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MS SQL Interview Questions and Answers

Question - What are Magic Tables in SQL Server?

Answer -

The MAGIC tables are automatically created and dropped, in case you use TRIGGERS. SQL Server has two magic tables named, INSERTED and DELETED

These are maintained by the SQL server for their Internal processing. When we use update insert or delete on tables these magic tables are used. These are not physical tables but are Internal tables. Whenever we use insert statement is fired the Inserted table is populated with newly inserted Row and whenever delete statement is fired the Deleted table is populated with the deleted row. 

But in case of update statement is fired both Inserted and Deleted tables used for records the Original row before updating get stored in the Deleted table and the new row Updated gets store in Inserted table.

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