DB2

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DB2

(database)
A relational database from IBM.

When running under IBM's MVS (Multiple Virtual Storage) operating system, DB2 is implemented on top of VSAM and uses its underlying data structures.

DB2, later called "DB2 Universal DataBase", also runs under windows NT, AIX, Solaris and, most recently, Linux.

DB2

(DATABASE 2) A relational DBMS from IBM that was originally developed for its mainframes. Introduced in 1983, DB2 is a full-featured SQL-based DBMS that became IBM's major database product. Known for its industrial strength reliability, IBM subsequently made DB/2 available for all of its own platforms as well as Linux, Unix (Solaris, HP-UX) and Windows.

DB2 UDB (Universal Database)
In 1996, IBM introduced an enhanced DB2 version that combined relational and object database technology as well as various query optimization techniques for parallel processing. It was also the first DB2 version optimized for the Web. The terms "DB2" and "DB2 UDB" are used synonymously.
References in periodicals archive ?
GridApp's Clarity platform supports Oracle, DB2 UDB, MySQL, Sybase and SQL Server databases, as well as Linux, Windows, Solaris, HP-UX and AIX operating systems.
CA (NYSE:CA), Islandia, N.Y., has unveiled new releases of its Unicenter Database Management solutions that improve service levels, data availability and application responsiveness across DB2 UDB for z/OS and IMS for z/OS databases.
The forthcoming release of LiveTime Version 3.7 has been unveiled by LiveTime Software, a provider of Service Desk solutions, offering full support of IBM DB2 UDB v8.2 running on Linux, UNIX and Windows platforms.
DB2 SQL PL; essential guide for DB2 UDB on Linux, Unix, Windows, i5/0s, and z/OS, 2d ed.
Organizations running applications that use the DB2 Universal Database for Linux on either Novell Suse Linux Enterprise Server 9 or Red Hat Enterprise Linux 3.0, on top of Virtual Iron's virtualization platform, can run DB2 UDB V8.2 on any Intel 32-bit platform.
Key products: DB2 UDB Warehouse Edition; DB2 OLAP Server; WebSphere Information Integrator; Query Management Facility; DB2 Alphablox; Ascential Datastage/Metastage
In a head-to-head, comparative manageability cost study conducted by Edison Group, Oracle(R) Database 10g outperformed IBM DB2 Universal Database v8.2 (DB2 UDB 8.2) and delivered significant cost and time savings over the competing database.
Application, database and Windows management solutions provider Quest Software (UK) Ltd, (Nasdaq: QSFT), has announced the availability of new versions of performance diagnostics solutions Quest Spotlight on DB2 UDB and Quest Spotlight on DB2 OS/390.
Quest SQL Optirmizer for DB2 UDB is based on technology developed by the SQL tuning experts at LECCOTECH, which was recently acquired by Quest Software.
announces the integration of the newly released CocoBase Enterprise O/R, Version 4.5--Service Release 6, the market leader and award winning Dynamic Object to Relational Mapping tool with IBM's DB2 UDB Version 8.2 relational database system including its' JDBC JCC Type 4 driver.
* SmartDBA Performance Solution for DB2 UDB, V2.6 is a Web-based solution for DBAs to detect, diagnose and correct database performance issues.
Parallel databases, including Oracle Parallel Server, IBM DB2 UDB EEE, and Microsoft SQL Server 2000 were early adopters of VI, exploiting the benefits of direct memory access.