Скачать или смотреть What is the difference between DELETE, DROP and TRUNCATE in SQL?

DROP: The "DROP" command in SQL permanently deletes database objects like tables, views, indexes, or constraints. It is irreversible and removes the specified object along with associated data.

DELETE: The "DELETE" command removes rows or records from a table based on specified conditions. It selectively deletes rows that meet the given criteria, but leaves the table structure intact.

TRUNCATE: The "TRUNCATE" command quickly removes all rows from a table in a single operation. It resets auto-increment values and provides a faster alternative to the "DELETE" command for clearing data from a table.

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