其实Oracle也可以很便宜,标准版在很多情况下已经够用了,下面的信息是对比oracle数据库企业版,标准版,个人版之间的差异.
标准版比企业版主要缺少的功能如下:
1、不支持Oracle Data Guard.想要高可用性的客户,就不能选择标准版)
2、一些Online操作,比如Online index maintenance,Online table redefinition等不支持
3、备份和恢复的某些操作受限,比如不支持Block级别的恢复(Block-level media recovery),不支持并行备份和恢复(Parallel backup and recovery),多重备份(Duplexed backup sets)等等
4、Flashback功能,在标准版中Flashback Table,Flashback Database, Flashback Transaction Query都是不支持的 5、VPD(Virtual Private Database)不支持
6、FGA(Fine-grained auditing)不支持
7、Partitioning,分区也不支持
8、Data compression,比如表压缩,分区压缩都不支持
9、Bitmapped index and bitmapped join index,不支持,(如果是数据仓库系统就不能选择标准版了)
10、Export transportable tablespace,(注意,这里只是导入不支持),但是Import transportable tablespace,包括跨平台的import都是支持的,也就是说你如果选择了标准版,那么想把数据库简单地转移到其它平台上是比较费劲的事情了 11、一些并行操作都不支持,包括Parallel query,Parallel DML,Parallel index build,Parallel Data Pump export and import。
12、不支持Streams,又少了一个高可用性的可行性方案 13、不支持Advanced Replication的multimaster方式,再少一个高可用性方案,当然实体化视图的复制方案仍然是支持的 14、不支持Connection Manager
以下是官方描述的不同版本企业版、标准版之间的差异:
Differences between Enterprise, Standard and Personal Edition
Starting point: Note 465455.1
Content of this note:
Server
Version Note # ABSTRACT
====================================================================
8.1 NOTE.112591.1 Differences Between Enterprise, Standard and Personal Editions on Oracle 8.1
9.0 NOTE.161556.1 Differences between Oracle9i Personal, Standard and Enterprise on NT/2000
9.2 NOTE.269040.1 Differences Between Enterprise, Standard and Personal Editions on Oracle 9.2
10.1 NOTE.271886.1 Differences Between Different Editions of Oracle Database 10G
10.2 NOTE.465465.1 Differences Between Enterprise, Standard and Personal Editions on Oracle 10.2
11.1 Note.465460.1 Differences Between Enterprise, Standard and Personal Editions on Oracle 11.1
11.2 Note.1084132.1 Differences Between Enterprise, Standard and Personal Editions on Oracle 11.2
这里将11.2的差异说明贴出:

I APPLIES TO:Oracle Database – Enterprise Edition – Version 11.2.0.1.0 to 11.2.0.3 [Release 11.2] DETAILS
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