如何纠正子查询sql中太多值

Question

UPDATE PRE_LB 
SET PR_NPR='PR' 
WHERE CIFNO IN (
  SELECT CIFNO,SUM(LIMIT) 
  FROM PRE_LB 
  WHERE LTWPB IN ('SE','ED') 
  GROUP BY CIFNO 
  HAVING SUM(LIMIT)<=2000000
) AND LTWPB IN ('SE','ED');

SQL 错误：ORA-00913：值太多

如何在不使用视图的情况下进行纠正

Answer 1

IN 运算符期望从一列获取数据，从子查询中删除

sum()

:

UPDATE PRE_LB 
SET PR_NPR='PR' 
WHERE CIFNO IN (
      SELECT CIFNO
      FROM PRE_LB 
      WHERE LTWPB IN ('SE','ED') 
      GROUP BY CIFNO 
      HAVING SUM(LIMIT)<=2000000
) AND LTWPB IN ('SE','ED');