UPDATE 쿼리에서 JOIN을 사용하는 방법

Question

조인에서 매우 약해서 조인을 사용하여 다음 쿼리를 어떻게 변환 할 수 있는지 알아야합니다. 이 쿼리는 하위 쿼리와 함께 잘 작동하지만 변환하고 조인을 만드는 데 사용해야합니다.

update dbo.TFIN_Stmt_Line_Item_Dtl 
set Stmt_Line_Item_Dtl_Desc='Changes from Baseline' 
where Stmt_Line_Item_Dtl_Desc='Increased Hours' 
and Stmt_Line_Item_Id 
in (select tmt_Line_Item_Ref_Id 
    from dbo.TFIN_Stmt_Line_Item 
    where Stmt_Line_Item_Type_Id = 
     (select Stmt_Line_Item_Type_Id 
     from dbo.TFIN_Stmt_Line_Item_Type 
     where Stmt_Line_Item_Desc like 'ABOX/RBOX Amendment 18 and 20')) 

신체가 도움이 될 수 있으면 제발.

Answer 1

다음 쿼리는 사용

덕분에 테이블을 업데이트 할 조인하지만 빨리 할 것인지하는 것은두고 볼 일이다.

당신은 우리가

update dbo.TFIN_Stmt_Line_Item_Dtl 
set  Stmt_Line_Item_Dtl_Desc = 'Changes from Baseline' 
from dbo.TFIN_Stmt_Line_Item_Dtl dtl 
     inner join dbo.TFIN_Stmt_Line_Item li on li.tmt_Line_Item_Ref_Id = dtl.Stmt_Line_Item_Id 
     inner join dbo.TFIN_Stmt_Line_Item_Type lit on lit.Stmt_Line_Item_Type_Id = li.Stmt_Line_Item_Type_Id 
where dtl.Stmt_Line_Item_Dtl_Desc='Increased Hours' 
     and lit.Stmt_Line_Item_Desc like 'ABOX/RBOX Amendment 18 and 20' 

Answer 2

update dbo.TFIN_Stmt_Line_Item_Dtl 
set Stmt_Line_Item_Dtl_Desc='Changes from Baseline' 
where Stmt_Line_Item_Dtl_Desc='Increased Hours' 
and Stmt_Line_Item_Id 
in (select tmt_Line_Item_Ref_Id 
    from dbo.TFIN_Stmt_Line_Item Item 
    JOIN dbo.TFIN_Stmt_Line_Item_Type Type 
    on Type.Stmt_Line_Item_Type_Id = Item.Stmt_Line_Item_Type_Id 
    and Type.Stmt_Line_Item_Desc like 'ABOX/RBOX Amendment 18 and 20') 

또는

update dbo.TFIN_Stmt_Line_Item_Dtl 
set Stmt_Line_Item_Dtl_Desc = 'Changes from Baseline' 
from dbo.TFIN_Stmt_Line_Item_Dtl Detail 
JOIN dbo.TFIN_Stmt_Line_Item Item 
on Item.tmt_Line_Item_Ref_Id = Detail.Stmt_Line_Item_Id 
JOIN dbo.TFIN_Stmt_Line_Item_Type Type 
on Type.Stmt_Line_Item_Type_Id = Item.Stmt_Line_Item_Type_Id 
and Type.Stmt_Line_Item_Desc like 'ABOX/RBOX Amendment 18 and 20') 
where Detail.Stmt_Line_Item_Dtl_Desc = 'Increased Hours'