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How Do I Do an SQL Update From a Field on a Table Join?

Posted on 2011-09-08
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Last Modified: 2012-08-13
I need to update tblDatabase status field to 'P' where tblnstance.Server_Name does not exist in my subquery.  I am getting an error on my table joins.

Code Below:

UPDATE tblDatabase SET tblDatabase.status = 'P'
FROM tblApplication INNER JOIN  
tblDBAppRel ON tblApplication.Application_Id = tblDBAppRel.Application_Id INNER JOIN
tblDatabase ON tblDatabase.Database_Id = tblDBAppRel.Database_Id LEFT OUTER JOIN
tblInstance ON tblDatabase.Instance_id = tblInstance.Instance_id
WHERE tblInstance.Server_Name NOT IN
               (SELECT Server_Name
                     FROM #DBWDAIInventory
                     WHERE Server_Name IN (SELECT Server_Name FROM tblMSSQLExtract)
               )
               
How do you write this query correctly?

Thanks,

Dan
0
Comment
Question by:danielolorenz
2 Comments
 
LVL 32

Accepted Solution

by:
ewangoya earned 500 total points
ID: 36507200
Your statement seems a little contradictory

LEFT OUTER JOIN tblInstance ON tblDatabase.Instance_id = tblInstance.Instance_id
WHERE tblInstance.Server_Name NOT IN

try
;with cte as
(
  select tblDatabase.Instance_id, tblDatabase.status
  from tblDatabase 
  INNER JOIN tblDBAppRel ON tblDatabase.Database_Id = tblDBAppRel.Database_Id 
  inner join tblApplication ON tblApplication.Application_Id = tblDBAppRel.Application_Id 
  inner JOIN tblInstance ON tblDatabase.Instance_id = tblInstance.Instance_id
  WHERE tblInstance.Server_Name NOT IN
               (SELECT Server_Name
                     FROM #DBWDAIInventory
                     WHERE Server_Name IN (SELECT Server_Name FROM tblMSSQLExtract)
               )
)

UPDATE cte 
SET [status] = 'P'

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0
 

Author Closing Comment

by:danielolorenz
ID: 36511555
Your solution this time worked great.  With the table join all of the tblDatabase status rows updated successfully and the way I wanted them to.

Thanks for your help.

Dan
0

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