SQL Basics Tutorials | Types SQL Command | PostgreSQL Basics Tutorials
SQL is a standard language for accessing and manipulating databases.
SQL consists of many types of statements,[8] which may be informally classed as sublanguages, commonly: a data query language (DQL), a data definition language (DDL), a data control language (DCL), and a data manipulation language (DML). The scope of SQL includes data query, data manipulation (insert, update and delete), data definition (schema creation and modification), and data access control. Although SQL is essentially a declarative language (4GL), it also includes procedural elements.
