What is Db2?

Db2 is a family of database management system (DBMS) products from IBM that serve several different operating system (OS) platforms. Used by organizations of all sizes, Db2 provides a data platform for both transactional and analytical operations, as well as continuous availability of data to keep transactional workflows and analytics operating efficiently.

What is a Db2 database and how does it work?

A Db2 database is a group of data treated collectively as a unit. A database is a large structured set of persistent data, and its purpose is to store, retrieve and manipulate related information.A database administrator (DBA) uses Db2, which is DBMS or database server, to create and use Db2 databases. The Db2 DBMS operates as the server to manage data in databases across a multiuser environment, enabling many concurrent users to access the same data simultaneously. The Db2 DBMS also prevents unauthorized access, provides utilities for backing up and recovering data and offers performance tools and data management capabilities.

Db2 databases have logical structures and physical structures which the DBMS manages separately. The physical storage of data can be managed without affecting the access to logical storage structures. Db2 databases are created using Data Definition Language, or DDL, commands and are composed of tablespaces, tables with rows and columns, views, indexes, stored procedures and other supporting structures.

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