Oracle教程 2023-02-25

Oracle 视图 ALL_ANALYTIC_VIEW_ATTR_CLASS 官方解释，作用，如何使用详细说明

ALL_ANALYTIC_VIEW_ATTR_CLASS是Oracle数据库中视图的一种，它可用来查看所有关于分析视图列属性和其类型的信息。

此类视图包含以下列：

* VIEW_NAME：获取分析视图的名称。
* ATTR_NAME：获取分析视图中的列名。
* ATTR_CLASS：获取分析视图中的列属性的类型，包括维度、度量和其他。

使用此视图，可查询指定视图中的列属性，其用途如下：

* 查看特定视图中列的属性类型，确定列是维度列还是度量列。
* 查看特定视图中列的属性是维度列时，可以通过它们来解决业务上的问题，提高报表数据的可读性。
* 诊断分析视图的中的数据源，从而提供优化性能的可能。

ALL_ANALYTIC_VIEW_ATTR_CLASS describes the attribute classifications of the analytic views accessible to the current user.

Related Views

DBA_ANALYTIC_VIEW_ATTR_CLASS describes the attribute classifications of all analytic views in the database.
USER_ANALYTIC_VIEW_ATTR_CLASS describes the attribute classifications of the analytic views owned by the current user. This view does not display the OWNER column.

Column	Datatype	NULL	Description
`OWNER`	`VARCHAR2(128)`	`NOT NULL`	Owner of the analytic view
`ANALYTIC_VIEW_NAME`	`VARCHAR2(128)`	`NOT NULL`	Name of analytic view
`DIMENSION_ALIAS`	`VARCHAR2(128)`		Alias of the attribute dimension in the analytic view
`HIER_ALIAS`	`VARCHAR2(128)`		Alias of the hierarchy specified by an attribute dimension in the analytic view
`ATTRIBUTE_NAME`	`VARCHAR2(128)`	`NOT NULL`	Name of the attribute within the analytic view
`CLASSIFICATION`	`VARCHAR2(128)`		Name of analytic view attribute classification
`VALUE`	`CLOB`		Value of attribute classification
`LANGUAGE`	`VARCHAR2(64)`		Language of attribute classification
`ORDER_NUM`	`NUMBER`	`NOT NULL`	Order number of the attribute classification
`ORIGIN_CON_ID`	`NUMBER`		The ID of the container where the data originates. Possible values include: `0`: This value is used for rows in non-CDBs. This value is not used for CDBs. n: This value is used for rows containing data that originate in the container with container ID n (n = 1 if the row originates in root).