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Sunday, April 14, 2024

what is magic table in sql

 what is magic table in sql


Magic tables are temporary tables that SQL Server creates and manages automatically during certain operations, such as INSERT, UPDATE, DELETE, and MERGE. They are not physical tables, but are instead internal logical tables that contain the values affected by these operations.


Magic tables are the temporary logical tables that are created by the SQL server whenever there are insertion or deletion or update( D.M.L) operations. The recently performed operation on the rows gets stored in magic tables automatically. These are not physical table but they are just temporary internal tables.



Why do we use magic table in SQL?

Magic Tables are a powerful feature in SQL that can help you track changes in your database with ease. By providing access to the old and new values of modified rows, Magic Tables eliminate the need for complex trigger code and can help you quickly identify and troubleshoot issues.


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