CLOSE

Function

CLOSE frees the resources associated with an open cursor.

Precautions

• After a 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 by ROLLBACK.
• If the cursor creation transaction is successfully committed, the holdable cursor remains open until an explicit CLOSE operation is executed, or the client disconnects.
• openGauss does not have an explicit OPEN cursor statement. A cursor is considered open when it is declared. You can view all available cursors by querying the pg_cursors system view.

Syntax

Close ::= CLOSE { cursor_name | ALL } ;

Parameter Description

• cursor_name

  Specifies the name of a cursor to be closed.

• ALL

  Closes all open cursors.

Examples

See Examples in FETCH.

Helpful Links

FETCH，MOVE