Thanks for your prompt reply,
I recieve an error:
Msg 402, Level 16, State 1, Procedure CommentsA, Line 7
The data types ntext and varchar are incompatible in the equal to operator.
Thanks
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Question
Query conditional statement
Hi,
I've got myself a little confused,
part of my query is the following:
(isnull(cast(AStatus as varchar),'-')) and
(isnull(cast(AComments as varchar(max)),''))
I trying combine these these so if status is blank but comments is not blank add some text so if:
AStatus = "A" (or anything other than blank/null)
AComments = "Test"
then this should output just the "Test",
AStatus = ""
AComments = "Test"
then this should output just the "temp, Test"
AStatus = ""
AComments = ""
then this should output just the ""
Hope this makes sense and someone can help.
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Answers
Ah, I ignored your casts - they were there for some good reasons, obviously ;-)
To mimic your original formula (I don't know if all casts are necessary, but according to the error message at least AComments needs to be casted):
case
when cast(isnull(AStatus, '') as varchar) = ''
and cast(isnull(AComments, '') as varchar(max)) = '' then ''
when cast(isnull(AStatus, '') as varchar) = '' then 'temp ' + cast(AComments as varchar(max))
else cast(AComments as varchar(max))
end
We could use some better (less redundant) expressions, but you have to change the select then.
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by: QlemoPosted on 2009-11-04 at 14:43:27ID: 25744882
case
when isnull(AStatus, '') = '' and isnull(AComments, '') = '' then ''
when isnull(AStatus, '') = '' then 'temp ' + AComments
else AComments
end