What is SQL and where does it come from?

[Russell]

Structured Query Language (SQL) is a language that gives an interface to relative database systems. SQL was refined by IBM in the 1970s for help in System R, and is a de facto accepted, as well as an ISO and ANSI standard. SQL is generally pronounced SEQUEL. In common usage SQL also encloses DML (Data Manipulation Language), for INSERTs, UPDATEs, DELETEs and DDL (Data Definition Language), used for organizing and modifying tables and other database structures. The advancement of SQL is governed by a code. A major improvement to the SQL standard was completed in1992, called SQL2. SQL3 support object extensions and are (partially?) implemented in Oracle8 and 9.







Educational Blog

[Guest]

SQL (Structured Query Language ) which is responsible for querying and editing information stored in a certain database management system. The SQL language is based on several elements. For the convenience of SQL developers all necessary language commands in the corresponding database management systems are usually executed through a specific SQL command-line interface (CLI).