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 update from select
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peace
Constraint Violating Yak Guru

420 Posts

Posted - 02/06/2014 :  01:40:32  Show Profile  Reply with Quote
is it possible to update from select statement?

i did my script which end out need to update.

select... into #toUpdate from ...

the result from #toUpdate is:

update tableA set columnA = ... where .....

How can i update the #toUpdate
I would like to schedult it instead of doing it manually.

peace
Constraint Violating Yak Guru

420 Posts

Posted - 02/06/2014 :  03:34:19  Show Profile  Reply with Quote
i tried this but it only will select the result instead of update it.

declare @run nvarchar(max)='select * from #toUpdate'
exec(@run)
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peace
Constraint Violating Yak Guru

420 Posts

Posted - 02/06/2014 :  03:36:16  Show Profile  Reply with Quote
i tried this but it only will select the result instead of update it.

declare @run nvarchar(max)='select * from #toUpdate'
exec(@run)
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khtan
In (Som, Ni, Yak)

Singapore
17689 Posts

Posted - 02/06/2014 :  04:12:29  Show Profile  Reply with Quote
can you explain what are you trying to achieve ?


KH
Time is always against us

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peace
Constraint Violating Yak Guru

420 Posts

Posted - 02/06/2014 :  04:14:09  Show Profile  Reply with Quote
would like to schedult to update the records.

update statement will store in a table.

how can i execute update statement to update the records.
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khtan
In (Som, Ni, Yak)

Singapore
17689 Posts

Posted - 02/06/2014 :  05:12:51  Show Profile  Reply with Quote
You will need to use Dynamic SQL

see http://www.sommarskog.se/dynamic_sql.html


KH
Time is always against us

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