oracle 如何使用 WHERE CURRENT OF 更新游标记录？
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时间：2020-09-10 04:36:19 来源:igfitidea点击:
How to update cursor records using WHERE CURRENT OF?
提问by Centurion
I'm getting "ORA-01410: Invalid ROWID" exception when executing this block. Any ideas why?
执行此块时出现“ORA-01410：无效的ROWID”异常。任何想法为什么？
DECLARE
CURSOR c_orders IS
SELECT * from orders FOR UPDATE OF no;
v_order_record c_orders%ROWTYPE;
BEGIN
OPEN c_orders;
LOOP
FETCH c_orders INTO v_order_record;
UPDATE orders SET no = 11 WHERE CURRENT OF c_orders;
EXIT WHEN c_orders%NOTFOUND;
END LOOP;
CLOSE c_orders;
END;
However, everything works if using FOR IN syntax:
但是，如果使用 FOR IN 语法，一切正常：
DECLARE
CURSOR c_orders IS
SELECT * from orders FOR UPDATE OF no;
BEGIN
FOR rec IN c_orders
LOOP
UPDATE orders SET no = 11 WHERE CURRENT OF c_orders;
END LOOP;
END;
回答by Mat
Move the exit whento before the update- you can't update something that doesn't exist.
将exit whento 移到update- 您无法更新不存在的内容。
