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


require_once 'MDB.php';

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


string $seq_name

name of the sequence

boolean $onDemand

when TRUE the sequence is automatic created, if it not exists.

Return value

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.

send a limited query to the database (Previous) get number of columns (Next)
Last updated: Sat, 16 Feb 2019 — Download Documentation
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