CASE Statement

Hello,
I have a varchar field (ApprovalStatus) that can have 3 results (Approved,
Denied or NULL). On my web page, I have a dropdown box which the user can
select 3 items (Approved, Denied or Pending). When they choose "Pending",
I want to retrieve the fields that are NULL. I've tried the following WHERE
statement, but I can't capture the NULL fields.
@.strParm03 can equal "All, Approved, Denied or NULL)
WHERE
ApprovalStatus LIKE CASE @.strParm03 WHEN 'all' THEN '%'
WHEN 'Pending' THEN NULL
ELSE @.strParm03 END
Any help with this would be appreciated.
Thanks in advance,
sck10
I would use a script like:
[code]
where @.strParm03 = 'All'
or (@.strParm03='Approved' and ApprovalStatus='Approved')
or (@.strParm03='Denied' and ApprovalStatus='Denied')
or (@.strParm03='Pending' and ApprovalStatus is null)
[/code]
or
[code]
where @.strParm03 = 'All'
or (@.strParm03='Approved' and ApprovalStatus='Approved')
or (@.strParm03='Denied' and ApprovalStatus='Denied')
or (@.strParm03='Pending' and isnull(ApprovalStatus,'') ='')
[/code]
HTH,
Cristian Lefter, SQL Server MVP
"sck10" <sck10@.online.nospam> wrote in message
news:Oafy0raXFHA.3032@.TK2MSFTNGP10.phx.gbl...
> Hello,
> I have a varchar field (ApprovalStatus) that can have 3 results (Approved,
> Denied or NULL). On my web page, I have a dropdown box which the user can
> select 3 items (Approved, Denied or Pending). When they choose
> "Pending",
> I want to retrieve the fields that are NULL. I've tried the following
> WHERE
> statement, but I can't capture the NULL fields.
> @.strParm03 can equal "All, Approved, Denied or NULL)
> WHERE
> ApprovalStatus LIKE CASE @.strParm03 WHEN 'all' THEN '%'
> WHEN 'Pending' THEN NULL
> ELSE @.strParm03 END
> Any help with this would be appreciated.
> --
> Thanks in advance,
> sck10
>