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
SQLite
With SQLite, opened cursors using SELECT
statements without a FOR
UPDATE
clause are not closed when a transaction ends: All SQLite cursors are WITH
HOLD
cursors unless the FOR UPDATE
clause is used in the
SELECT
statement.
Solution
BDL cursors that are not declared WITH HOLD
are automatically closed by the
database interface when a COMMIT WORK
or ROLLBACK WORK
is
performed.
Since SQLite automatically closes FOR UPDATE
cursors when the transaction ends,
opening cursors declared FOR UPDATE
and WITH HOLD
results in an
SQL error that does not normally appear with Informix
under the same conditions.
Review the program logic in order to find another way to set locks.