两个相关的查询需要是一个

Question

我知道这是一个基本的东西，但SQL是我的一个严重弱点......

我有以下查询（＆＃34; query1＆＃34;）

select 
    SC.statues, SC_some_real_code 
from 
    [corpdb_gs].[dbo].[Simple_Codes] SC
inner join
    [corpdb_gs].[dbo].[real_simple_essentials] RSE
on 
    SC.statues = RSE.se_statutes 
AND 
    SC.some_real_code = RSE.se_statutes_reason  

我只需要返回表[db2].[dbo].[statusYo]中的行

    statusYo.code = "query1".SC.statues 
AND 
    statusYo.reason = "query1".SC.some_real_code

帮助？

Answer 1

    select * from [db2].[dbo].[statusYo] query2
    inner join 
   (select 
        SC.statues as statues , SC.some_real_code as some_real_code   
    from 
        [corpdb_gs].[dbo].[Simple_Codes] SC
    inner join
        [corpdb_gs].[dbo].[real_simple_essentials] RSE
    on 
        SC.statues = RSE.se_statutes 
    AND 
        SC.some_real_code = RSE.se_statutes_reason) query1  
on query1.statues =query2.code 
and query1.some_real_code=query2.reason 

这对你有用......