What is SQL and Advantage of SQL

What is SQL?

SQL commonly listened as the most popular language for accessing the data from the Database Management System. SQL stands for Structured Query Language is the collection of commands that helps the users to store and retrieve the information from database. According to the ANSI – American National Standards Institution, SQL is the standard language for the Relational Database Management System. This language is collection of commands i.e. insert, update, delete, select and drop that includes database creation, deletion, fetching and modifying rows etc. SQL is used by mostly all of the relational database management systems i.e. Oracle, Sybase, Microsoft SQL Server, Access, Ingres and Informix etc.

Advantages of SQL

SQL is most commonly used query language because of its properties and user-friendly query structures. Some of the advantages of the SQL are:

1.  SQL allows the users to access the data from relational database management system.

2.  SQL allows the users to create, update, delete and modify the database and its tables.

3.  Users can define the structure of data with the help of structured query language.

4.  SQL provides the ability to embed within other language using the SQL modules, libraries and pre-compilers.

5. SQL allows the users to set the permission on tables, procedures and views as well as define the roles of different users.

6. Users can create the views, stored procedures and functions with the help of structured query language commands.

7.  The commands in SQL is classified into three categories i.e. Data Manipulation Language(DML), Data Definition Language(DDL) and Data Control Language(DCL).