CLOSE (result set cursor)
Closes a database cursor and frees resources allocated on the database server for the result set.
Syntax
CLOSE cid
- cid is the identifier of the database cursor.
Usage
The CLOSE
instruction
releases the resources allocated for the result set on the database
server.
After using the CLOSE
instruction,
you must reopen the cursor with OPEN
before
retrieving values with FETCH
.
It is recommended that you close the cursor when the result set is no longer used, this saves resources on the database client and database server side.
Example
MAIN
DATABASE stores
DECLARE c1 CURSOR FOR SELECT * FROM customer
OPEN c1
CLOSE c1
OPEN c1
CLOSE c1
END MAIN