However, the standard SQL commands such as "Select", "Insert", "Update", "Delete", "Create", and "Drop" can be used to accomplish almost everything that one needs to do with a database.
Examples of DCL commands include the SQL commands: The operations for which privileges may be granted to or revoked from a user or role apply to both the Data definition language (DDL) and the Data manipulation language (DML), and may include CONNECT, SELECT, INSERT, UPDATE, DELETE, EXECUTE, and USAGE.
With them we can easily allow or deny some actions for users on the tables or records (row level security).
In the first example, GRANT gives privileges to user User1 to do SELECT, INSERT, UPDATE and DELETE on the table named Employees.
For details refer Oracle-[3]TCL Data definition language (DDL) statements let you to perform these tasks: So Oracle Database DDL commands include the Grant and revoke privileges which is actually part of Data control Language in Microsoft SQL server.