHOD__)
	Ends an atomic section of SQL statements.
	estimateRowCount ( $table, $var=' *', $conds='', $fname=__METHOD__, $options=[], $join_conds=[])
	Estimate the number of rows in dataset.
	explicitTrxActive ()
	fieldExists ( $table, $field, $fname=__METHOD__)
	Determines whether a field exists in a table.
	flushSnapshot ( $fname=__METHOD__)
	Commit any transaction but error out if writes or callbacks are pending.
	getDBname ()
	Get the current DB name.
	getDomainID ()
	Return the currently selected domain ID.
	getFlag ( $flag)
	Returns a boolean whether the flag $flag is set for this connection.
	getLag ()
	Get the amount of replication lag for this database server.
	getLBInfo ( $name=null)
	Get properties passed down from the server info array of the load balancer.
	getMasterPos ()
	Get the position of this master.
	getProperty ( $name)
	getReplicaPos ()
	Get the replication position of this replica DB.
	getScopedLockAndFlush ( $lockKey, $fname, $timeout)
	Acquire a named lock, flush any transaction, and return an RAII style unlocker object.
	getServerInfo ()
	A string describing the current software version, and possibly other details in a user-friendly way.
	getServerUptime ()
	Determines how long the server has been up.
	getSessionLagStatus ()
	Get the replica DB lag when the current transaction started or a general lag estimate if not transaction is active.
	getWikiID ()
	Alias for getDomainID()
	ignoreIndexClause ( $index)
	IGNORE INDEX clause.
	indexUnique ( $table, $index)
	Determines if a given index is unique.
	initConnection ()
	Initialize the connection to the database over the wire (or to local files)
	insertSelect ( $destTable, $srcTable, $varMap, $conds, $fname=__METHOD__, $insertOptions=[], $selectOptions=[], $selectJoinConds=[])
	INSERT SELECT wrapper.
	isOpen ()
	Is a connection to the database open?
	isReadOnly ()
	lastDoneWrites ()
	Returns the last time the connection may have been used for write queries.
	lastQuery ()
	Return the last query that went through IDatabase::query()
	listViews ( $prefix=null, $fname=__METHOD__)
	Lists all the VIEWs in the database.
	lock ( $lockName, $method, $timeout=5)
	Acquire a named lock.
	lockForUpdate ( $table, $conds='', $fname=__METHOD__, $options=[], $join_conds=[])
	Lock all rows meeting the given conditions/options FOR UPDATE.
	lockIsFree ( $lockName, $method)
	Check to see if a named lock is not locked by any thread (non-blocking)
	lockTables (array $read, array $write, $method)
	Lock specific tables.
	makeList ( $a, $mode=self::LIST_COMMA)
	Makes an encoded list of strings from an array.
	makeWhereFrom2d ( $data, $baseKey, $subKey)
	Build a partial where clause from a 2-d array such as used for LinkBatch.
	masterPosWait (DBMasterPos $pos, $timeout)
	Wait for the replica DB to catch up to a given master position.
	maxListLen ()
	Return the maximum number of items allowed in a list, or 0 for unlimited.
	namedLocksEnqueue ()
	Check to see if a named lock used by lock() use blocking queues.
	nextSequenceValue ( $seqName)
	Deprecated method, calls should be removed.
	onTransactionCommitOrIdle (callable $callback, $fname=__METHOD__)
	Run a callback as soon as there is no transaction pending.
	onTransactionIdle (callable $callback, $fname=__METHOD__)
	Alias for onTransactionCommitOrIdle() for backwards-compatibility.
	onTransactionPreCommitOrIdle (callable $callback, $fname=__METHOD__)
	Run a callback before the current transaction commits or now if there is none.
	onTransactionResolution (callable $callback, $fname=__METHOD__)
	Run a callback as soon as the current transaction commits or rolls back.
	pendingWriteAndCallbackCallers ()
	List the methods that have write queries or callbacks for the current transaction.
	pendingWriteCallers ()
	Get the list of method names that did write queries for this transaction.
	pendingWriteQueryDuration ( $type=self::ESTIMATE_TOTAL)
	Get the time spend running write queries for this transaction.
	pendingWriteRowsAffected ()
	Get the number of affected rows from pending write queries.
	ping (&$rtt=null)
	Ping the server and try to reconnect if it there is no connection.
	preCommitCallbacksPending ()
	query ( $sql, $fname=__METHOD__, $tempIgnore=false)
	Run an SQL query and return the result.
	replace ( $table, $uniqueIndexes, $rows, $fname=__METHOD__)
	REPLACE query wrapper.
	reportConnectionError ( $error='Unknown error')
	reportQueryError ( $error, $errno, $sql, $fname, $tempIgnore=false)
	Report a query error.
	restoreFlags ( $state=self::RESTORE_PRIOR)
	Restore the flags to their prior state before the last setFlag/clearFlag call.
	rollback ( $fname=__METHOD__, $flush='')
	Rollback a transaction previously started using begin().
	runOnTransactionIdleCallbacks ( $trigger)
	Actually consume and run any "on transaction idle/resolution" callbacks.
	runOnTransactionPreCommitCallbacks ()
	Actually consume and run any "on transaction pre-commit" callbacks.
	runTransactionListenerCallbacks ( $trigger)
	Actually run any "transaction listener" callbacks.
	select ( $table, $vars, $conds='', $fname=__METHOD__, $options=[], $join_conds=[])
	Execute a SELECT query constructed using the various parameters provided.
	selectDB ( $db)
	Change the current database.
	selectDomain ( $domain)
	Set the current domain (database, schema, and table prefix)
	selectField ( $table, $var, $cond='', $fname=__METHOD__, $options=[], $join_conds=[])
	A SELECT wrapper which returns a single field from a single result row.
	selectFieldValues ( $table, $var, $cond='', $fname=__METHOD__, $options=[], $join_conds=[])
	A SELECT wrapper which returns a list of single field values from result rows.
	selectRowCount ( $tables, $var=' *', $conds='', $fname=__METHOD__, $options=[], $join_conds=[])
	Get the number of rows in dataset.
	selectSQLText ( $table, $vars, $conds='', $fname=__METHOD__, $options=[], $join_conds=[])
	The equivalent of IDatabase::select() except that the constructed SQL is returned, instead of being immediately executed.
	serverIsReadOnly ()
	setBigSelects ( $value=true)
	Allow or deny "big selects" for this session only.
	setFlag ( $flag, $remember=self::REMEMBER_NOTHING)
	Set a flag for this connection.
	setIndexAliases (array $aliases)
	Convert certain index names to alternative names before querying the DB.
	setLazyMasterHandle (IDatabase $conn)
	Set a lazy-connecting DB handle to the master DB (for replication status purposes)
	setLBInfo ( $name, $value=null)
	Set the LB info array, or a member of it.
	setLogger (LoggerInterface $logger)
	Set the PSR-3 logger interface to use for query logging.
	setSchemaVars ( $vars)
	Set variables to be used in sourceFile/sourceStream, in preference to the ones in $GLOBALS.
	setSessionOptions (array $options)
	Override database's default behavior.
	setTableAliases (array $aliases)
	Make certain table names use their own database, schema, and table prefix when passed into SQL queries pre-escaped and without a qualified database name.
	setTransactionListener ( $name, callable $callback=null)
	Run a callback after each time any transaction commits or rolls back.
	setTrxEndCallbackSuppression ( $suppress)
	Whether to disable running of post-COMMIT/ROLLBACK callbacks.
	sourceFile ( $filename, callable $lineCallback=null, callable $resultCallback=null, $fname=false, callable $inputCallback=null)
	Read and execute SQL commands from a file.
	startAtomic ( $fname=__METHOD__, $cancelable=self::ATOMIC_NOT_CANCELABLE)
	Begin an atomic section of SQL statements.
	streamStatementEnd (&$sql, &$newLine)
	Called by sourceStream() to check if we've reached a statement end.
	strreplace ( $orig, $old, $new)
	Returns a command for str_replace function in SQL query.
	tableLocksHaveTransactionScope ()
	Checks if table locks acquired by lockTables() are transaction-bound in their scope.
	tableNames ()
	Fetch a number of table names into an array This is handy when you need to construct SQL for joins.
	tableNamesN ()
	Fetch a number of table names into an zero-indexed numerical array This is handy when you need to construct SQL for joins.
	tablePrefix ( $prefix=null)
	Get/set the table prefix.
	timestampOrNull ( $ts=null)
	Convert a timestamp in one of the formats accepted by wfTimestamp() to the format used for inserting into timestamp fields in this DBMS.
	trxLevel ()
	Gets the current transaction level.
	trxStatus ()
	trxTimestamp ()
	Get the UNIX timestamp of the time that the transaction was established.
	unionConditionPermutations ( $table, $vars, array $permute_conds, $extra_conds='', $fname=__METHOD__, $options=[], $join_conds=[])
	Construct a UNION query for permutations of conditions.
	unionSupportsOrderAndLimit ()
	Returns true if current database backend supports ORDER BY or LIMIT for separate subqueries within the UNION construct.
	unlock ( $lockName, $method)
	Release a lock.
	unlockTables ( $method)
	Unlock all tables locked via lockTables()
	useIndexClause ( $index)
	USE INDEX clause.
	wasConnectionError ( $errno)
	Do not use this method outside of Database/DBError classes.
	wasConnectionLoss ()
	Determines if the last query error was due to a dropped connection.
	wasErrorReissuable ()
	Determines if the last query error was due to something outside of the query itself.
	wasLockTimeout ()
	Determines if the last failure was due to a lock timeout.
	wasReadOnlyError ()
	Determines if the last failure was due to the database being read-only.
	writesOrCallbacksPending ()
	Whether there is a transaction open with either possible write queries or unresolved pre-commit/commit/resolution callbacks pending.
	writesPending ()
Public Member Functions inherited from Wikimedia\Rdbms\IDatabase
	buildSubString ( $input, $startPosition, $length=null)
	Build a SUBSTRING function.

Protected Member Functions
	closeConnection ()
	Closes a database connection, if it is open Returns success, true if already closed.
	doBegin ( $fname=__METHOD__)
	Issues the BEGIN command to the database server.
	doCommit ( $fname=__METHOD__)
	Issues the COMMIT command to the database server.
	doQuery ( $sql)
	Run a query and return a DBMS-dependent wrapper (that has all IResultWrapper methods)
	doRollback ( $fname=__METHOD__)
	Issues the ROLLBACK command to the database server.
	doSelectDomain (DatabaseDomain $domain)
	fetchAffectedRowCount ()
	open ( $server, $user, $password, $dbName, $schema, $tablePrefix)
	Open a new connection to the database (closing any existing one)
Protected Member Functions inherited from Wikimedia\Rdbms\Database
	assertBuildSubstringParams ( $startPosition, $length)
	Check type and bounds for parameters to self::buildSubstring()
	assertOpen ()
	Make sure isOpen() returns true as a sanity check.
	doInitConnection ()
	Actually connect to the database over the wire (or to local files)
	doLockTables (array $read, array $write, $method)
	Helper function for lockTables() that handles the actual table locking.
	doReleaseSavepoint ( $identifier, $fname)
	Release a savepoint.
	doRollbackToSavepoint ( $identifier, $fname)
	Rollback to a savepoint.
	doSavepoint ( $identifier, $fname)
	Create a savepoint.
	doUnlockTables ( $method)
	Helper function for unlockTables() that handles the actual table unlocking.
	escapeLikeInternal ( $s, $escapeChar='`')
	extractSingleFieldFromList ( $var)
	fieldNamesWithAlias ( $fields)
	Gets an array of aliased field names.
	fieldNameWithAlias ( $name, $alias=false)
	Get an aliased field name e.g.
	getApproximateLagStatus ()
	Get a replica DB lag estimate for this server.
	getBindingHandle ()
	Get the underlying binding connection handle.
	getDefaultSchemaVars ()
	Get schema variables to use if none have been set via setSchemaVars().
	getLastPHPError ()
	getLazyMasterHandle ()
	getLogContext (array $extras=[])
	Create a log context to pass to PSR-3 logger functions.
	getQueryVerb ( $sql)
	getReadOnlyReason ()
	getRecordedTransactionLagStatus ()
	Get the replica DB lag when the current transaction started.
	getSchemaVars ()
	Get schema variables.
	getTransactionRoundId ()
	indexName ( $index)
	Allows for index remapping in queries where this is not consistent across DBMS.
	installErrorHandler ()
	Set a custom error handler for logging errors during database connection.
	isInsertSelectSafe (array $insertOptions, array $selectOptions)
	isTransactableQuery ( $sql)
	Determine whether a SQL statement is sensitive to isolation level.
	isWriteQuery ( $sql)
	Determine whether a query writes to the DB.
	makeGroupByWithHaving ( $options)
	Returns an optional GROUP BY with an optional HAVING.
	makeInsertOptions ( $options)
	Helper for Database::insert().
	makeOrderBy ( $options)
	Returns an optional ORDER BY.
	makeUpdateOptions ( $options)
	Make UPDATE options for the Database::update function.
	makeUpdateOptionsArray ( $options)
	Make UPDATE options array for Database::makeUpdateOptions.
	nativeReplace ( $table, $rows, $fname)
	REPLACE query wrapper for MySQL and SQLite, which have a native REPLACE statement.
	nonNativeInsertSelect ( $destTable, $srcTable, $varMap, $conds, $fname=__METHOD__, $insertOptions=[], $selectOptions=[], $selectJoinConds=[])
	Implementation of insertSelect() based on select() and insert()
	normalizeConditions ( $conds, $fname)
	qualifiedTableComponents ( $name)
	Get the table components needed for a query given the currently selected database.
	registerTempTableOperation ( $sql)
	relationSchemaQualifier ()
	replaceLostConnection ( $fname)
	Close any existing (dead) database connection and open a new connection.
	replaceVars ( $ins)
	Database independent variable replacement.
	restoreErrorHandler ()
	Restore the previous error handler and return the last PHP error for this DB.
	resultObject ( $result)
	Take the result from a query, and wrap it in a ResultWrapper if necessary.
	tableNamesWithAlias ( $tables)
	Gets an array of aliased table names.
	tableNamesWithIndexClauseOrJOIN ( $tables, $use_index=[], $ignore_index=[], $join_conds=[])
	Get the aliased table name clause for a FROM clause which might have a JOIN and/or USE INDEX or IGNORE INDEX clause.
	tableNameWithAlias ( $table, $alias=false)
	Get an aliased table name.
	wasKnownStatementRollbackError ()
	wasQueryTimeout ( $error, $errno)
	Checks whether the cause of the error is detected to be a timeout.

Protected Attributes
int	$mAffectedRows
	The number of rows affected as an integer.
resource	$mLastResult = null
Protected Attributes inherited from Wikimedia\Rdbms\Database
integer null	$affectedRowCount
	Rows affected by the last query to query() or its CRUD wrappers.
string	$agent
	Agent name for query profiling.
bool	$cliMode
	Whether this PHP instance is for a CLI script.
resource null	$conn = null
	Database connection.
array	$connectionParams = []
	Parameters used by initConnection() to establish a connection.
LoggerInterface	$connLogger
DatabaseDomain	$currentDomain
string	$delimiter = ';'
callback	$deprecationLogger
	Deprecation logging callback.
callback	$errorLogger
	Error logging callback.
int	$flags
string bool null	$htmlErrors
	Stashed value of html_errors INI setting.
string[]	$indexAliases = []
	Map of (index alias => index)
float	$lastPing = 0.0
	UNIX timestamp.
string	$lastQuery = ''
	SQL query.
float bool	$lastWriteTime = false
	UNIX timestamp of last write query.
array	$lbInfo = []
int	$nonNativeInsertSelectBatchSize = 10000
bool	$opened = false
string	$password
	Password used to establish the current connection.
string bool	$phpError = false
array null	$preparedArgs
mixed	$profiler
	Class name or object With profileIn/profileOut methods.
LoggerInterface	$queryLogger
array bool	$schemaVars = false
string	$server
	Server that this instance is currently connected to.
array	$sessionTempTables = []
	Map of (table name => 1) for TEMPORARY tables.
array	$sessionVars = []
BagOStuff	$srvCache
	APC cache.
array[]	$tableAliases = []
	Map of (table => (dbname, schema, prefix) map)
array[]	$trxEndCallbacks = []
	List of (callable, method name, atomic section id)
bool	$trxEndCallbacksSuppressed = false
	Whether to suppress triggering of transaction end callbacks.
array[]	$trxIdleCallbacks = []
	List of (callable, method name, atomic section id)
int	$trxLevel = 0
	Either 1 if a transaction is active or 0 otherwise.
array[]	$trxPreCommitCallbacks = []
	List of (callable, method name, atomic section id)
TransactionProfiler	$trxProfiler
callable[]	$trxRecurringCallbacks = []
	Map of (name => callable)
string	$trxShortId = ''
	Either a short hexidecimal string if a transaction is active or "".
int	$trxStatus = self::STATUS_TRX_NONE
	Transaction status.
Exception null	$trxStatusCause
	The last error that caused the status to become STATUS_TRX_ERROR.
array null	$trxStatusIgnoredCause
	If wasKnownStatementRollbackError() prevented trxStatus from being set, the relevant details are stored here.
string	$user
	User that this instance is currently connected under the name of.

Private Member Functions
	fieldBindStatement ( $table, $col, &$val, $includeCol=false)
	fieldInfoMulti ( $table, $field)
	Function translates mysql_fetch_field() functionality on ORACLE.
	getSequenceData ( $table)
	Return sequence_name if table has a sequence.
	insertOneRow ( $table, $row, $fname)
	wrapConditionsForWhere ( $table, $conds, $parentCol=null)
	wrapFieldForWhere ( $table, &$col, &$val)

Private Attributes
string	$defaultCharset = 'AL32UTF8'
	Character set for Oracle database.
bool	$ignoreDupValOnIndex = false
array	$mFieldInfoCache = []
bool array	$sequenceData = null

Additional Inherited Members
Static Public Member Functions inherited from Wikimedia\Rdbms\Database
static	attributesFromType ( $dbType, $driver=null)
static	factory ( $dbType, $p=[], $connect=self::NEW_CONNECTED)
	Construct a Database subclass instance given a database type and parameters.
static	getCacheSetOptions (IDatabase $db1, IDatabase $db2=null)
	Merge the result of getSessionLagStatus() for several DBs using the most pessimistic values to estimate the lag of any data derived from them in combination.
Public Attributes inherited from Wikimedia\Rdbms\Database
const	DEADLOCK_DELAY_MAX = 1500000
	Maximum time to wait before retry.
const	DEADLOCK_DELAY_MIN = 500000
	Minimum time to wait before retry, in microseconds.
const	DEADLOCK_TRIES = 4
	Number of times to re-try an operation in case of deadlock.
const	PING_QUERY = 'SELECT 1 AS ping'
const	PING_TTL = 1.0
	How long before it is worth doing a dummy query to test the connection.
const	SLOW_WRITE_SEC = 0.500
const	SMALL_WRITE_ROWS = 100
const	TINY_WRITE_SEC = 0.010
Static Protected Member Functions inherited from Wikimedia\Rdbms\Database
static	generalizeSQL ( $sql)
	Removes most variables from an SQL query and replaces them with X or N for numbers.
static	getAttributes ()

Detailed Description

Definition at line 36 of file DatabaseOracle.php.

Constructor & Destructor Documentation

__construct()

DatabaseOracle::__construct

(

array

$params

)

Note

exceptions for missing libraries/drivers should be thrown in initConnection()

Parameters

array

$params

Parameters passed from Database::factory()

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 55 of file DatabaseOracle.php.

References $wgDBprefix.

__destruct()

DatabaseOracle::__destruct

(

)

Run a few simple sanity checks and close dangling connections.

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 66 of file DatabaseOracle.php.

References Wikimedia\Rdbms\Database\close().

Member Function Documentation

addIdentifierQuotes()

DatabaseOracle::addIdentifierQuotes

(

$s

)

Quotes an identifier using backticks or "double quotes" depending on the database type.

MySQL uses backticks while basically everything else uses double quotes. Since MySQL is the odd one out here the double quotes are our generic and we implement backticks in DatabaseMysqlBase.

Parameters

string

$s

Returns

string

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1083 of file DatabaseOracle.php.

References $s, and DBO_DDLMODE.

addQuotes()

DatabaseOracle::addQuotes

(

$s

)

Adds quotes and backslashes.

Parameters

string | int | null | bool | Blob

$s

Returns

string|int

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1074 of file DatabaseOracle.php.

References $s.

aggregateValue()

DatabaseOracle::aggregateValue	(		$valuedata,
			$valuename = 'value'
	)

Return aggregated value function call.

Parameters

array	$valuedata
string	$valuename

Returns

mixed

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 781 of file DatabaseOracle.php.

bitAnd()

DatabaseOracle::bitAnd	(		$fieldLeft,
			$fieldRight
	)

Parameters

string	$fieldLeft
string	$fieldRight

Returns

string

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1343 of file DatabaseOracle.php.

bitNot()

DatabaseOracle::bitNot

(

$field

)

Parameters

string

$field

Returns

string

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1338 of file DatabaseOracle.php.

bitOr()

DatabaseOracle::bitOr	(		$fieldLeft,
			$fieldRight
	)

Parameters

string	$fieldLeft
string	$fieldRight

Returns

string

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1347 of file DatabaseOracle.php.

buildGroupConcatField()

DatabaseOracle::buildGroupConcatField	(		$delim,
			$table,
			$field,
			$conds = '',
			$join_conds = []
	)

Build a GROUP_CONCAT or equivalent statement for a query.

This is useful for combining a field for several rows into a single string. NULL values will not appear in the output, duplicated values will appear, and the resulting delimiter-separated values have no defined sort order. Code using the results may need to use the PHP unique() or sort() methods.

Parameters

string	$delim	Glue to bind the results together
string | array	$table	Table name
string	$field	Field name
string | array	$conds	Conditions
string | array	$join_conds	Join conditions

Returns

string SQL text

Since

1.23

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1355 of file DatabaseOracle.php.

buildStringCast()

DatabaseOracle::buildStringCast

(

$field

)

Parameters

string

$field

Field or column to cast

Returns

string

Since

1.28

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1377 of file DatabaseOracle.php.

buildSubstring()

DatabaseOracle::buildSubstring	(		$input,
			$startPosition,
			$length = null
	)

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1363 of file DatabaseOracle.php.

References $input, and $params.

closeConnection()

DatabaseOracle::closeConnection ( )

protected

Closes a database connection, if it is open Returns success, true if already closed.

Returns

bool

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 179 of file DatabaseOracle.php.

dataSeek()

DatabaseOracle::dataSeek	(		$res,
			$row
	)

Parameters

mixed	$res
int	$row

Implements Wikimedia\Rdbms\IDatabase.

Definition at line 325 of file DatabaseOracle.php.

References $res.

decodeBlob()

DatabaseOracle::decodeBlob

(

$b

)

Some DBMSs return a special placeholder object representing blob fields in result objects.

Pass the object through this function to return the original string.

Parameters

string | Blob

$b

Returns

string

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 701 of file DatabaseOracle.php.

delete()

DatabaseOracle::delete	(		$table,
			$conds,
			$fname = __METHOD__
	)

DELETE query wrapper.

Parameters

string	$table	Table name
string | array	$conds	Array of conditions. See $conds in IDatabase::select() for the format. Use $conds == "*" to delete all rows
string	$fname	Name of the calling function

Exceptions

DBUnexpectedError

Returns

bool|IResultWrapper

Exceptions

DBError

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1186 of file DatabaseOracle.php.

References $fname, $wgActorTableSchemaMigrationStage, SCHEMA_COMPAT_WRITE_OLD, and tableName().

doBegin()

DatabaseOracle::doBegin (   $fname = __METHOD__ )

protected

Issues the BEGIN command to the database server.

See also

Database::begin()

Parameters

string

$fname

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 932 of file DatabaseOracle.php.

doCommit()

DatabaseOracle::doCommit (   $fname = __METHOD__ )

protected

Issues the COMMIT command to the database server.

See also

Database::commit()

Parameters

string

$fname

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 937 of file DatabaseOracle.php.

References $ret.

doQuery()

DatabaseOracle::doQuery (   $sql )

protected

Run a query and return a DBMS-dependent wrapper (that has all IResultWrapper methods)

This might return things, such as mysqli_result, that do not formally implement IResultWrapper, but nonetheless implement all of its methods correctly

Parameters

string

$sql

SQL query.

Returns

IResultWrapper|bool Iterator to feed to fetchObject/fetchRow; false on failure

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 187 of file DatabaseOracle.php.

References code, DBO_DDLMODE, FROM, Wikimedia\Rdbms\Database\getFlag(), StringUtils\isUtf8(), message, and wfDebug().

Referenced by open().

doRollback()

DatabaseOracle::doRollback (   $fname = __METHOD__ )

protected

Issues the ROLLBACK command to the database server.

See also

Database::rollback()

Parameters

string

$fname

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 948 of file DatabaseOracle.php.

doSelectDomain()

DatabaseOracle::doSelectDomain ( DatabaseDomain  $domain )

protected

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1038 of file DatabaseOracle.php.

References $e, $success, Wikimedia\Rdbms\DatabaseDomain\getDatabase(), Wikimedia\Rdbms\DatabaseDomain\getSchema(), and user.

dropTable()

DatabaseOracle::dropTable	(		$tableName,
			$fName = __METHOD__
	)

Delete a table.

Parameters

string	$tableName
string	$fName

Returns

bool|ResultWrapper

Since

1.18

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 761 of file DatabaseOracle.php.

References tableName().

duplicateTableStructure()

DatabaseOracle::duplicateTableStructure	(		$oldName,
			$newName,
			$temporary = false,
			$fname = __METHOD__
	)

Creates a new table with structure copied from existing table.

Note that unlike most database abstraction functions, this function does not automatically append database prefix, because it works at a lower abstraction level. The table names passed to this function shall not be quoted (this function calls addIdentifierQuotes() when needed).

Parameters

string	$oldName	Name of table whose structure should be copied
string	$newName	Name of table to be created
bool	$temporary	Whether the new table should be temporary
string	$fname	Calling function name

Returns

bool True if operation was successful

Exceptions

RuntimeException

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 720 of file DatabaseOracle.php.

encodeBlob()

DatabaseOracle::encodeBlob

(

$b

)

Some DBMSs have a special format for inserting into blob fields, they don't allow simple quoted strings to be inserted.

To insert into such a field, pass the data through this function before passing it to IDatabase::insert().

Parameters

string

$b

Returns

string|Blob

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 697 of file DatabaseOracle.php.

execFlags()

DatabaseOracle::execFlags

(

)

Definition at line 183 of file DatabaseOracle.php.

References Wikimedia\Rdbms\Database\trxLevel().

fetchAffectedRowCount()

DatabaseOracle::fetchAffectedRowCount ( )

protected

Returns

int Number of retrieved rows according to the driver

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 353 of file DatabaseOracle.php.

fetchObject()

DatabaseOracle::fetchObject

(

$res

)

Parameters

ResultWrapper | ORAResult

$res

Returns

mixed

Implements Wikimedia\Rdbms\IDatabase.

Definition at line 267 of file DatabaseOracle.php.

References $res.

fetchRow()

DatabaseOracle::fetchRow

(

$res

)

Parameters

ResultWrapper | ORAResult

$res

Returns

mixed

Implements Wikimedia\Rdbms\IDatabase.

Definition at line 279 of file DatabaseOracle.php.

References $res.

fieldBindStatement()

DatabaseOracle::fieldBindStatement (   $table,   $col, &  $val,   $includeCol = false  )

private

Definition at line 402 of file DatabaseOracle.php.

fieldInfo()

DatabaseOracle::fieldInfo	(		$table,
			$field
	)

Exceptions

DBUnexpectedError

Parameters

string	$table
string	$field

Returns

ORAField

Implements Wikimedia\Rdbms\IMaintainableDatabase.

Definition at line 924 of file DatabaseOracle.php.

fieldInfoMulti()

DatabaseOracle::fieldInfoMulti (   $table,   $field  )

private

Function translates mysql_fetch_field() functionality on ORACLE.

Caching is present for reducing query time. For internal calls. Use fieldInfo for normal usage. Returns false if the field doesn't exist

Parameters

array | string	$table
string	$field

Returns

ORAField|ORAResult|false

Definition at line 866 of file DatabaseOracle.php.

References $e, $res, and as.

fieldName()

DatabaseOracle::fieldName	(		$res,
			$n
	)

Get a field name in a result object.

See also

https://secure.php.net/mysql_field_name

Parameters

mixed	$res	A SQL result
int	$n

Returns

string

Implements Wikimedia\Rdbms\IDatabase.

Definition at line 311 of file DatabaseOracle.php.

freeResult()

DatabaseOracle::freeResult

(

$res

)

Frees resources associated with the LOB descriptor.

Parameters

ResultWrapper | ORAResult

$res

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 255 of file DatabaseOracle.php.

References $res.

getInfinity()

DatabaseOracle::getInfinity

(

)

Find out when 'infinity' is.

Most DBMSes support this. This is a special keyword for timestamps in PostgreSQL, and works with CHAR(14) as well because "i" sorts after all numbers.

Returns

string

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1381 of file DatabaseOracle.php.

getSequenceData()

DatabaseOracle::getSequenceData (   $table )

private

Return sequence_name if table has a sequence.

Parameters

string

$table

Returns

bool

Definition at line 648 of file DatabaseOracle.php.

References tableName().

getServer()

DatabaseOracle::getServer

(

)

Get the server hostname or IP address.

Returns

string

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1351 of file DatabaseOracle.php.

getServerVersion()

DatabaseOracle::getServerVersion

(

)

Returns

string Version information from the database

Implements Wikimedia\Rdbms\IDatabase.

Definition at line 795 of file DatabaseOracle.php.

getSoftwareLink()

DatabaseOracle::getSoftwareLink

(

)

Returns

string Wikitext of a link to the server software's web site

Implements Wikimedia\Rdbms\IDatabase.

Definition at line 788 of file DatabaseOracle.php.

getType()

DatabaseOracle::getType

(

)

Get the type of the DBMS, as it appears in $wgDBtype.

Returns

string

Implements Wikimedia\Rdbms\IDatabase.

Definition at line 74 of file DatabaseOracle.php.

implicitGroupby()

DatabaseOracle::implicitGroupby

(

)

Returns true if this database does an implicit sort when doing GROUP BY.

Returns

bool

Deprecated:

Since 1.30; only use grouped or aggregated fields in the SELECT

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 78 of file DatabaseOracle.php.

implicitOrderby()

DatabaseOracle::implicitOrderby

(

)

Returns true if this database does an implicit order by when the column has an index For example: SELECT page_title FROM page LIMIT 1.

Returns

bool

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 82 of file DatabaseOracle.php.

indexExists()

DatabaseOracle::indexExists	(		$table,
			$index,
			$fname = __METHOD__
	)

Query whether a given index exists.

Parameters

string	$table
string	$index
string	$fname

Returns

bool

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 816 of file DatabaseOracle.php.

References $res, and tableName().

indexInfo()

DatabaseOracle::indexInfo	(		$table,
			$index,
			$fname = __METHOD__
	)

Returns information about an index If errors are explicitly ignored, returns NULL on failure.

Parameters

string	$table
string	$index
string	$fname

Returns

bool

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 365 of file DatabaseOracle.php.

indexUnique()

DatabaseOracle::indexUnique	(		$table,
			$index,
			$fname = __METHOD__
	)

Definition at line 369 of file DatabaseOracle.php.

insert()

DatabaseOracle::insert	(		$table,
			$a,
			$fname = __METHOD__,
			$options = []
	)

INSERT wrapper, inserts an array into a table.

$a may be either:

• A single associative array. The array keys are the field names, and the values are the values to insert. The values are treated as data and will be quoted appropriately. If NULL is inserted, this will be converted to a database NULL.
• An array with numeric keys, holding a list of associative arrays. This causes a multi-row INSERT on DBMSs that support it. The keys in each subarray must be identical to each other, and in the same order.

Usually throws a DBQueryError on failure. If errors are explicitly ignored, returns success.

$options is an array of options, with boolean options encoded as values with numeric keys, in the same style as $options in IDatabase::select(). Supported options are:

• IGNORE: Boolean: if present, duplicate key errors are ignored, and any rows which cause duplicate key errors are not inserted. It's possible to determine how many rows were successfully inserted using IDatabase::affectedRows().

Parameters

string	$table	Table name. This will be passed through Database::tableName().
array	$a	Array of rows to insert
string	$fname	Calling function name (use METHOD) for logs/profiling
array	$options	Array of options

Returns

bool

Exceptions

DBError

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 373 of file DatabaseOracle.php.

References $fname, $options, and as.

insertId()

DatabaseOracle::insertId

(

)

Get the inserted value of an auto-increment row.

This should only be called after an insert that used an auto-incremented value. If no such insert was previously done in the current database session, the return value is undefined.

Returns

int

Implements Wikimedia\Rdbms\IDatabase.

Definition at line 315 of file DatabaseOracle.php.

References $res, and query.

insertOneRow()

DatabaseOracle::insertOneRow (   $table,   $row,   $fname  )

private

Parameters

string	$table
array	$row
string	$fname

Returns

bool

Exceptions

DBUnexpectedError

Definition at line 444 of file DatabaseOracle.php.

References $e, as, and tableName().

isQuotedIdentifier()

DatabaseOracle::isQuotedIdentifier

(

$name

)

Returns if the given identifier looks quoted or not according to the database convention for quoting identifiers .

Note

Do not use this to determine if untrusted input is safe. A malicious user can trick this function.

Parameters

string

$name

Returns

bool

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1095 of file DatabaseOracle.php.

References $s.

lastErrno()

DatabaseOracle::lastErrno

(

)

Get the last error number.

See also

https://secure.php.net/mysql_errno

Returns

int

Implements Wikimedia\Rdbms\IDatabase.

Definition at line 343 of file DatabaseOracle.php.

References $e.

lastError()

DatabaseOracle::lastError

(

)

Get a description of the last error.

See also

https://secure.php.net/mysql_error

Returns

string

Implements Wikimedia\Rdbms\IDatabase.

Definition at line 333 of file DatabaseOracle.php.

References $e.

Referenced by open().

limitResult()

DatabaseOracle::limitResult	(		$sql,
			$limit,
			$offset = false
	)

Construct a LIMIT query with optional offset.

This is used for query pages. The SQL should be adjusted so that only the first $limit rows are returned. If $offset is provided as well, then the first $offset rows should be discarded, and the next $limit rows should be returned. If the result of the query is not ordered, then the rows to be returned are theoretically arbitrary.

$sql is expected to be a SELECT, if that makes a difference.

The version provided by default works in MySQL and SQLite. It will very likely need to be overridden for most other DBMSes.

Parameters

string	$sql	SQL query we will append the limit too
int	$limit	The SQL limit
int | bool	$offset	The SQL offset (default false)

Exceptions

DBUnexpectedError

Returns

string

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 689 of file DatabaseOracle.php.

listTables()

DatabaseOracle::listTables	(		$prefix = null,
			$fname = __METHOD__
	)

List all tables on the database.

Parameters

string | null	$prefix	Only show tables with this prefix, e.g. mw_
string	$fname	Calling function name

Exceptions

DBError

Returns

array

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 736 of file DatabaseOracle.php.

makeSelectOptions()

DatabaseOracle::makeSelectOptions

(

$options

)

Returns an optional USE INDEX clause to go after the table, and a string to go at the end of the query.

Parameters

array

$options

An associative array of options to be turned into an SQL query, valid keys are listed in the function.

Returns

array

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1148 of file DatabaseOracle.php.

References $options, and as.

nativeInsertSelect()

DatabaseOracle::nativeInsertSelect	(		$destTable,
			$srcTable,
			$varMap,
			$conds,
			$fname = __METHOD__,
			$insertOptions = [],
			$selectOptions = [],
			$selectJoinConds = []
	)

Native server-side implementation of insertSelect() for situations where we don't want to select everything into memory.

See also

IDatabase::insertSelect()

Parameters

string	$destTable
string | array	$srcTable
array	$varMap
array	$conds
string	$fname
array	$insertOptions
array	$selectOptions
array	$selectJoinConds

Returns

bool

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 550 of file DatabaseOracle.php.

References tableName().

numFields()

DatabaseOracle::numFields

(

$res

)

Parameters

ResultWrapper | ORAResult

$res

Returns

int

Implements Wikimedia\Rdbms\IDatabase.

Definition at line 303 of file DatabaseOracle.php.

References $res.

numRows()

DatabaseOracle::numRows

(

$res

)

Parameters

ResultWrapper | ORAResult

$res

Returns

int

Implements Wikimedia\Rdbms\IDatabase.

Definition at line 291 of file DatabaseOracle.php.

References $res.

open()

DatabaseOracle::open (   $server,   $user,   $password,   $dbName,   $schema,   $tablePrefix  )

protected

Open a new connection to the database (closing any existing one)

Parameters

string	$server	Database server host
string	$user	Database user name
string	$password	Database user password
string	$dbName	Database name
string | null	$schema	Database schema name
string	$tablePrefix	Table prefix

Returns

bool

Exceptions

DBConnectionError

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 86 of file DatabaseOracle.php.

References Wikimedia\Rdbms\Database\$conn, Wikimedia\Rdbms\Database\$password, Wikimedia\Rdbms\Database\$server, Wikimedia\Rdbms\Database\$user, $wgDBOracleDRCP, Wikimedia\Rdbms\Database\close(), DBO_DEFAULT, DBO_PERSISTENT, DBO_SYSDBA, doQuery(), e, is, lastError(), return, Wikimedia\Rdbms\Database\selectDB(), server, Wikimedia\Rdbms\Database\setFlag(), and user.

queryIgnore()

DatabaseOracle::queryIgnore	(		$sql,
			$fname = ''
	)

Definition at line 247 of file DatabaseOracle.php.

References $fname, and query.

removeIdentifierQuotes()

DatabaseOracle::removeIdentifierQuotes

(

$s

)

Definition at line 1091 of file DatabaseOracle.php.

References $s.

selectRow()

DatabaseOracle::selectRow	(		$table,
			$vars,
			$conds,
			$fname = __METHOD__,
			$options = [],
			$join_conds = []
	)

Single row SELECT wrapper.

Equivalent to IDatabase::select(), except that a single row object is returned. If the query returns no rows, false is returned.

Parameters

string | array	$table	Table name
string | array	$vars	Field names
array	$conds	Conditions
string	$fname	Caller function name
string | array	$options	Query options
array | string	$join_conds	Join conditions

Returns

stdClass|bool

Exceptions

DBError

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1130 of file DatabaseOracle.php.

References $fname, $options, and $vars.

sourceStream()

DatabaseOracle::sourceStream	(		$fp,
		callable	$lineCallback = null,
		callable	$resultCallback = null,
			$fname = __METHOD__,
		callable	$inputCallback = null
	)

Read and execute commands from an open file handle.

Returns true on success, error string or exception on failure (depending on object's error ignore settings).

Parameters

resource	$fp	File handle
callable | null	$lineCallback	Optional function called before reading each query
callable | null	$resultCallback	Optional function called for each MySQL result
string	$fname	Calling function name
callable | null	$inputCallback	Optional function called for each complete query sent

Returns

bool|string

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 956 of file DatabaseOracle.php.

References $line, $res, and as.

strencode()

DatabaseOracle::strencode

(

$s

)

Wrapper for addslashes()

Parameters

string

$s

String to be slashed.

Returns

string Slashed string.

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1070 of file DatabaseOracle.php.

References $s.

tableExists()

DatabaseOracle::tableExists	(		$table,
			$fname = __METHOD__
	)

Query whether a given table exists (in the given schema, or the default mw one if not given)

Parameters

string	$table
string	$fname

Returns

bool

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 839 of file DatabaseOracle.php.

References $res, and tableName().

tableName()

DatabaseOracle::tableName	(		$name,
			$format = 'quoted'
	)

Format a table name ready for use in constructing an SQL query.

This does two important things: it quotes the table names to clean them up, and it adds a table prefix if only given a table name with no quotes.

All functions of this object which require a table name call this function themselves. Pass the canonical name to such functions. This is only needed when calling query() directly.

Note

This function does not sanitize user input. It is not safe to use this function to escape user input.

Parameters

string	$name	Database table name
string	$format	One of: quoted - Automatically pass the table name through addIdentifierQuotes() so that it can be used in a query. raw - Do not add identifier quotes to the table name

Returns

string Full database name

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 618 of file DatabaseOracle.php.

References $name.

tableNameInternal()

DatabaseOracle::tableNameInternal

(

$name

)

Definition at line 636 of file DatabaseOracle.php.

References $name, and tableName().

textFieldSize()

DatabaseOracle::textFieldSize	(		$table,
			$field
	)

Returns the size of a text field, or -1 for "unlimited".

Parameters

string	$table
string	$field

Returns

mixed

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 683 of file DatabaseOracle.php.

timestamp()

DatabaseOracle::timestamp

(

$ts = 0

)

Convert a timestamp in one of the formats accepted by wfTimestamp() to the format used for inserting into timestamp fields in this DBMS.

The result is unquoted, and needs to be passed through addQuotes() before it can be included in raw SQL.

Parameters

string | int

$ts

Returns

string

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 770 of file DatabaseOracle.php.

References wfTimestamp().

unionQueries()

DatabaseOracle::unionQueries	(		$sqls,
			$all
	)

Construct a UNION query This is used for providing overload point for other DB abstractions not compatible with the MySQL syntax.

Parameters

array	$sqls	SQL statements to combine
bool	$all	Use UNION ALL

Returns

string SQL fragment

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 709 of file DatabaseOracle.php.

update()

DatabaseOracle::update	(		$table,
			$values,
			$conds,
			$fname = __METHOD__,
			$options = []
	)

Parameters

string	$table
array	$values
array	$conds
string	$fname
array	$options

Returns

bool

Exceptions

DBUnexpectedError

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1234 of file DatabaseOracle.php.

References $e, $options, as, LIST_AND, and tableName().

upsert()

DatabaseOracle::upsert	(		$table,
		array	$rows,
		array	$uniqueIndexes,
		array	$set,
			$fname = __METHOD__
	)

INSERT ON DUPLICATE KEY UPDATE wrapper, upserts an array into a table.

This updates any conflicting rows (according to the unique indexes) using the provided SET clause and inserts any remaining (non-conflicted) rows.

$rows may be either:

• A single associative array. The array keys are the field names, and the values are the values to insert. The values are treated as data and will be quoted appropriately. If NULL is inserted, this will be converted to a database NULL.
• An array with numeric keys, holding a list of associative arrays. This causes a multi-row INSERT on DBMSs that support it. The keys in each subarray must be identical to each other, and in the same order.

It may be more efficient to leave off unique indexes which are unlikely to collide. However if you do this, you run the risk of encountering errors which wouldn't have occurred in MySQL.

Usually throws a DBQueryError on failure. If errors are explicitly ignored, returns success.

Since

1.22

Parameters

string	$table	Table name. This will be passed through Database::tableName().
array	$rows	A single row or list of rows to insert
array	$uniqueIndexes	Either a list of fields that define a unique index or an array of such lists if there are multiple unique indexes defined in the schema
array	$set	An array of values to SET. For each array element, the key gives the field name, and the value gives the data to set that field to. The data will be quoted by IDatabase::addQuotes(). Values with integer keys form unquoted SET statements, which can be used for things like "field = field + 1" or similar computed values.
string	$fname	Calling function name (use METHOD) for logs/profiling

Exceptions

DBError

Returns

bool

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 592 of file DatabaseOracle.php.

wasDeadlock()

DatabaseOracle::wasDeadlock

(

)

Determines if the last failure was due to a deadlock.

Note that during a deadlock, the prior transaction will have been lost

Returns

bool

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 716 of file DatabaseOracle.php.

wrapConditionsForWhere()

DatabaseOracle::wrapConditionsForWhere (   $table,   $conds,   $parentCol = null  )

private

Definition at line 1112 of file DatabaseOracle.php.

References as.

wrapFieldForWhere()

DatabaseOracle::wrapFieldForWhere (   $table, &  $col, &  $val  )

private

Definition at line 1099 of file DatabaseOracle.php.

Member Data Documentation

$defaultCharset

string DatabaseOracle::$defaultCharset = 'AL32UTF8'

private

Character set for Oracle database.

Definition at line 50 of file DatabaseOracle.php.

$ignoreDupValOnIndex

bool DatabaseOracle::$ignoreDupValOnIndex = false

private

Definition at line 44 of file DatabaseOracle.php.

$mAffectedRows

int DatabaseOracle::$mAffectedRows

protected

The number of rows affected as an integer.

Definition at line 41 of file DatabaseOracle.php.

$mFieldInfoCache

array DatabaseOracle::$mFieldInfoCache = []

private

Definition at line 53 of file DatabaseOracle.php.

$mLastResult

resource DatabaseOracle::$mLastResult = null

protected

Definition at line 38 of file DatabaseOracle.php.

$sequenceData

bool array DatabaseOracle::$sequenceData = null

private

Definition at line 47 of file DatabaseOracle.php.

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The documentation for this class was generated from the following file:

• includes/db/DatabaseOracle.php