December 21, 2007

Find out all the Primary Key and Foreign Key Constraints in a table




To find out all the Primary Key and Foreign Key Constraints in a table using Sql Server 2005, use the INFORMATION_SCHEMA views. These views help retrieve the meta data information in an efficient manner.

Here is a query that demonstrated how to retrieve primary and foreign key for all tables in a database:

USE
SELECT Table_Name as [Table], Column_Name as [Column],
Constraint_Name as [Constraint], Table_Schema as [Schema]
FROM INFORMATION_SCHEMA.KEY_COLUMN_USAGE
ORDER BY [Table], [Column]


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Suprotim Agarwal, ASP.NET Architecture MVP works as an Architect Consultant and provides consultancy on how to design and develop Web applications.

Suprotim is also the founder and primary contributor to DevCurry, DotNetCurry and SQLServerCurry. He has also written an EBook 51 Recipes using jQuery with ASP.NET Controls.

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