Update multiple entries to different values

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Update multiple entries to different values

Author

Topic

vinylpimp
Starting Member

16 Posts

Posted - 2013-04-30 : 12:53:45

Currently I update one entry at a time

ListingId Price
12345678 0
87654321 1

Update [XXX].[dbo].[listing]
set Price = '0'
where ListingId in ('12345678')

then

Update [XXX].[dbo].[listing]
set Price = '1'
where ListingId in ('87654321')

Is there a way to do both executions with one command?

Many thanks!

MuMu88
Aged Yak Warrior

549 Posts

Posted - 2013-04-30 : 13:56:47

You may want to try something like this:
[CODE]

UPDATE [XXX].[dbo].[listing]
SET Price =
CASE
WHEN ListingId in ('12345678')THEN '0'
WHEN ListingId in ('87654321')THEN '1'
ELSE
Price
END
WHERE ListingId in ('12345678', '87654321');

[/CODE]

webfred
Master Smack Fu Yak Hacker

8781 Posts

Posted - 2013-04-30 : 13:59:30

update listing
set Price = case when listingid = 12345678 then 0 else 1 end
where listingid in(12345678,87654321)

Too old to Rock'n'Roll too young to die.

James K
Master Smack Fu Yak Hacker

3873 Posts

Posted - 2013-04-30 : 14:15:13

To add to what MuMu suggested, the thought is that, if you had a criterion that tells you which ListingID's should get zero's and which should get ones, you can use those in the WHEN expressions. As an example (and I am making up this out of thin air), let us say you had a column called expiry_date. Also, let us assume that if expiry_date is earlier than now, you want to mark listing id as 0, otherwise set it to 1. Then, you would modify MuMu's WHEN expressions like this:

....
      WHEN expiry_date < getdate() THEN '0'
      WHEN expiry_date >= getdate() THEN '1'
....

vinylpimp
Starting Member

16 Posts

Posted - 2013-04-30 : 17:53:20

Thank you so much guys, all scenarios are pretty much covered!

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