Oracle Database的大版本號由兩部分組成：
數字+字母，數字自然是大版本號，
字母則是代表了這個版本的“中心思想”
8i（1998），9i（2001）：那時候正好互聯網興起，i就代表internet（網絡）10g（2003），11g（2007）：現在主推分布式計算，g就代表grid（網格）另外，還有個11i，這容易引起混淆，其實11i是指Oracle EBS（E-Business Suite電子商務套件）的版本號，其實就是Oracle ERP。（這好像跟Oracle Database沒什么必然聯系，我也不知道這個i代表什么）
這也說明Oracle不等于Oracle Database。平常我們說“Oracle”，一般都是指Oracle Database，當然這是它最著名的產品；不過，其實Oracle早就已經不是一家數據庫廠商了，而是航母級廠商，東收西購，啥都有了。
我見過這樣的問題：“從版本命名來看8i-9i-10g-11i，是不是意味著grid只是曇花一現？”顯然這就是混淆了Oracle Database和Oracle ERP。----以下是一些參考----
In 1998, Oracle announced Oracle8i, which is sometimes referred to as Version 8.1 of the Oracle8 database. The i was added to denote added functionality supporting Internet deployment in the new version. Oracle9i followed, with Application Server available in 2000 and Database Server in 2001.
Oracle Database 10g was introduced in 2003; the g denotes Oracle's focus on emerging grid deployment models.
Oracle 11i refers to the Oracle ERP Application Suite (often called Oracle E-Business Suite) and really has nothing to do with the database. The latest release (12) will be referred to as 12i. The confusing part is that Oracle used to call its database "i" for "internet" in releases 8 and 9, but now calls the database "g" for "grid". So, to summarize, Oracle 11i refers to the apps and Oracle 11g refers to the database
posted on 2008-11-17 22:32
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