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Linked Server Update query running very slow

Last Modified: 2012-08-13
I have a 2005 sql server which is linked to 2000 sql server. I am trying to run an update query on the 2000 database. it does get updated but it takes a long time to run even one single row. I have defined a primary key on the destination table. I checked the collation too. I have the same problem as this post, only that the solutions there is not solving mine.


I had the same error. Now I am able to get rid of the error, but the query to update a single row is 4 minutes.

declare @tblSource table
(intapplicantid int primary key,
txtstatus varchar(200))

insert into @tblSource
select intapplicantid, txtstatus from tblapplicants
where intapplicantid = 124963

update dest
set dest.txtstatus = src.txtstatus
from @tblSource src
inner join
[mssql.new-hire1.com].[newhirever5].[newhirever5].[tblapplicants] dest
      on dest.intapplicantid = src.intapplicantid
collate SQL_Latin1_General_CP1_CI_AS

I am using temp table just to check the performance.

Is anything obvious in the above query? Please help!
Watch Question


Only difference between the source and destination table is :

The destination table does not have identity field set to yes where as source has yes. I cannot really set the identity field to yes in the destination - this will not let me copy the intapplicantid field from source to destination.
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