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@Florida

DB2 was in the market in 1983.

gdps(槟榔)
http://www.phptr.com/articles/article.asp?p=375536&rl=1
(#3318763@0)
Last Updated: 2006-11-14
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Replies, comments and Discussions:

  • 工作学习 / 专业技术讨论 / 2005数据库市场份额 -886xyz(cqcq); 2006-11-9 {476} (#3312128@0)
    这里引用IDC的报告,
    Oracle 44.6%,
    DB2 21.4%
    MS 16.8%
    Sybase 3.5%
    Teredata 2.9%

    实际上,前几年Gartner曾宣称DB2市场份额第一,那是因为只算新销售,后来也学IDC, 算上维护费用,Oracle已有客户多,一下便遥遥领先.

    Oracle现有份额最高，主要原因是它进入市场早，市场销售aggressive,新功能多.
    Oracle 在市场近三十年（1979）,SQL Server (1989) 和 DB2 UDB (1993) 都晚了十几年.
    现在SQL Server和DB2都在奋起直追。在Windows下SQL Server有50%+以上份额, DB2 则和SAP结盟，Oracle的地位正受到威胁.
    • This encourages me to learn more about Oracle... -xczheng(图图); 2006-11-13 (#3317676@0)
    • DB2 was in the market in 1983. -gdps(槟榔); 2006-11-14 {55} (#3318763@0)
      http://www.phptr.com/articles/article.asp?p=375536&rl=1
      • That's right，DB2 for mainframe was released in 1983, 4 years later than Oracle; DB2 for Unix, Windows and OS/2 started in 1993. -886xyz(cqcq); 2006-11-14 (#3319434@0)
        • Most banks use IMS and DB2 on mainframe now. IMS was founded in 1968 though.
          -gdps(槟榔); 2006-11-14 (#3319560@0)
          • IMS and DB2 on mainframe is a tiny market compared with other platform. -yeek(我爱我家); 2006-11-14 (#3319574@0)
            • Tiny? IBM had most of its sales being for DB2 and SQL-DS on the mainframe and DB2/400. -gdps(槟榔); 2006-11-14 (#3319770@0)
          • That's right. Most ficancial service firms use IBM products, including both DB2 for zOS and DB2 LUW. DB2 for zOS doesn't compete with Oracle, only DB2 LUW does and catches up well. -886xyz(cqcq); 2006-11-14 (#3320038@0)
    • It counts maket share by revenue so favor IBM/Oracle, if counts by license, microsoft would increase more rapidly. -expert3(expert3); 2006-11-14 (#3319627@0)

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