Filter by a concatenated column?

I am using a query in a stored procedure, where the user can dictate which
field they want to sort by. That I can do. What I also want to do is
filter out the null values for the selected field, and one of the fields is
a concatenated result. This is the query:
Select LName + ', ' + FName as FullName, City, State, Zip from tblClients
so the stored procedure would be something like this:
CREATE PROCEDURE [dbo].ClientSearch]
@.SearchField as varchar(50)='' AS
Select LName + ', ' + FName as FullName, City, State, Zip from tblClients
where @.SearchField is not null order by @.SearchField
If the user is selecting FullName, I get an error saying the @.SearchField is
an invalid column name -- however this works if other field names are
selected, and it also works if I only want to order by FullName, but not
filter.
Thanks for your help.I hope you are using exec since its a dyamic query.
fullname is a concatenationo of two fields LName + ', ' + FName
therefore LName + ', ' + FName is not null does not work.
make sure that LName is not null and FNAME is not NULL
HTH
Rajesh Peddireddy.
"news.microsoft.com" wrote:

> I am using a query in a stored procedure, where the user can dictate which
> field they want to sort by. That I can do. What I also want to do is
> filter out the null values for the selected field, and one of the fields i
s
> a concatenated result. This is the query:
> Select LName + ', ' + FName as FullName, City, State, Zip from tblClients
> so the stored procedure would be something like this:
> CREATE PROCEDURE [dbo].ClientSearch]
> @.SearchField as varchar(50)='' AS
> Select LName + ', ' + FName as FullName, City, State, Zip from tblClients
> where @.SearchField is not null order by @.SearchField
> If the user is selecting FullName, I get an error saying the @.SearchField
is
> an invalid column name -- however this works if other field names are
> selected, and it also works if I only want to order by FullName, but not
> filter.
> Thanks for your help.
>
>