Gridview rowupdating error handling

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I had a SQL Server table with many records in it that I needed to clean up.Specifically, I needed to find all duplicate records in the table, but keep the first of each of the duplicate records.Like the Getting Started series, this tutorial series uses the ASP. This lets you combine the advantages of an n-tier approach with the benefits of using a Web Forms control for data access.NET Web Forms model and assumes you know how to work with ASP. The control gives you more flexibility in other ways as well.

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For normal operation, you provide a repository object that works with the Entity Framework.You can also download the application that is created by the complete tutorial series.The Contoso University sample web application demonstrates how to create ASP.I ran this in SQL Server 2008 R2, but this SQL can run in any version of SQL Server 2000 . Serial Num IN( SELECT Serial Num FROM #my Test GROUP BY Serial Num HAVING COUNT(serial Num)These are the results of the SQL to remove duplicates from a table but keep the first of the duplicate records. w=220" data-large-file="https://jwcooney.files.wordpress.com/2011/11/sqlremoveduplicates.png? w=825" alt="These are the results of the SQL to remove duplicates from a table but keep the first of the duplicate records." srcset="https://jwcooney.files.wordpress.com/2011/11/352w, https://jwcooney.files.wordpress.com/2011/11/sqlremoveduplicates.png?-- Create the temporary table CREATE TABLE #my Test( [Id] [int] IDENTITY(1,1) NOT NULL, [Serial Num] [varchar](20) NOT NULL, [Random Info] [varchar](150) NOT NULL ) GO -- Populate the table. Serial Num IN( SELECT Serial Num FROM #my Test GROUP BY Serial Num HAVING COUNT(serial Num)1 ) GO -- Delete the IDs of duplicated records but leave out the first duplicate record DELETE FROM #my Test WHERE ID IN( SELECT Id FROM #my Test tbl Main WHERE tbl Main. " data-medium-file="https://jwcooney.files.wordpress.com/2011/11/sqlremoveduplicates.png? w=110 110w, https://jwcooney.files.wordpress.com/2011/11/sqlremoveduplicates.png?

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