SSRS. Not passing fields/parameters to report when stored procedure keeps parameters inside IF statement

Question

So what I mean:
I have stored procedure like this:
CREATE PROCEDURE sp_Example
@param1 NVARCHAR(20) = '',
@param2 DATE = ''
AS
BEGIN
IF (SELECT COUNT(*) FROM Table1 WHERE (Name = @param1 OR @param1 = '') AND (StartDate = @param2 OR @param2 = '')) > 2
BEGIN
SELECT Name, Date, Price, Etc
FROM Table2
WHERE (Name = @param1 OR @param1 = '') AND (StartDate = @param2 OR @param2 = '')
END
IF (SELECT COUNT(*) FROM Table1 WHERE (Name = @param1 OR @param1 = '') AND (StartDate = @param2 OR @param2 = '')) < 2
BEGIN
SELECT Name, Date, Price, Etc
FROM Table3
WHERE (Name = @param1 OR @param1 = '') AND (StartDate = @param2 OR @param2 = '')
END
END
So in stored procedure are some input parameters and they are passed into IF statement.
If I use this stored procedure as report's dataset (Microsoft Visual Studio 2013) in following:
Add
Dataset > Query
Type: Stored Procedure > sp_Example It
do NOT get any fields, but get parameters
If I use this stored procedure in following:
Add
Dataset > Query
Type: Text > EXECUTE
sp_Example It get all required fields, but do NOT get parameters
Of course If I add manually parameters or fields It not working.
If I change IF statement
in stored procedure something like:
IF (1 < 3)
BEGIN
SELECT Name, Date, Price, Etc
FROM Table3
WHERE (Name = @param1 OR @param1 = '') AND (StartDate = @param2 OR @param2 = '')
END
It normally working in report (getting all fields and parameters). So problem is that I pass parameters to IF statement.
Have you any ideas how to pass parameters to IF statement
and get It correctly working on report?

Answer 1

Hi Stanisolvas,
Per my understanding that you are experending some issue when using the stored procedure to create the dataset, you can't get the fields to display under the dataset, right?
I have tested on my local environment with the same script as your and can't reproduce the issue, Please try to check and provide more details information according to below points:
What do you mean of not get any fields, Is that mean no table header along with the value will display? If you got any error message, please provide it.
Did you use any temp table in the stored procedure, if so, the issue can be caused by the temp table you are using, please don't use temp table in it which will cause no fields display.
If you use the second method to execute the procedure, please check to make sure you have added the script like below to make the parameters display in the report:
exec sp_Example @Param1=@Param1,@Param2=@Param2
Please execute the stored procedure in the SQL Server Management Studio like below to see if the stored procedure will works fine:
exec sp_Example @Param1='Test1',@Param2='2014-10-15'
If this work fine in the management studio, please try to create an new report to re-add this procedure.
If you still have any problem, please feel free to ask.
Regards,
Vicky Liu
Vicky Liu
TechNet Community Support