Relational Database

Posted on April 21, 2018May 5, 2018 by admin

Relational Database A relational database is a collection of data items organized as a set of formally-described tables from which data can be accessed or reassembled in many different ways without having to reorganize the database tables. The relational database was invented by E. F. Codd at IBM in 1970. The standard user and application program interface to a relational database is the structured query language (SQL). SQL statements are used both for interactive queries for information...

SQL (Structured Query Language)

Posted on April 20, 2018April 21, 2018 by admin

SQL (Structured Query Language) SQL (Structured Query Language) is a standardized programming language used for managing relational databases and performing various operations on the data in them. Initially created in the 1970s, SQL is regularly used by database administrators, as well as by developers writing data integration scripts and data analysts looking to set up and run analytical queries. The uses of SQL include modifying database table and index structures; adding, updating and...