oracle SQL的解析步骤

本文今天主要为大家详细oracle.html" target="_blank">oracle SQL的解析步骤，小编觉得挺不错的，现在分享给大家，让爱好oracle的朋友们可以参考下，并了解详细的工作流程。

1 The syntax of the SQL statement is verified.

SQL的语法检查

2 The data dictionary is searched to verify table and column definitions.

从数据字典检查表名和字段名

3 The data dictionary is searched to verify security privileges on relevant objects.

从数据字典中检查权限

4 Parse locks are acquired on the relevant objects.

解析相关对象的锁

5 The optimal execution plan is determined.

选在执行计划运行SQL

6 The statement is loaded into the shared SQL area (also known as the library cache) in the shared pool of the system global area (SGA).

执行后SQL语句放在SGA的SQL共享区

oracle SQL的解析步骤就为大家介绍到这里了，如果你有更好的相关方法和技巧，请在下面的评论中与我们分享，我们希望这对你有用。