Case statement using multiple update queries

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Hello,

In sql server i need to update a single column based on the condition using
case statement..
I need to concat the reason to my reason column every time when the condition fails

I tried like this....

update tbltemp set reason=
case
when len(abc)>17 then reason.concat(reason,'abc not valid')
when len(def)>100 then reason.concat(reason,'def not valid')
else ''
end

at the end i need to display reason like 'abc not valid,def not valid'
if the two conditions fails.

For the above query iam getting error like this:

Cannot find either column "reason" or the user-defined function or aggregate "reason.concat", or the name is ambiguous.
Thanks for any help in advance..

Posted 5-Dec-13 19:08pm

njdcjk

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Comments

PIEBALDconsult 6-Dec-13 1:21am

You probably need to test for >100 before testing for >17 .
And you can nest CASEs if you need to.
And use s=s+t . In fact, try s = s + CASE ... END

njdcjk 6-Dec-13 8:21am

can u explain in detail

2 solutions

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Ganesh Raja · Answer 1 · 2013-12-05T19:28:00

Solution 1

Try this below query.

SQL

  update tbltemp  set reason=
case 
when len(abc)>17 then reason+'abc not valid'
when len(def)>100 then reason+'def not valid'
else '' 
end

Posted 5-Dec-13 19:28pm

Ganesh Raja

Comments

njdcjk 6-Dec-13 6:33am

I tried but it's not working..reason is still null only

Ganesh Raja 6-Dec-13 7:02am

i have verified and this working fine when that particular condition (Length) is satisfied.

njdcjk 6-Dec-13 8:08am

I have tried again.But still it's not working..
It will work when something is there in remarks column.If remarks column is null it will not work..

Rakesh Meel · Answer 2 · 2013-12-05T19:34:00

Solution 2

visit here for example to understand...

publib.boulder.ibm.com/infocenter/idshelp/v10/index.jsp?topic=/com.ibm.sqlt.doc/sqltmst148.htm

Posted 5-Dec-13 19:34pm

Rakesh Meel

Updated 5-Dec-13 19:35pm

v2