1. 选用适合的ORACLE优化器
ORACLE的优化器共有3种:
a. RULE (基于规则)
b. COST (基于成本)
c. CHOOSE (选择性)
设置缺省的优化器,可以通过对init.ora文件中OPTIMIZER_MODE参数的各种声明,如RULE,COST,CHOOSE,ALL_ROWS,FIRST_ROWS . 你当然也在SQL句级或是会话(session)级对其进行覆盖。
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下面内容来自Installing and Configuring the Apache HTTP Server Plug-In:
To install the Apache HTTP Server Plug-In as a dynamic shared object:
Locate the shared object directory for your platform using Table 3-1.
Identify the plug-in shared object file for your version of Apache in Tab ...







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