SQL 通过 SELECT 语句更新多个字段 FROM [英] SQL Update Multiple Fields FROM via a SELECT Statement

问题描述

这有效，但我想删除冗余.有没有办法将更新与单个 select 语句合并，这样我就不必使用 vars?

This works, but i would like to remove the redundancy. Is there a way to merge the update with a single select statement so i don't have to use vars?

    DECLARE
        @OrgAddress1 varchar,
        @OrgAddress2 varchar,
        @OrgCity varchar,
        @OrgState varchar,
        @OrgZip varchar,
        @DestAddress1 varchar,
        @DestAddress2 varchar,
        @DestCity varchar,
        @DestState varchar,
        @DestZip varchar

    SELECT 
        @OrgAddress1    =   OrgAddress,
        @OrgAddress2    =   OrgAddress2,
        @OrgCity        =   OrgCity,
        @OrgState       =   OrgState,
        @OrgZip         =   OrgZip,
        @DestAddress1   =   DestAddress,
        @DestAddress2   =   DestAddress2,
        @DestCity       =   DestCity,
        @DestState      =   DestState,
        @DestZip        =   DestZip
    FROM 
        ProfilerTest.dbo.BookingDetails 
    WHERE 
        MyID=@MyID

    UPDATE SHIPMENT
    SET
        OrgAddress1     =   @OrgAddress1,
        OrgAddress2     =   @OrgAddress2,
        OrgCity         =   @OrgCity,
        OrgState        =   @OrgState,
        OrgZip          =   @OrgZip,
        DestAddress1    =   @DestAddress1,
        DestAddress2    =   @DestAddress2,
        DestCity        =   @DestCity,
        DestState       =   @DestState,
        DestZip         =   @DestZip
    WHERE 
        MyID2=@ MyID2

推荐答案

这样的事情应该可以工作(现在无法测试 - 从内存中):

Something like this should work (can't test it right now - from memory):

UPDATE SHIPMENT
SET
  OrgAddress1     = BD.OrgAddress1,
  OrgAddress2     = BD.OrgAddress2,
  OrgCity         = BD.OrgCity,
  OrgState        = BD.OrgState,
  OrgZip          = BD.OrgZip,
  DestAddress1    = BD.DestAddress1,
  DestAddress2    = BD.DestAddress2,
  DestCity        = BD.DestCity,
  DestState       = BD.DestState,
  DestZip         = BD.DestZip
FROM
   BookingDetails BD
WHERE 
   SHIPMENT.MyID2 = @MyID2
   AND
   BD.MyID = @MyID

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