Boolean value

How can I return boolean value to the client.
This doesn't work:
SELECT column1=case when exists (select ...) then TRUE else FALSE end,...
If I return :
SELECT column1=case when exists (select ...) then 1 else 0 end,...
then client gets the int32 value
regards,S> How can I return boolean value to the client.
You can't. There is no Boolean datatype in TSQL. There is a bit datatype, wh
ich is a integer-class
datatype restricted to the values 0, 1 and NULL. Some libraries (ADO etc) wi
ll interpret 1 as TRUE
and 0 as FALSE. If you want to return but, you have to CAST. for example
SELECT case when exists (select ...) then CAST(1 AS bit) else CAST(0 AS bit)
end AS column1
Or you can do the CAST outside the CASE.
--
Tibor Karaszi, SQL Server MVP
http://www.karaszi.com/sqlserver/default.asp
http://www.solidqualitylearning.com/
Blog: http://solidqualitylearning.com/blogs/tibor/
"simon" <simon.zupan@.stud-moderna.si> wrote in message news:O3fYef9oFHA.3256@.tk2msftngp13.p
hx.gbl...
> How can I return boolean value to the client.
> This doesn't work:
> SELECT column1=case when exists (select ...) then TRUE else FALSE end,...
> If I return :
> SELECT column1=case when exists (select ...) then 1 else 0 end,...
> then client gets the int32 value
> regards,S
>|||There's no boolean data type in SQL. I'd suggest using the bit data type.
Like this:
ELECT column1=case when exists (select ...) then cast(1 as bit) else cast(0
as bit) end
ML