SQL is the standard language for making queries in relational database management packages such as – SQL Server, Sybase, Oracle, etc. The standard language for accessing client/server databases is also SQL. When a non-programmer sits on a computer and wants to work with a database, he or she would like to use a simple high-level language that can enable him/her to utilize the database available on a computer completely and easily.

The language should be so designed that its commands are easy to understand. The IBM company creates and modifies the SQL (Structured Query Language). This language is very simple and powerful because it uses compact, English like statements and performs very complex jobs.