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SQL Delete Truncate Drop


http://microsoft-techies.blogspot.com/2014/07/sql-delete-truncate-drop.html

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  1. August 9, 2013 at 5:06 pm

    As you probably realize, there is a fundamental difference between truncate and drop. Truncate does not delete rows on the object in question, it deletes pages which is why you cannot use a where clause to determine what is deleted. Truncate does delete rows, but only from system objects that are referencing the pages that are being removed. Truncate is also a minimally logged operation whereas delete is a fully logged operation. There is far less logged when pages are dropped and system objects are updated then doing a large delete. The speed in which these statements perform is based on the count of pages/rows. But yes, truncate is definitely faster… Hope it helps…

    • Share your knowledge
      August 9, 2013 at 5:20 pm

      Thanks for your more insides on truncate and delete.

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