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Introduction:
With the integration of the CLR with SQL Server 2005, we can create database objects using modern object-oriented languages like VB.NET and C#.
This article is trying to explain the simple and required steps that are require starting the creation of Manage User Defined Functions using C#.
The Project:
We will create a Visual Studio 2005 database project for the managed Trigger.
Creating the Database project:
Open Microsoft Visual Studio 2005 and create a SQL Server Project.
File->New->Project->Database
Adding a database reference:
Now it will ask for a database reference. Add one.
Add a User Defined Function:
Right click on the Project and add a User Defined Function.
The file Function1.cs:
Past following lines to the file Function1.cs.
using System;
using System.Data;
using System.Data.SqlClient;
using System.Data.SqlTypes;
using Microsoft.SqlServer.Server;
public partial class UserDefinedFunctions
{
[Microsoft.SqlServer.Server.SqlFunction]
public static SqlInt64 Function1(SqlInt32 a, SqlInt32 b)
{
// Put your code here
// return new SqlString("Hello");
return (a + b);
}
};
Deploy the User Defined Function:
Build the project and then deploy it.
Test the Trigger:
Make sure the clr is enabled with your SQL Server by running the following sql.
sp_configure 'clr enabled', 1;
GO
RECONFIGURE;
GO
Now execute the function with two integer parameter.
Function Defined!!!!
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Laishram Priyokumar
MCSD .NET and Brainbench Advance Java certified Senior Engineer. Working with Cincom System India Pvt. Ltd and well experienced in .NET and J2EE technologies with strong RDBMS knowledge.
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