Why is Truncate faster than delete in SQL server?

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Richa Arora

As it deallocates the data pages instead of rows and records data pages instead of rows in transaction logs.
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When you use TRUNCATE TABLE, SQL Server typically logs the deallocation of the data pages, whereas DELETE logs each row deletion. This means that TRUNCATE TABLE generates less log data compared to DELETE, resulting in faster operation as logging can be a significant overhead.
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When you useTRUNCATE TABLE, SQL Server typically logs the deallocation of the data pages, whereasDELETElogs each row deletion. This means thatTRUNCATE TABLEgenerates less log data compared toDELETE, resulting in faster operation as logging can be a significant overhead. read less
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When you use TRUNCATE TABLE, SQL Server typically logs the deallocation of the data pages, whereas DELETE logs each row deletion. This means that TRUNCATE TABLE generates less log data compared to DELETE, resulting in faster operation as logging can be a significant overhead.
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