MDB_Common::nextId()

MDB_Common::nextId() -- returns the next free id of a sequence

Synopsis


      require_once 'MDB.php';

resource nextId ( string $seq_name , boolean $onDemand = TRUE )

boolean $onDemand: when TRUE the sequence is automatic created, if it not exists.

resource - a free id or a MDB_Error, if fail

Possible PEAR_Error values

Error code	Error message	Reason	Solution
MDB_ERROR_NOT_CAPABLE	NULL	Function is not supported by the database backend	Switch to another database system, if you really need this feature.
MDB_ERROR_NOT_LOCKED	NULL	Locking of sequence table fails	Database specific, check documention of your database,
MDB_ERROR_NOSUCHTABLE	NULL	Sequence table was not found	Try to create a new sequence or if you are sure, a sequence was already create, check database integrity

This function can not be called statically.

createSequence() , dropSequence()