Using a stored procedure containing dynamic SQL to create a report in C# (Report viewer)

问题

I have a SQL Server stored procedure that I want to use to create a report in my application (c#).

Because the table in the procedure is dynamically created I am having trouble using it to create a report.

How can I use this procedure to create a report in my application?

I am using VS2010, SQL Server 2008 R2

I created a dataset in VS but not sure how to use it from there. The report wizard cannot use the dataset I created.

I gave thought to somehow using this to create a view and then generate a dataset from that but could not figure that out.

I hope I have provided enough info for someone to give me some direction.

PROCEDURE sp_RD_Reporting_View_ExportedData_For_Period    
(   
@StartDate date,   
@EndDate date   
)  
AS  
CREATE TABLE #tmp  
(  
    StartDate DATETIME,  
    EndDate DATETIME,  
    FomatedDate VARCHAR(20)  
)  
--Calculate the date ranges   
;WITH Nbrs ( n ) AS (  
        SELECT 0 UNION ALL  
        SELECT 1+n FROM Nbrs WHERE n < 6 )  
INSERT INTO #tmp  
SELECT  
    DATEADD(DAY,-n,@StartDate),  
    DATEADD(DAY,-n,@EndDate),  
    convert(varchar, DATEADD(DAY,-n,@EndDate), 110)  
FROM  
    Nbrs  
ORDER BY  
    -n  
--The date columns for the pivot  
DECLARE @cols VARCHAR(MAX)  
SELECT  @cols = COALESCE(@cols + ','+QUOTENAME(FomatedDate),  
                     QUOTENAME(FomatedDate))    
FROM   
    #tmp  
--Declaring some dynamic sql and executing it  
DECLARE @query NVARCHAR(4000)=  
N'SELECT  
    *  
FROM  
(  
    SELECT   ExportData.EmployeeID AS EmpID,  
            ABRAempInfo.EmpFullName AS Name,  
            ExportData.PayType AS PayType,   
            tmp.FomatedDate,   
            SUM(ExportData.Quantity) AS Hours   
    FROM ExportData   
    JOIN ABRAempInfo    
    ON ExportData.EmployeeID = ABRAempInfo.EmpID  
    JOIN #tmp AS tmp  
    ON ExportData.ChargeDate = tmp.FomatedDate  
    WHERE ChargeDate BETWEEN tmp.StartDate AND tmp.EndDate  
    GROUP BY ExportData.EmployeeID, ExportData.PayType, tmp.FomatedDate,   ABRAempInfo.EmpFullName  

) AS p  
PIVOT  
(  
    SUM(Hours)  
    FOR FomatedDate IN ('+@cols+')  
) AS pvt'  

EXECUTE(@query)  
DROP TABLE #tmp  

回答1:

I have run into something that I think is similar - trying to get Linq to Sql to build me a result set from a stored proc that uses Dynamic SQL to select results. Here is how I solved my issue... it is very much a work around, but you won't really be able to get a wizard to work off a dynamic result set. Also note, that if your dynamic sql returns differing columns, it is not likely to work.

1. Run your dynamic statement and output only the SQL statement (print the statement, don't execute it)
2. Modify your stored procedure to return output via the sql statement you got from #1
3. You now have a standard stored procedure - use this to build your report from.
4. After your report is tested and working ok, Modify your stored procedure again and plug the dynamic sql back in.

来源：https://stackoverflow.com/questions/13464503/using-a-stored-procedure-containing-dynamic-sql-to-create-a-report-in-c-sharp-r