Cursors WITH HOLD

Informix®

Informix closes opened cursors automatically when a transaction ends, unless the WITH HOLD option is used in the DECLARE instruction:

DECLARE c1 CURSOR WITH HOLD FOR SELECT ...
OPEN c1
BEGIN WORK
FETCH c1 ...
COMMIT WORK
FETCH c1 ...
CLOSE c1

SAP ASE

By default, SAP® ASE does not close cursors when a transaction ends.

See the SAP ASE manual for more details about cursor behaviors and configuration settings to control the behavior of cursors.

Solution

BDL cursors declared WITH HOLD remain open even after terminating a transaction with a COMMIT WORK or ROLLBACK WORK.

For consistency with other database brands, database cursors that are not declared WITH HOLD are automatically closed, when a COMMIT WORK or ROLLBACK WORK is performed.

Important: Opening a WITH HOLD cursor declared with a

SELECT
FOR UPDATE

results in an SQL error; in the same conditions, this does not normally appear with Informix. Review the program logic in order to find another way to set locks.