ADABAS (acronym for Adaptable DAta BAse System[1]) is Software AG’s advanced database management system. Acronyms, initialisms, and alphabetisms are Abbreviations that are formed using the initial components in a phrase or name Founded in 1969 Software AG is an enterprise software company with over 4000 enterprise customers in over 70 countries A Computer Database is a structured collection of records or data that is stored in a computer system
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History
First released in 1970, ADABAS is considered by some to have been one of the earliest commercially available database products. A Computer Database is a structured collection of records or data that is stored in a computer system Initially released on IBM mainframe systems using DOS/360, OS/MFT or OS/MVT, ADABAS is now available on a range of other systems including OpenVMS, Unix (including Linux and Linux on zSeries) and Windows servers. IBM mainframes, though perceived as synonymous with Mainframe computers in general due to their marketshare are now technically and specifically IBM 's line of business Disk Operating System/360, also DOS/360, or simply DOS, was an Operating system for IBM mainframes It was announced by IBM on the In the History of IBM mainframe operating systems, multiprogramming with a fixed number of tasks ( MFT) was one of the three available configurations of the OS/360 Open Virtual Memory System ( OpenVMS) initially known just as Virtual Memory System ( VMS) is the name of a High-end Computer server Unix (officially trademarked as UNIX, sometimes also written as Unix with Small caps) is a computer Linux (commonly pronounced ˈlɪnəks Linux on System z is the collective term for the Linux operating system compiled to run on IBM mainframes especially System z machines Microsoft Windows is a series of Software Operating systems and Graphical user interfaces produced by Microsoft. ADABAS has maintained its position as one of the world's fastest OLTP databases, offering 24x7 functioning, Parallel Sysplex support, real-time replication capability, SQL and XML access and other leading edge capabilities. Online transaction processing, or OLTP, refers to a class of systems that facilitate and manage transaction-oriented applications typically for data entry and retrieval Don't change "Extensible" Historically, ADABAS was used in conjunction with Software AG's programming language NATURAL, so that many legacy applications that use ADABAS as a database on the back-end are also developed with NATURAL as well. NATURAL is a Fourth-generation programming language from Software AG.
Technical information
ADABAS is an inverted list database. In Information technology, an inverted index (also referred to as postings file or inverted file) is an index data structure storing a mapping It has been described as "Post-relational" but “Relational Like" in its characteristics. Some differences:
- Files, not Tables as the major organizational unit
- Records, not Rows as content unit within the organizational unit
- Fields, not Columns as components of a content unit
- No embedded SQL engine, an external query mechanism must be provided.
- Search facilities require the existence of appropriate indexes. A database index is a Data structure that improves the speed of operations on a database table.
- Supports two methods of denormalization: repeating groups in a record ("periodic groups"); and multiple field values in a record ("multi-value fields"). Database normalization, sometimes referred to as canonical synthesis, is a technique for designing Relational database tables to minimize duplication of
It has proven to be very successful in providing efficient access to data and maintaining the integrity of the database. ADABAS is now widely used in applications that require very high volumes of data processing or in high transaction online analytical processing environments. Online Analytical Processing or OLAP (ˈoʊlæp is an approach to quickly provide answers to analytical queries that are multi-dimensional in nature
See also
Bibliography
- Pratt, Philip J. Adabas D is a Relational database system previously owned by Software AG. ; Adamski, Joseph J. (1987). DATABASE SYSTEMS: Management and Design. Boston: Boyd & Fraser Publishing Company. ISBN 0-87835-227-9.
External links
- ADABAS product home page
- ADABAS and Natural Developer Community
- ADABAS Training, Outsourcing and Modernization
- ADABAS Modernization Forum
References
- ^ Pratt & Adamski 1987, p. 471
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