TRUNCATE vs DELETE In MySQL

TRUNCATE vs DELETE In MySQL

Most of the time you might be wondering the difference between TRUNCATE vs DELETE in MYSQL, where to use, and when to use it. In this article, I will cover as much as possible.

Most of the time you might be wondering the difference between TRUNCATE vs DELETE in MYSQL, where to use, and when to use it. In this article, I will cover as much as possible.


DELETE

Syntax

DELETE [ LOW_PRIORITY ] [ QUICK ] [ IGNORE ] FROM table
[WHERE conditions]
[ORDER BY expression [ ASC | DESC ]]
[LIMIT number_rows];
  1. DELETE is a DML command.
  2. After DELETE command, if table has PrimaryKey with AutoIncrement then AutoIncrement counter wont be reset and starts from next id.
  3. DELETE statement is executed using a row lock, each row in the table is locked for deletion.
  4. We can specify filters in WHERE clause
  5. It deletes specified data if where condition exists else it will delete all the data.
  6. Delete activates a trigger because the operation are logged individually.
  7. Transaction safe. Hence all the deleted data can be rolled back.
  8. Slower than truncate because, it keeps logs.
  9. Rollback is possible.

mysql

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