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Help Needed

Diyas

SSCarpal Tunnel

Points: 4851
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September 7, 2012 at 5:38 am

#393131

Hi,
we are having one table (AA) with 3 columns
Id,Polcinumber,date
1,s1234,04/09/2012
2,s2345,05/06/2012
we are having another table(BB) having 2 cloumns
Id,Policynumber,date
1,s71234, currentdate
we are inserting the records from BB to AA table.in AA table the values of Polcynumbers are already existing
i want write the query to replace the oldpolicynumbers
can any one help on this

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Lowell SSC Guru Points: 323504 More actions · Answer 1

assuming the ID is the join criteria between the two tables, this will do it:

UPDATE AA

SET AA.Polcinumber = BB.Policynumber

FROM BB

WHERE AA.ID = BB.ID

AND AA.Polcinumber <> BB.Policynumber

Lowell

--help us help you! If you post a question, make sure you include a CREATE TABLE... statement and INSERT INTO... statement into that table to give the volunteers here representative data. with your description of the problem, we can provide a tested, verifiable solution to your question! asking the question the right way gets you a tested answer the fastest way possible!

Diyas SSCarpal Tunnel Points: 4851 More actions · Answer 2

Thanks Lowel,

how to insert the currentdate into AA table with new policy number

Lowell SSC Guru Points: 323504 More actions · Answer 3

Div Goud (9/7/2012)
Thanks Lowel,
how to insert the currentdate into AA table with new policy number

just expand the number of columns being updated;

...

SET AA.Polcinumber = BB.Policynumber,

Column2 = GetDate(), --a function fromt eh server

Column3 = 'Approved', --a static value

Column4 = BB.SomeOtherColumn -- a value in the other table

Lowell

--help us help you! If you post a question, make sure you include a CREATE TABLE... statement and INSERT INTO... statement into that table to give the volunteers here representative data. with your description of the problem, we can provide a tested, verifiable solution to your question! asking the question the right way gets you a tested answer the fastest way possible!

ChrisM@Work SSC Guru Points: 186127 More actions · Answer 4

DELETE aa

FROM aa

INNER JOIN bb

ON bb.ID = aa.ID

SET IDENTITY_INSERT aa ON

INSERT INTO aa (Id,Policynumber,date)

SELECT Id,Policynumber,date

FROM bb

SET IDENTITY_INSERT aa OFF

^{“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw}

For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
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