-- close a cursor
The name of an open cursor to close.
Message returned if the cursor is successfully closed.
- WARNING: PerformPortalClose: portal "cursor" not found
This warning is given if
cursor is not
declared or has already been closed.
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.
An implicit close is executed for every open cursor when a
transaction is terminated by COMMIT
PostgreSQL does not have
an explicit OPEN cursor statement;
a cursor is considered open when it is declared.
Use the DECLARE statement to declare a cursor.
Close the cursor liahona:
CLOSE is fully compatible with SQL92.