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CLOSE

Updated at: Mar 13, 2020 GMT+08:00

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 via ROLLBACK.
  • If the creating transaction successfully commits, the holdable cursor remains open until an explicit CLOSE is executed, or the client disconnects.
  • DWS does not have an explicit OPEN cursor statement. A cursor is considered open when it is declared. You can see all available cursors by querying the pg_cursors system view.

Syntax

1
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

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