数据库产品的更新和发行周期已经从过去的三年压缩到了现在的一年,这使那些不想对数据库进行频繁升级的IT界专业人士感到十分无奈。数据库销售商都期望能以新产品超过竞争对手,最初是Sybase以存储操作挑起了这场竞赛,接下来微软公司使用第一个有效的SQL(结构化查询语言)界面再掀高潮,然后是Oracle公司以记录 The update and release cycle of database products has been compressed from the past three years to the current year, which makes the IT professionals who do not want frequent database upgrades feel very helpless. Database vendors are looking to outdo their competitors with new products. Originally, Sybase initiated this competition with storage operations. Next, Microsoft used the first effective SQL (Structured Query Language) interface to culminate, followed by Oracle. Company records