ALTER TABLE: Modifies a table definition.
CREATE INDEX: Creates an index on a table.
DROP DATABASE: Removes a database from a MySQL server.
DROP INDEX: Removes an index on a table.
DROP TABLE: Removes a table from a database.
LOCK TABLES: Prevents concurrent access to tables.
RENAME TABLES: Renames a table.
SET AUTOCOMMIT=1: Sets the autocommit mode to on.
START TRANSACTION: Begins a transaction.
TRUNCATE TABLE: Removes data from a table.
UNLOCK TABLES: Unlocks locked tables.