Question

I’m getting the error when accessing a Stored Procedure in SQL Server

Server Error in '/' Application. Procedure or function 'ColumnSeek' expects parameter '@template', which was not supplied.  

This is happening when I call a Stored Procedure with a parameter through .net’s data connection to sql (System.data.SqlClient), even though I am supplying the parameter. Here is my code.

SqlConnection sqlConn = new SqlConnection(connPath); sqlConn.Open();  //METADATA RETRIEVAL string sqlCommString = 'QCApp.dbo.ColumnSeek'; SqlCommand metaDataComm = new SqlCommand(sqlCommString, sqlConn); metaDataComm.CommandType = CommandType.StoredProcedure; SqlParameter sp = metaDataComm.Parameters.Add('@template',SqlDbType.VarChar,50); sp.Value = Template;  SqlDataReader metadr = metaDataComm.ExecuteReader(); 

And my Stored Procedure is:

   USE [QCApp]    GO    SET ANSI_NULLS ON    GO    SET QUOTED_IDENTIFIER ON    GO     ALTER PROCEDURE [dbo].[ColumnSeek]         @template varchar(50)    AS    EXEC('SELECT Column_Name, Data_Type     FROM [QCApp].[INFORMATION_SCHEMA].[COLUMNS]     WHERE TABLE_NAME = ' + @template); 

I’m trying to figure out what I’m doing wrong here.

Edit: As it turns out, Template was null because I was getting its value from a parameter passed through the URL and I screwed up the url param passing (I was using @ for and instead of &)

Answer 1

I would check my application code and see what value you are setting @template to. I suspect it is null and therein lies the problem.