Oracle 视图 ALL_EDITIONING_VIEW_COLS_AE 官方解释,作用,如何使用详细说明
本站中文解释
ALL_EDITIONING_VIEW_COLS_AE是一个以ALL_EDITIONING_VIEWS_AE视图中版本化视图为行表示的列(字段)视图。
作用:
ALL_EDITIONING_VIEW_COLS_AE视图用于列出版本化视图中每个字段的信息,例如字段名称、数据类型、是否可空等。该视图中的每个字段的信息可以帮助用户更好地使用Oracle的版本化视图功能。
使用:
假如我们想要查看当前Oracle数据库中特定版本视图的所有字段,可以通过下面的SQL查询来实现:
SELECT OWNER, VIEW_NAME, COLUMN_NAME, DATA_TYPE, NULLABLE
FROM ALL_EDITIONING_VIEW_COLS_AE
WHERE VIEW_NAME = ”;
其中是指我们要查看的特定版本视图的名称。
官方英文解释
ALL_EDITIONING_VIEW_COLS_AE
describes the relationship between the columns of the editioning views (across all editions) accessible to the current user and the table columns to which they map.
Related Views
-
DBA_EDITIONING_VIEW_COLS_AE
describes the relationship between the columns of all editioning views (across all editions) in the database and the table columns to which they map. -
USER_EDITIONING_VIEW_COLS_AE
describes the relationship between the columns of the editioning views (across all editions) owned by the current user and the table columns to which they map. This view does not display theOWNER
column.
Column | Datatype | NULL | Description |
---|---|---|---|
|
|
|
Owner of an editioning view |
|
|
|
Name of an editioning view |
|
|
|
Column number within the editioning view |
|
|
|
Name of the column in the editioning view |
|
|
|
Column number of a table column to which this editioning view column maps |
|
|
|
Name of a table column to which this editioning view column maps |
|
|
Name of the application edition where the editioning view is defined |
See Also:
-
“DBA_EDITIONING_VIEW_COLS_AE”
-
“USER_EDITIONING_VIEW_COLS_AE”