Understanding SQL

SQL stands for QUERY LANGUAGE STRUCTURE is a universal language that can be used to modify and access data and information stored in the database, SQL is a language that is supported by all DBMS (database management system).
SQL language is the de facto standard language used in relational database management. Now, almost all the existing database server support sql language to perform data management.
SQL consists of:
- Data Definition Language (DDL) is used to define, modify, and delete databases and objects that are required in the data base.
- Data Manipulation Language (DML) is used to manipulate the data in a table.
SQL statements can be SELECT, INSERT, UPDATE, DELETE, CREATE TABLE, DROP TABLE.

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