Few major functions performed using SQL are listed below:
(i) Executes queries against a database.
(ii) Retrieves data from database.
(iii) Inserts and updates records in a database
(iv) Delete records from database
(v) Creates new databases and new tables in a database

(i) MySQL is a database management system founded by Monty Widenius
(ii) MySQL is open source software that allows managing relational databases.
(iii) It also provides the flexibility of changing the source code as per the needs.
(iv) It runs on multiple platforms like Windows, Linux and is scalable, reliable and fast.

The three major parts that forms a database are Tables, Queries and Views.
(i) Tables - similar to an excel sheet, containing multiple rows and columns. Where each row is a record and each column is an attribute.
(ii) Queries - It is a question with multiple conditions posted to the database. The records in the database that satisfies the passed conditions are retrieved.
(iii) Views - A set of stored queries.

(i) Database Administrators (DBA's) who takes care of configuration, installation, performance, security and data backup.
(ii) DBA's possess the skills on database design, database queries, RDMS, SQL and networking.
(iii) The primary task is the creation of new user and providing them with access rights.

(i) DB2
(ii) MySQL
(iii) Oracle
(iv) PostgreSQL
(v) SQLite
(vi) SQL Server
(vii) Sybase