Question

我的查询如下，我收到错误

无效的关系运算符

on line4。

select  SERIAL 
  from base.base_voucher_used b 
 where b.dw_date_key 
   and serial in (select serial 
                    from base.base_voucher_used a 
                   where DW_DATE_KEY 
                   group by serial 
                  having count(*) > 1)

Answer 1

您的where clause列中没有为dw_date_key列指定任何条件。

我假设您要选择那些计数大于1的serial。如果是这样，只有一个查询就足够了。

select serial 
  from base.base_voucher_used a 
 where DW_DATE_KEY = 1  --add your condition here
 group by serial 
having count(*) > 1

我得到ORA-00920：无效的关系运算符

1 个答案: