Understanding SQL Server's sysobjects table
December 18, 2006[From Builder.com]
Everything about your SQL Server database is stored in its system tables. I doubt that you spend a lot of time inspecting the system tables since you are too busy with your user tables. However, you may need to do something unusual once in a while, such as list all the triggers in your database. You could inspect your tables one by one, but that can become quite labor intensive if you have 500 tables.
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