DDL/DML/TCL
Oracle uses the SQL (Structured Query Language) database language to store and retrieve data. It includes the following categories of SQL statements: DDL (Data Definition Language) - Used to create, alter, or drop database objects, such as schemas, tables, columns, views, and sequences. For example, statements that use the commands, CREATE and DROP. DML (Data Manipulation Language) - Used to query and manipulate data in existing schema objects. For example, statements that use the commands, SELECT, INSERT, UPDATE, and DELETE. TCL (Transaction Control Language)