dbRollback¶
Purpose¶
Rolls back a transaction on the database.
Format¶
-
ret =
dbRollback(db_id)¶ - Parameters:
db_id (scalar) – database connection index number.
- Returns:
ret (scalar) – 1 to indicate success and a 0 if the rollback fails.
Remarks¶
A rollback is only possible if the SQL driver supports transactions and
a dbTransaction() has been started.
Note
For some databases, the rollback will fail and return 0 if there is an active query using the database for a SELECT. Make the query inactive before doing the rollback.
Call dbGetLastError() to get information about errors.