DROP TABLE
DELETE FROM
DELETE
can usually be rolled back using transactions.WHERE
clause is optional. If omitted, all rows in the table are deleted.Here's a table summarizing the key differences:
Feature DROP TABLE DELETE FROM | ||
Action | Removes the entire table and its structure | Removes specific rows or all rows from a table |
Reversibility | Generally irreversible | Usually reversible (using transactions) |
Speed | Usually faster than DELETE | Can be slower for large tables (especially without WHERE clause) |
Data Recovery | Not possible (unless backed up) | Possible through rollback or backups |
In summary:
DROP TABLE
is used when you want to completely remove a table from the database.6DELETE FROM
is used when you want to remove specific rows from a table while keeping its structure intact.7Choose the appropriate command based on your specific needs and the desired outcome.