Why is my Classic ASP code returning an empty dataset when executing a stored procedure?

Classical ASP and Stored Procedure Execution: Troubleshooting Empty Result Sets

Executing stored procedures within Classical ASP applications can present challenges. This article addresses a common problem: receiving empty datasets or no response when running a stored procedure in VBScript.

The Problem: Empty Recordsets and Missing Output

The original code attempted to execute the stored procedure "usp_Targets_DataEntry_Display" and populate a recordset. The developer encountered two symptoms: an empty recordset and a lack of output from response.write statements.

Solutions and Debugging Steps

The solution involved several key steps:

1. Stored Procedure Verification: The developer confirmed the existence and accessibility of "usp_Targets_DataEntry_Display" for the executing user.

2. SET NOCOUNT ON: The absence of SET NOCOUNT ON within the stored procedure was identified as a potential culprit. This setting prevents the procedure from returning a count of affected rows, which can prematurely close the recordset.

3. Code Analysis and Correction: A critical difference between the original and corrected code was found. The original code used rs = objCommandSec.Execute, which returns a closed recordset.

4. Correct Recordset Handling: The solution involved using rs.Open objCommandSec instead of rs = objCommandSec.Execute. The Open method correctly opens the recordset, allowing access to the retrieved data.

Revised and Functional Code

The corrected code utilizes the Open method for proper recordset handling:

<code class="language-vbscript">set rs = Server.CreateObject("ADODB.RecordSet")
rs.Open objCommandSec</code>

By incorporating SET NOCOUNT ON in the stored procedure and employing the rs.Open method, the developer successfully retrieved the expected data from the stored procedure. This approach ensures accurate and reliable data retrieval in Classical ASP applications.

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