How to simulate Nothing from a deep link

Hello-

I'm working on an app that will create an HTTP connection to the SSRS server to gather a PDF generated by SSRS and place it on the LAN. looks something like this :

http://server/ReportServer?%2fDEV%2frpt_Sheet&rs%3aCommand=Render&rc:Toolbar=false&userID=NULL&StoreID=23&rs:Format=PDF

We have a few reports where 1 or more parameters can be null, but I'm having one heck of a time trying get this to work with a null value. Does anyone know what value is actually passed to SSRS when a parameter is NULL?

I have tried Nothing, but to no avail.

Thanks in adavance,

Tristan

Do not include that parameter in the link and set its default value as null or send something like this:

parameter name = "param1"

&param1%3aisnull=True

http://reportserver/?%2fReport1Test&param1%3aisnull=True&rs%3aParameterLanguage=&rc%3aParameters=Collapsed

Maciej

How to simulate an array in SQL Server

Just thought some might be interested in how to identify individual
items in an 'array' by declaring a local variable as table
----
declare @.MyTable table (MyRowID int identity, MyData varchar(255))
declare @.MyCurrentRow as int
declare @.MyRowCount as int
insert into @.MyTable select Name from sysobjects -- (or whatever)
set @.MyRowCount = @.@.RowCount
-- @.@.Rowcount hold the count of the last table in these cases anyway
-- then you can use statement to access the nth. row in the 'array'
select MyData from @.MyTable where MyRowID = 5 -- as an example
--
-- or step through the table using @.MyCurrentRow
Set @.MyCurrentRow = 1
while @.MyCurrentRow < @.MyRowCount +1
Begin
Select MyData from @.MyTable where MyRowID = @.MyCurrentRow
set @.MyCurrentRow = @.MyCurrentRow + 1
Continue
end
Just thought it might help. It isn't rocket science but I saw a few
with problems so thought I'd post.
I needed it to obtain individual values from a table and use those
values to call a stored procedure repeatedly.
CheersSee if these help:
http://www.aspfaq.com/show.asp?id=2248 Arrays & Lists
http://www.sommarskog.se/dynamic_sql.html Dynamic SQL
http://www.users.drew.edu/skass/sql...bleProc.sql.txt List to
Table script
Andrew J. Kelly SQL MVP
<mal_k100@.hotmail.com> wrote in message
news:1125573743.271138.167070@.o13g2000cwo.googlegroups.com...
> Just thought some might be interested in how to identify individual
> items in an 'array' by declaring a local variable as table
> ----
> declare @.MyTable table (MyRowID int identity, MyData varchar(255))
> declare @.MyCurrentRow as int
> declare @.MyRowCount as int
> insert into @.MyTable select Name from sysobjects -- (or whatever)
> set @.MyRowCount = @.@.RowCount
> -- @.@.Rowcount hold the count of the last table in these cases anyway
> -- then you can use statement to access the nth. row in the 'array'
> select MyData from @.MyTable where MyRowID = 5 -- as an example
> --
> -- or step through the table using @.MyCurrentRow
> Set @.MyCurrentRow = 1
> while @.MyCurrentRow < @.MyRowCount +1
> Begin
> Select MyData from @.MyTable where MyRowID = @.MyCurrentRow
> set @.MyCurrentRow = @.MyCurrentRow + 1
> Continue
> end
> Just thought it might help. It isn't rocket science but I saw a few
> with problems so thought I'd post.
> I needed it to obtain individual values from a table and use those
> values to call a stored procedure repeatedly.
> Cheers
>sql

how to simulate a block

could someone provide some simple code to simulate a block. I want to test
a blocking script I want to implement on prod.
TIA
C
Execute this on one connection:
create table ##foo (SomeColumn int)
go
begin transaction
insert into ##foo (SomeColumn) values (1)
waitfor delay '0:00:40' /* hold the transaction open for 40 seconds */
go
commit transaction
/*****************************/
Execute this on another connection:
select * from ##foo
Keith
"CD" <mcdye1@.hotmail.REMOVETHIS.com> wrote in message
news:%23PbFfLMeFHA.1920@.tk2msftngp13.phx.gbl...
> could someone provide some simple code to simulate a block. I want to
> test a blocking script I want to implement on prod.
> TIA
> C
>
|||Try,
-- conn 1
use northwind
go
begin transaction
update orders
set orderdate = orderdate
-- conn 2
use northwind
go
select * from orders
Connection 2 will be blocked until you commit or rollback the transaction in
connection 1.
AMB
"CD" wrote:

> could someone provide some simple code to simulate a block. I want to test
> a blocking script I want to implement on prod.
> TIA
> C
>
>
|||Look at tablockx holdlock keywords
these will hold locks on tables with in a block of code...
i.e.
create procedure ...
select @.nextid = id from foo with (tablockx holdlock)
/* tablockx forces an exclusive table lock
tablock to do a non-exclusive lock
holdlock tells SQL Server to hold locks for duration of the transaction */
update foo set [id] = [id]+ @.block
return @.nextid
...
this will prevent n users from getting the same id
GO
"CD" wrote:

> could someone provide some simple code to simulate a block. I want to test
> a blocking script I want to implement on prod.
> TIA
> C
>
>

how to simulate a block

could someone provide some simple code to simulate a block. I want to test
a blocking script I want to implement on prod.
TIA
CExecute this on one connection:
create table ##foo (SomeColumn int)
go
begin transaction
insert into ##foo (SomeColumn) values (1)
waitfor delay '0:00:40' /* hold the transaction open for 40 seconds */
go
commit transaction
/*****************************/
Execute this on another connection:
select * from ##foo
Keith
"CD" <mcdye1@.hotmail.REMOVETHIS.com> wrote in message
news:%23PbFfLMeFHA.1920@.tk2msftngp13.phx.gbl...
> could someone provide some simple code to simulate a block. I want to
> test a blocking script I want to implement on prod.
> TIA
> C
>|||Try,
-- conn 1
use northwind
go
begin transaction
update orders
set orderdate = orderdate
-- conn 2
use northwind
go
select * from orders
Connection 2 will be blocked until you commit or rollback the transaction in
connection 1.
AMB
"CD" wrote:

> could someone provide some simple code to simulate a block. I want to tes
t
> a blocking script I want to implement on prod.
> TIA
> C
>
>|||Look at tablockx holdlock keywords
these will hold locks on tables with in a block of code...
i.e.
create procedure ...
select @.nextid = id from foo with (tablockx holdlock)
/* tablockx forces an exclusive table lock
tablock to do a non-exclusive lock
holdlock tells SQL Server to hold locks for duration of the transaction */
update foo set [id] = [id]+ @.block
return @.nextid
...
this will prevent n users from getting the same id
GO
"CD" wrote:

> could someone provide some simple code to simulate a block. I want to tes
t
> a blocking script I want to implement on prod.
> TIA
> C
>
>sql

how to simulate a block

could someone provide some simple code to simulate a block. I want to test
a blocking script I want to implement on prod.
TIA
CExecute this on one connection:
create table ##foo (SomeColumn int)
go
begin transaction
insert into ##foo (SomeColumn) values (1)
waitfor delay '0:00:40' /* hold the transaction open for 40 seconds */
go
commit transaction
/*****************************/
Execute this on another connection:
select * from ##foo
Keith
"CD" <mcdye1@.hotmail.REMOVETHIS.com> wrote in message
news:%23PbFfLMeFHA.1920@.tk2msftngp13.phx.gbl...
> could someone provide some simple code to simulate a block. I want to
> test a blocking script I want to implement on prod.
> TIA
> C
>|||Try,
-- conn 1
use northwind
go
begin transaction
update orders
set orderdate = orderdate
-- conn 2
use northwind
go
select * from orders
Connection 2 will be blocked until you commit or rollback the transaction in
connection 1.
AMB
"CD" wrote:
> could someone provide some simple code to simulate a block. I want to test
> a blocking script I want to implement on prod.
> TIA
> C
>
>|||Look at tablockx holdlock keywords
these will hold locks on tables with in a block of code...
i.e.
create procedure ...
select @.nextid = id from foo with (tablockx holdlock)
/* tablockx forces an exclusive table lock
tablock to do a non-exclusive lock
holdlock tells SQL Server to hold locks for duration of the transaction */
update foo set [id] = [id]+ @.block
return @.nextid
...
this will prevent n users from getting the same id
GO
"CD" wrote:
> could someone provide some simple code to simulate a block. I want to test
> a blocking script I want to implement on prod.
> TIA
> C
>
>