Question

我需要从选择中得到一个案例陈述：

select buyer id,
buyer_add
buyer_city,
buyer_state,
 , case
    when Special_Desc  like "%ma%" then "Mail"
    when Special_Desc like "%pa%" then "phone"
    else " "
end as Special_Handling 
         from
            ( select string_func(buyer_id) 
              from advance.pledge p) Special_Desc
from buyer_info
    where..

换句话说，我需要在Special_desc上做一个将从Select语句中生成的案例

先谢谢你。

Answer 1

Hi this is an example which illustrates how to use case within a select statement. I hope this query resolves your problem. Please let me know for any issues. Thanks

SELECT sr_no,
(SELECT
CASE
WHEN UPPER(name)=UPPER('Avrajit') THEN 'My_name1'
WHEN UPPER(name)=UPPER('Shubhojit') THEN 'My_name2'
 END FROM Avrajit
) AS condition
FROM avrajit;

Answer 2

你应该这样：

select buyer id,
       buyer_add
       buyer_city,
       buyer_state,
       case
         when regexp_like(s.Special_Desc, 'ma*', 'i') then 'Mail'
         when regexp_like(s.Special_Desc, 'pa*', 'i') then 'Phone'
         else ' '
      end as Special_Handling 
from ( select string_func(buyer_id) 
        from advance.pledge p) s,
     buyer_info
where..

当然你需要关联这两个表。

Answer 3

我通过使用case语句中的函数来解决问题。案件当STRING_FUNCTION（g.gift_donor_id）喜欢（'％MA％'）那么'MAIL' 当STRING_FUNCTION（g.gift_donor_id）喜欢（'％MA％'）然后'电话' 别的'' 结束为Special_H

感谢所有人的宝贵帮助。

来自选择值的pl / sql案例

3 个答案: