Populate ReportViewer with a dynamic stored procedure - sql-server

Question

I need to fill a report with a stored procedure like this one:
CREATE PROCEDURE [dbo].SelectDataToReport
#table_name varchar (25),
#period varchar (25)
AS
BEGIN
DECLARE #mySql nvarchar (MAX)
SET NOCOUNT ON;
SET #mySql = 'SELECT * FROM '+#table_name+' WHERE Period = '+#period+''
EXEC (#mySql)
END
But the report only accepts stored procedure like this one:
CREATE PROCEDURE [dbo].SelectCSAT
#Period varchar (25)
AS
BEGIN
SELECT ID, CSAT, Period
FROM CSAT
WHERE Period = #Period
END
So, I don't know if there's another way to fill the report. The thing is that the database tables and columns will be changed and when the report is generated, the user selects which table and period he wants.
I appreciate your help!

Answer 1

all you have to do is do (if your column counts never vary, you cannot have dynamic columns)
(i do this all the time)
print #mySQL
1) Then take that statement and put it at the top of your stored procedure.
2) comment all your dynamic code out
3) go into ssrs and creating a data set will work.
4) go back into your stored procedure and comment out your sql statement and restore your dynamic code (dont forget to put back exec(#mySql)
for code example do this
CREATE PROCEDURE [dbo].SelectDataToReport
#table_name varchar (25),
#period varchar (25)
AS
BEGIN
SELECT ID , CSAT , Period FROM CSAT WHERE Period = '.'
/*DECLARE #mySql nvarchar (MAX)
SET NOCOUNT ON;
SET #mySql = 'SELECT ID , CSAT , Period FROM '+#table_name+' WHERE Period = '+#period+''
EXEC (#mySql)*/
END