我想删除从游标中获取的数据而不使用更新

Question

我从 select 语句中过滤了一组数据，我需要从 table 'SHOP_MATERIAL_ASSIGN_TAB' 中删除这些数据。我用光标删除了。但这在执行时引起了问题。任何不使用 'for update' 方法来完成它的想法。

DECLARE
  CURSOR DELDATA_ IS
    SELECT B.*
      FROM IC_WQ_OLD_LOCATION_TAB A, SHOP_MATERIAL_ASSIGN_TAB B
     WHERE A.LOCATION_NO = B.LOCATION_NO
       AND A.SITE = B.CONTRACT
       AND B.LOCATION_NO = 'HYLIN001'
       FOR UPDATE;

  TEMP_ DELDATA_%ROWTYPE;

BEGIN
  OPEN DELDATA_;
  LOOP
    FETCH DELDATA_
      INTO TEMP_;
    EXIT WHEN DELDATA_%NOTFOUND;
    DELETE FROM SHOP_MATERIAL_ASSIGN_TAB WHERE CURRENT OF DELDATA_;
  END LOOP;
  COMMIT;
END;

Answer 1

根本不要使用 PL/SQL。

DELETE FROM shop_material_assign_tab
      WHERE     EXISTS
                   (SELECT NULL
                      FROM ic_wq_old_location_tab a
                     WHERE     a.location_no = b.location_no
                           AND a.site = b.contract)
            AND b.location_no = 'HYLIN001'

我想删除从游标中获取的数据而不使用更新

i want to delete the data fetching from the cursor without using for update

plsql

cursor