Oracle 什么时候才不会对SQL做解析直接执行？

[weixin_45770050]

AWR里有个execute to parse的指标，数字越大说明直接执行不经过解析的sql比例越大。
但是参考oracle文档叙述如下：

SQL Parsing
The first stage of SQL processing is parsing.

The parsing stage involves separating the pieces of a SQL statement into a data structure that other routines can process. The database parses a statement when instructed by the application, which means that only the application­, and not the database itself, can reduce the number of parses.

When an application issues a SQL statement, the application makes a parse call to the database to prepare the statement for execution.

2个要点：
1、数据库听从程序要不要解析的指令，只有程序自己才能减少解析
2、每当程序发出一条SQL，程序会发出一个parse call

这两点看起来就有点矛盾，每当程序发出一套sql都会发出parse call的话，那不就是已经是进入解析流程？
那程序又怎么才能让数据库不做解析呢？

[真的不知道取什么名]

concepts里有描述