Now a days, Information is playing an important role in our lives. One of the major sources of information is databases. Databases and database technology are having major impact on the growing use of computers. Almost all IT applications are storing and retrieving information from databases. Retrieving information database requires knowledge of database languages like SQL. The Structured Query Language (SQL) norms are been pursued in almost all languages for relational database systems. However, not everybody is able to write SQL queries as they may not be aware of the structure of the database. The idea of using Natural Language instead of SQL has prompted the development of new type of processing called Natural language Interface to Database

Keywords : Databases, Database Management System (DBMS), Structured Query Language (SQL), Natural Language Interface for Databases (NLIDB), Flexible Querying