Solved

Execute stored procedure in mysql database

Posted on 2016-09-07
2
37 Views
Last Modified: 2016-09-07
I have setup a mysql database that successfully connects and populates datagrids in my VS2015-c# application under development.
I have created a stored procedure:

CREATE DEFINER=`glsinger684`@`%` PROCEDURE `create_co_record`(IN `PrincipalID` VARCHAR(50))
      LANGUAGE SQL
      NOT DETERMINISTIC
      CONTAINS SQL
      SQL SECURITY DEFINER
      COMMENT 'Creates new company record with PrincipalID'
BEGIN
insert into company_info (PrincipalID)
values (PrincipalID);
END

I can successfully execute the stored procedure from a query using the management utility.
Next to test from my asp.net app I have the following code linked to a button:

using System;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Data;
using System.Configuration;
using Microsoft.AspNet.Identity;
using Microsoft.AspNet.Identity.Owin;
using Owin;
using System.Web.UI.WebControls;
using MySql.Data.MySqlClient;

namespace EstimatingSheet_080916.Account
>
>
>
     protected void btnAddCo_Click(object sender, EventArgs e)
        {
            string conn = "server=mysqlcluster8.registeredsite.com;user id=glsinger684;persistsecurityinfo=True;password=<mypassword>;database=estimating";
            MySqlConnection sql_conn = new MySqlConnection(conn);

            MySqlCommand cmd = new MySqlCommand();
            cmd.Connection = sql_conn;
            sql_conn.Open();
            cmd.CommandType = CommandType.StoredProcedure;
            cmd.CommandText = "CALL create_co_record (PrincipalID)";          
            cmd.Parameters.AddWithValue("PrincipalID", "TESTTEST");
            cmd.Parameters["PrincipalID"].Direction = ParameterDirection.Input;

When I run the app and hit the button nothing appears to happen.  I get no errors, but the desired effect of the SP does not occur.  Since the datagrids populate I don't see why this would be a permissions issue, but in any event any research on granting permissions that I have tried does not work.
Any suggestions would be much appreciated.
0
Comment
Question by:GregorySinger
2 Comments
 
LVL 29

Accepted Solution

by:
Olaf Doschke earned 500 total points
ID: 41788469
Is that all code? Where is cmd.ExecuteNonQuery()? You prepare everything, but don't execute, unless you just didn't posted that line. It's explains in a very simple way, why nothing would happen, though.

I think you also need a syntax with @param, @ prefixed to variable names...

...
            MySqlCommand cmd = new MySqlCommand();
            cmd.Connection = sql_conn;
            sql_conn.Open();
            cmd.CommandType = CommandType.StoredProcedure;
            cmd.CommandText = "CALL create_co_record (@PrincipalID)";           
            cmd.Parameters.AddWithValue("@PrincipalID", "TESTTEST");
            cmd.Parameters["@PrincipalID"].Direction = ParameterDirection.Input;
            cmd.ExecuteNonQuery();

Open in new window


Bye, Olaf.
0
 

Author Closing Comment

by:GregorySinger
ID: 41788944
Olaf,
You hit the nail on the head.  After a few minor modifications to other code lines, it worked just fine.
Thanks again!

Greg
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Does the idea of dealing with bits scare or confuse you? Does it seem like a waste of time in an age where we all have terabytes of storage? If so, you're missing out on one of the core tools in every professional programmer's toolbox. Learn how to …
Load balancing is the method of dividing the total amount of work performed by one computer between two or more computers. Its aim is to get more work done in the same amount of time, ensuring that all the users get served faster.
This Micro Tutorial demonstrates using Microsoft Excel pivot tables, how to reverse engineer competitors' marketing strategies through backlinks.
A short tutorial showing how to set up an email signature in Outlook on the Web (previously known as OWA). For free email signatures designs, visit https://www.mail-signatures.com/articles/signature-templates/?sts=6651 If you want to manage em…

808 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question