How to ROLLBACK TRANSACTION on client level

Suppose i connect to db (SQL Server) from the client (.NET) and call to
some store procedure, in this sp i start transaction (BEGIN TRANSACTION)
and before COMMIT or RALLBACK an error happen that imidietly stop the
execution of stored procedure, In the client i cacth this error but what
about an open transaction ?
HOW to rollback in the client?
Message posted via http://www.webservertalk.comYou can wrap your sp inside another one, get @.@.trancount before calling
second sp and compare after the call.
create procedure dbo.proc1
@.p1 int,
@.p2 datetime
as
set nocount on
declare @.error int
begin transaction
insert into t1 values(@.p1, @.p2)
set @.error = @.@.error
if @.error != 0
begin
rollback transaction
raiserror('whatever 1.', 16, 1)
return 1
end
insert into t2 values(@.p1)
set @.error = @.@.error
if @.error != 0
begin
rollback transaction
raiserror('whatever 2.', 16, 1)
return 1
end
else
commit transaction
return @.@.error
go
create procedure dbo.proc2
@.p1 int,
@.p2 datetime
as
set nocount on
declare @.tc int
declare @.rv int
declare @.error int
set @.tc = @.@.transcount
exec @.rv = dbo.proc1 @.p1, @.p2
set @.error = coalesce(nullif(@.rv, 0), @.@.error)
if @.tc != @.@.trancount
rollback transaction
return @.error
go
Call proc2 from your client app, instead calling proc1.
Implementing Error Handling with Stored Procedures
http://www.sommarskog.se/error-handling-II.html
Error Handling in SQL Server – a Background
http://www.sommarskog.se/error-handling-I.html
AMB
"E B via webservertalk.com" wrote:

> Suppose i connect to db (SQL Server) from the client (.NET) and call to
> some store procedure, in this sp i start transaction (BEGIN TRANSACTION)
> and before COMMIT or RALLBACK an error happen that imidietly stop the
> execution of stored procedure, In the client i cacth this error but what
> about an open transaction ?
> HOW to rollback in the client?
> --
> Message posted via http://www.webservertalk.com
>|||thanks. However i find somthing more intresting, in my app i'm using
ADO.NET so when i close a connection (conection to db) with ADO.NET method
close() it rolls back any pending transactions.
Message posted via http://www.webservertalk.com

How to retrieve Top 3 records in the group level

Hi all,

I have a report which is grouped by a field called R_ID, which gives me a list of records for each R_ID. So here is the thing, I want to get only top 3 records for each R_ID. Is there any way to do this thing in the report level. I tried it from the query level, but the result is not like what I wanted.

Please let me know if some body has any idea.

Thx.

Doing this in a report wouldn′t be the best way as you would get all the data from the server and then only would display a part of it. better filter the data on the server and send only back the appropiate results, then you would have no problem on the client / reporting service. Anway, if you want to do this, you might have a look at the RowNumber() property in Reporting Services. You could set the Visibility of the row to Visible=True if the RowNumber("GroupName") equals or is less than 3 =IIF(Rownumber("GroupName") <= 3;True;False)

Doing this on the server depends on which server version you are using. SQL Server 2005 probably would enable you to use ROW_NUMBER() on the server side. SQL Server 2k does not implement this new function, so you would have to use something else instead.

HTH, Jens K. Suessmeyer.

http://www.sqlserver2005.de