[SQL Server] Truncate vs Delete

  1. Truncate resets Identity of Table while Delete doesn’t
  2. Truncate removes all record from the table including all spaces allocated for the records are removed while Delete remains those spaces
  3. Truncate locks the entire table while Delete locks table row
  4. Truncate is DDL (Data Definition Language) command while Delete is DML (Data Manipulation Language) command
  5. Truncate can’t use WHERE clause while Delete can
  6. Trigger is not fired while truncated while being fired for DELETE
  7. Syntax:
    1. TRUNCATE table_name
    2. DELETE FROM table_name WHERE expression

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