SQL Update Multiple Fields FROM via a SELECT Statement

user_73332 0
Viewed 133294

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
sql-update stored-procedures sql-server sql
6 Answers

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

Does that help?

user_133020

You can use:

UPDATE s SET
  s.Field1 = q.Field1,
  s.Field2 = q.Field2,
  (list of fields...)
FROM (
  SELECT Field1, Field2, (list of fields...)
  FROM ProfilerTest.dbo.BookingDetails 
  WHERE MyID=@MyID
) q
WHERE s.MyID2=@ MyID2
user_321730

You should be able to do something along the lines of the following

UPDATE s
SET
    OrgAddress1 = bd.OrgAddress1,
    OrgAddress2 = bd.OrgAddress2,
    ...
    DestZip = bd.DestZip
FROM
    Shipment s, ProfilerTest.dbo.BookingDetails bd
WHERE
    bd.MyID = @MyId AND s.MyID2 = @MyID2

FROM statement can be made more optimial (using more specific joins), but the above should do the trick. Also, a nice side benefit to writing it this way, to see a preview of the UPDATE change UPDATE s SET to read SELECT! You will then see that data as it would appear if the update had taken place.

Josh_690770

you can use update from...

something like:

update shipment set.... from shipment inner join ProfilerTest.dbo.BookingDetails on ...

Admin1

I would write it this way

UPDATE s
SET    OrgAddress1 = bd.OrgAddress1,    OrgAddress2 = bd.OrgAddress2,    
     ...    DestZip = bd.DestZip
--select s.OrgAddress1, bd.OrgAddress1, s.OrgAddress2, bd.OrgAddress2, etc 
FROM    Shipment s
JOIN ProfilerTest.dbo.BookingDetails bd on  bd.MyID =s.MyID2
WHERE    bd.MyID = @MyId

This way the join is explicit as implicit joins are a bad thing IMHO. You can run the commented out select (usually I specify the fields I'm updating old and new values next to each other) to make sure that what I am going to update is exactly what I meant to update.

HLGEM_90340
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