使用ssrs报告配置动态存储过程

Question

I have the following SP

CREATE PROCEDURE Studentrocedure @Type varchar(50)

AS
BEGIN

    If @Type  = 'Student'
    Select * from tblStudent
    Else If  @Type  = 'Fee'
    Select * from tblFee
    End
END

The problem I'm having is that when I add a DataSet for a SSRS report, it pulls no fields/columns in the Fields section.

How can I resolve that?

Answer 1

• Syntax error near the ELSE part, it should be ELSE IF .
• Also no need of the extra End in the query
• Instead of * explicitly mention the column names

CREATE PROCEDURE Studentrocedure
    @Type varchar(50)
AS
BEGIN

    IF @Type  = 'Student'
        Select * from tblStudent
    ELSE IF  @Type  = 'Fee' 
        Select * from tblFee
END

Answer 2

You really can't resolve this assuming that your select * queries return different result sets. A dataset requires a deterministic set of fields. You can not dynamically determine the fields that will be included in a dataset.

If you are confident that your dynamically selected results will always and forever return the same set of columns regardless of the input given then you can explore using FMTONLY option.

Check out this link