Description
CLOSE frees the resources associated with an open cursor.
After the cursor is closed, no subsequent operations
are allowed on it. A cursor should be closed when it is
no longer needed.
Every non-holdable open cursor is implicitly closed when a
transaction is terminated by COMMIT or
ROLLBACK. A holdable cursor is implicitly
closed if the transaction that created it aborts via
ROLLBACK. If the creating transaction successfully
commits, the holdable
cursor remains open until an explicit CLOSE is
executed, or the client disconnects.