How to get affected rows in ASP Classic JScript? - asp-classic

Question

I have the following script in ASP Classic:
<%# LANGUAGE=Javascript%>
<%
var dataConn = Server.CreateObject('ADODB.Connection');
dataConn.Open(connectionString);
var rowsAffected;
dataConn.Execute(command, rowsAffected);
Response.Write(rowsAffected);
dataConn.Close();
%>
When executing the script rowsAffected is undefined. How to get the affected rows?

Answer 1

After searching the web I found an answer that JScript does not support ByRef variables to get the affected rows. It only works in VBScript.
So I use the following script to get the affected rows from my stored procedure:
<!--METADATA TYPE="TypeLib" NAME="Microsoft ActiveX Data Objects 2.6 Library" UUID="{00000206-0000-0010-8000-00AA006D2EA4}" VERSION="2.6" -->
<%# LANGUAGE=JScript%>
<%
var cn = Server.CreateObject('ADODB.Connection');
var cs = '...';
cn.Open(cs); cn.CursorLocation = adUseClient;
var cmd = Server.CreateObject("ADODB.Command");
cmd.ActiveConnection = cn;
cmd.CommandText = '...';
cmd.CommandType = adCmdStoredProc;
cmd.Parameters.Append(cmd.CreateParameter('#ID', adInteger, adParamInput, 4, id));
cmd.Parameters.Append(cmd.CreateParameter('#RowCount', adInteger, adParamOutput, 4));
cmd.Execute(adExecuteNoRecords);
Response.Write(cmd.Parameters('#RowCount').Value);
cn.Close();
%>
And you need a stored procedure like this:
CREATE PROC dbo.<StoredProcedure> #ID int, #RowCount int = 0 output AS BEGIN
[...]
SET #RowCount = ##rowcount;
END