En sys_refcursor
kan inte användas i update
påstående. Du kan använda en explicit markör som visas nedan. Använd så här:
DECLARE
cursor a_cursor is
SELECT mytable.VID
FROM mytable
WHERE ROWNUM <= COUNT FOR UPDATE;
a_id number;
begin
OPEN a_cursor;
loop
FETCH a_cursor INTO a_id;
exit when a_cursor%notfound;
UPDATE mytable SET
...
WHERE VID = a_vid;
end loop;
COMMIT;
close a_cursor;
end;
Redigera:
create or replace PROCEDURE get_rows(
a_cursor OUT SYS_REFCURSOR,
a_id IN VARCHAR,
a_count IN NUMBER)
IS
cursor a_cur is
SELECT mytable.VID
FROM mytable
WHERE ROWNUM <= a_COUNT ;
a_id NUMBER;
cnumber number;
BEGIN
OPEN a_cur;
LOOP
FETCH a_cur INTO a_id;
IF a_cur%notfound THEN
cnumber := 9999;
End if;
exit when a_cursor%notfound;
UPDATE mytable SET
...
WHERE VID = a_vid;
END loop;
COMMIT;
CLOSE a_cur;
Open a_cursor for select * from mytable;
end ;