Solved

Merge Statment

Posted on 2013-12-13
2
195 Views
Last Modified: 2013-12-15
Hi

I have merge statement like below, for eq. I have 1000 rows in t1 target , 900 rows in t2 the source and all of them in t1 target, I found DateModified has a new date for 900, so far is perfect.
But OUTPUT $action gives me 1000 for Update, why?, it should be 900 .
My script like this

Merge t1 t
Using (
select
* from t2
) As s
ON   s.ID=t.ID  
WHEN MATCHED THEN UPDATE
SET

 t.col1=s.col1,
 t.col2=s.col2,
t.DateModified=GetDate()


WHEN NOT MATCHED BY TARGET THEN  
Insert
(
t.col1,
 t.col2,
t.DateModified
)
Values (
s.col1,
 s.col2,
GetDate()
         )
WHEN NOT MATCHED BY Source THEN UPDATE
SET t.IsActive=0
 OUTPUT $action into @Actions;
0
Comment
Question by:SanPrg
2 Comments
 
LVL 11

Accepted Solution

by:
Angelp1ay earned 500 total points
ID: 39718353
For the 900 that match you're updating from source to target and for the 100 that aren't in the source you're setting t.IsActive=0.
0
 

Author Closing Comment

by:SanPrg
ID: 39720553
Aha, Thanks.
0

Featured Post

VMware Disaster Recovery and Data Protection

In this expert guide, you’ll learn about the components of a Modern Data Center. You will use cases for the value-added capabilities of Veeam®, including combining backup and replication for VMware disaster recovery and using replication for data center migration.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

International Data Corporation (IDC) prognosticates that before the current the year gets over disbursing on IT framework products to be sent in cloud environs will be $37.1B.
I have a large data set and a SSIS package. How can I load this file in multi threading?
Viewers will learn how the fundamental information of how to create a table.
Viewers will learn how to use the SELECT statement in SQL and will be exposed to the many uses the SELECT statement has.

790 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question