SQL commands are categorized mainly as DML, DDL, and DCL.
DML (Data Manipulation Language) includes commands that modify data,
like INSERT, UPDATE, DELETE, and SELECT.
UPDATE is used to modify existing records in a table,
so it is a classic DML command.
CREATE and ALTER are DDL (Data Definition Language) commands,
which define or modify database structures like tables.
DROP is also a DDL command used to delete tables or databases.
Therefore, the only DML command here is UPDATE.