PEAR Справочное руководство
Пред.		След.

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)

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

resource - a free id or a MDB_Error, if fail

Таблица 34-1. Возможные значения PEAR_Error

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

Эта функция не должна вызываться статически.

createSequence() , dropSequence()

Пред.	Начало	След.
MDB_Common::limitQuery()	Уровень выше	MDB_Common::numCols()

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