Data is recorded facts and figures, and information is knowledge derived from data. A database stores data in such a way that information can be created.
DBMS stands for Database Management System. A DBMS receives requests from applications and translates those requests into actions on a specific database.
A DBMS processes SQL statements or uses other functionality to create, process and administer databases.
In addition to the users' data, a database contains a description of its own structure. This descriptive data is called "metadata."
SQL stands for Structured Query Language, and is the most important data processing language in use today. It is not a complete programming language like Java or C#, but a data sublanguage used for creating and processing database data and metadata. All DBMS products today use SQL.
SELECT * FROM STUDENT WHERE Grade >= 90;