Oracle 视图 DBA_MVREF_CHANGE_STATS 官方解释，作用，如何使用详细说明
本站中文解释
Oracle视图DBA_MVREF_CHANGE_STATS保存了特定的物化视图上次刷新以来的更改统计信息，它包括物化视图名称，刷新时间和更改统计信息，帮助DBA理解更改的范围和发生时间。
这个视图可以用来帮助DBA了解他们正在管理的数据库中物化视图查询的变化情况，以及物化视图上次刷新以来发生的更改。
可以使用下面的SQL查询来查询DBA_MVREF_CHANGE_STATS视图：
SELECT * FROM DBA_MVREF_CHANGE_STATS;
官方英文解释
DBA_MVREF_CHANGE_STATS displays the change data load information on the base tables associated with a refresh run for all the materialized views for the database.
Related View
USER_MVREF_CHANGE_STATS displays the change data load information on the master tables associated with a refresh run for all the materialized views in the database that are accessible to the current user.
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Owner of the master table for the materialized view |
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Name of the master table for the materialized view |
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Owner of the materialized view |
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Name of the materialized view |
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The refresh ID of the refresh run |
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The number of inserts in the materialized view log of the table (applicable only if the table has a materialized view log) |
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The number of updates in the materialized view log of the table (applicable only if the table has a materialized view log) |
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The number of deletes in the materialized view log of the table (applicable only if the table has a materialized view log) |
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The number of direct load inserts on the table |
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Indicates whether a partition-maintenance operation (PMOP) occurred. Possible values:
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Details of the PMOPs in the following format:
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The number of rows in the table at the start of the refresh operation |
See Also:
“USER_MVREF_CHANGE_STATS”
