Author Topic: Some History of IBM DB2 and Its Competitors  (Read 200 times)

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Some History of IBM DB2 and Its Competitors
« on: October 16, 2008, 04:01:26 PM »
Historically, prime position in the database management software market has been held by Oracle. On May 3, 2004, IBM\'s head of database development and sales, Janet Perna, claimed their main competitors were Oracle in the context of advanced transaction handling and Teradata in the context of decision support systems (e.g. data warehousing). However, there are competitors in smaller markets, including Microsoft SQL Server (which is only available for Microsoft Windows), open source products such as Firebird, PostgreSQL and MySQL, and niche players such as Sybase and MaxDB.

In the clustered DBMS arena, where databases can grow to many terabytes, IBM\'s Database Partitioning Feature (DPF) is often pitted against Oracle Real Application Clusters (RAC), a shared-disk implementation formerly known as Oracle Parallel Server (OPS).

DB2 for z/OS arguably has fewer direct competitors, but Oracle is attracting customers to its Linux on zSeries products, although apparently not at the expense of DB2. CA-Datacom and Software AG\'s ADABAS are competing relational databases for z/OS, and there are certain niche products as well (Model 204, SUPRA SQL[3], NOMAD, etc.) Oracle has a 31-bit RDBMS available for z/OS. Non-relational databases that "compete" include IMS, and CA-IDMS, among others.

IBM and DB2 are frequently at or near the top of the TPC-C[4] and TPC-H[5] industry benchmarks published on the Transaction Processing Performance Council\'s website.

In 2006 IBM stepped up its competition in the emerging data warehouse appliance market by releasing a product line of pre-configured hardware/software systems combining DB2 Data Warehouse Edition with either IBM system p (AIX) or IBM system x (Linux) servers. This family of "warehouse appliance-like" systems was given the name IBM Balanced Configuration Unit, or BCU, and is aimed at the warehouse appliance market typified by Netezza and DATAllegro, but it differentiates itself in that it uses the full-featured version of DB2 instead of a single-purpose warehouse-oriented RDBMS.


Source: http://en.wikipedia.org/wiki/IBM_DB2

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Some History of IBM DB2 and Its Competitors
« on: October 16, 2008, 04:01:26 PM »

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