Solved

How to sort and compare data from a SQL and an Access database

Posted on 2009-04-07
1
281 Views
Last Modified: 2013-12-17
I have a datagridview in my C#.net application that pulls data from a SQL database (id,name,details). I have functionality in my program that flags a record when I click on a row. When a row is flagged it stores the ID of the flagged row in my Access database. I need to be able to sort the grid listing those IDs that are stored in my access database by clicking on a button . The problem is I am working with data from a sql and access database. I need a mechanism that compares the ID in the access database with the data pulled from the sql database and list the records of the IDs that are stored in the Access database first. So the data is coming from the sql server but the IDs that are in the database are listed first
0
Comment
Question by:wademi
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
1 Comment
 
LVL 15

Accepted Solution

by:
oobayly earned 500 total points
ID: 24089021
You could use the merge method on the underlying datatables.
Assuming you retireve data from both SQL server & Access into two datatables, add a PK to each table, and then merge the Access table into the SQL Server table.

When you flag a record, again merge the Access table into the SQL Server table so that it's up to date.
    Random rand = new Random(1);
 
    DataTable sqlTable = new DataTable();
    sqlTable.Columns.Add("ID", typeof(int));
    sqlTable.Columns.Add("Date", typeof(DateTime));
    sqlTable.PrimaryKey = new DataColumn[]{sqlTable.Columns["ID"]};
 
    DataTable accessTable = new DataTable();
    accessTable.Columns.Add("ID", typeof(int));
    accessTable.Columns.Add("Flag", typeof(bool));
    accessTable.PrimaryKey = new DataColumn[] { accessTable.Columns["ID"] };
 
    for (int i = 0; i < 10; i++) {
      sqlTable.Rows.Add(i, DateTime.Now.AddMilliseconds(rand.Next(int.MinValue, int.MaxValue)));
    }
    sqlTable.AcceptChanges();
 
    for (int i = 0; i < 10; i++) {
      accessTable.Rows.Add(i, rand.Next(0, 2) == 0);
    }
    accessTable.AcceptChanges();
 
    sqlTable.Merge(accessTable);

Open in new window

0

Featured Post

Forrester Webinar: xMatters Delivers 261% ROI

Guest speaker Dean Davison, Forrester Principal Consultant, explains how a Fortune 500 communication company using xMatters found these results: Achieved a 261% ROI, Experienced $753,280 in net present value benefits over 3 years and Reduced MTTR by 91% for tier 1 incidents.

Question has a verified solution.

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

Suggested Solutions

What my article will show is if you ever had to do processing to a listbox without being able to just select all the items in it. My software Visual Studio 2008 crystal report v11 My issue was I wanted to add crystal report to a form and show…
This document covers how to connect to SQL Server and browse its contents.  It is meant for those new to Visual Studio and/or working with Microsoft SQL Server.  It is not a guide to building SQL Server database connections in your code.  This is mo…
This is Part 3 in a 3-part series on Experts Exchange to discuss error handling in VBA code written for Excel. Part 1 of this series discussed basic error handling code using VBA. http://www.experts-exchange.com/videos/1478/Excel-Error-Handlin…

733 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