Oracle教程 2023-04-05

Oracle 视图 V$CODE_CLAUSE 官方解释，作用，如何使用详细说明

Oracle视图V$CODE_CLAUSE显示的是与SQL和PL/SQL的强大语句相关的所有系统信息。它包含了使用数据库的强大功能所需的所有信息，如分析函数、条件条件结构和语句的准确性测试。

使用V$CODE_CLAUSE，您可以从视图中获取有关SQL和PL/SQL语句的有用信息。它还可以用来帮助开发人员了解最新版本SQL和PL/SQL支持的语句。

另外，V$CODE_CLAUSE还可以用于检查SQL和PL/SQL中的语法，以确保所执行的操作是准确的，并且可以在Oracle中执行。

V$CODE_CLAUSE contains the supported clause names and parameter names for the Oracle Data Vault ALTER SYSTEM and ALTER SESSION commands.

Column	Datatype	Description
`CODE_ID#`	`NUMBER`	The OCT code ID: `42`: For `ALTER SESSION` `49`: For `ALTER SYSTEM`
`CLAUSE_ID#`	`NUMBER`	Clause ID
`CLAUSE_NAME`	`VARCHAR2(100)`	The clause name that is supported by the Oracle Data Vault command rule (for example, `SET` or `ADVICE`)
`PARAMETER_NAME`	`VARCHAR2(100)`	The parameter name that is supported by the Oracle Data Vault command rule. For example, for `ALTER SYSTEM SET EVENTS`, `EVENTS` is the parameter.
`CON_ID`	`NUMBER`	The ID of the container to which the data pertains. Possible values include: `0`: This value is used for rows containing data that pertain to the entire CDB. This value is also used for rows in non-CDBs. `1`: This value is used for rows containing data that pertain to only the root n: Where n is the applicable container ID for the rows containing data

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