--- title: github-fill description: ALL_PART_COL_STATISTICS 说明 该视图从 V3.2.1 版本开始引入。 功能描述 ALL_PART_COL_STATISTICS 用于展示当前用户可访问的分区表中一级分区的列统计信息和直方图信息。 功能适用性 该视图仅适用于 OceanBase 数据库 Oracle 模式。 字段说明 字段名称 … --- 切换语言 - 中文站 - 简体中文 - International - English - 日本站 - 日本語 文档反馈![](https://mdn.alipayobjects.com/huamei_22khvb/afts/img/A*P8CuR4UJ_FkAAAAAAAAAAAAADiGDAQ/original) OceanBase 数据库分布式版 - V 4.5.0 # ALL_PART_COL_STATISTICS 更新时间：2026-04-01 14:27:05 [编辑](https://github.com/oceanbase/oceanbase-doc/edit/V4.5.0/zh-CN/700.reference/700.system-views/500.system-view-of-oracle-mode/200.dictionary-view-of-oracle-mode/2500.all_part_col_statistics-of-oracle-mode.md) #### 说明 该视图从 V3.2.1 版本开始引入。 ## 功能描述 `ALL_PART_COL_STATISTICS` 用于展示当前用户可访问的分区表中一级分区的列统计信息和直方图信息。 #### 功能适用性 该视图仅适用于 OceanBase 数据库 Oracle 模式。 ## 字段说明 | 字段名称 | **类型** | **是否可以为 NULL** | **描述** | | --- | --- | --- | --- | | OWNER | VARCHAR2(128) | NO | 列所属的用户 | | TABLE_NAME | VARCHAR2(128) | NO | 表名 | | PARTITION_NAME | VARCHAR2(128) | NO | 分区名 | | COLUMN_NAME | VARCHAR2(128) | NO | 列名 | | NUM_DISTINCT | NUMBER | YES | 列中不同值的数量 | | LOW_VALUE | VARCHAR2(128) | YES | 列的最小值 | | HIGH_VALUE | VARCHAR2(128) | YES | 列的最大值 | | DENSITY | NUMBER | YES | 列的密度 | | NUM_NULLS | NUMBER | YES | 列中 `NULL` 值的数量 | | NUM_BUCKETS | NUMBER | YES | 列直方图中桶的个数 | | SAMPLE_SIZE | NUMBER | YES | 分析时的采样大小 | | LAST_ANALYZED | DATE | YES | 上次分析的时间 | | GLOBAL_STATS | VARCHAR2(3) | YES | - `YES`：表示统计信息是直接收集的。 - `NO`：表示统计信息是通过二级分区统计信息推导出的或未收集统计信息。 | | USER_STATS | VARCHAR2(3) | YES | 表示分区统计信息是否是用户设置的 | | NOTES | VARCHAR2(80) | YES | 记录一些额外的属性 | | AVG_COL_LEN | NUMBER | YES | 列的平均长度 | | HISTOGRAM | VARCHAR2(15) | YES | 直方图类型 | ## 查询示例 查看当前用户可访问的分区表中，表 `T_SUBPART` 的一级分区的列统计信息和直方图信息。 ```shell obclient [SYS]> SELECT * FROM SYS.ALL_PART_COL_STATISTICS WHERE TABLE_NAME='T_SUBPART'; ``` 查询结果如下： ```shell +-------+------------+----------------+-------------+--------------+-----------+------------+-----------------------+-----------+-------------+-------------+---------------+--------------+------------+-------+-------------+-----------+ | OWNER | TABLE_NAME | PARTITION_NAME | COLUMN_NAME | NUM_DISTINCT | LOW_VALUE | HIGH_VALUE | DENSITY | NUM_NULLS | NUM_BUCKETS | SAMPLE_SIZE | LAST_ANALYZED | GLOBAL_STATS | USER_STATS | NOTES | AVG_COL_LEN | HISTOGRAM | +-------+------------+----------------+-------------+--------------+-----------+------------+-----------------------+-----------+-------------+-------------+---------------+--------------+------------+-------+-------------+-----------+ | SYS | T_SUBPART | P2 | C1 | 2658 | 3 | 9995 | .00037622272385252068 | 0 | 5 | 2504 | 17-MAR-25 | NO | NO | NULL | 20 | HYBRID | | SYS | T_SUBPART | P1 | C1 | 4986 | 0 | 9999 | .00020056157240272763 | 0 | 5 | 4966 | 17-MAR-25 | NO | NO | NULL | 20 | HYBRID | | SYS | T_SUBPART | P0 | C1 | 2646 | 2 | 9998 | .0003779289493575208 | 0 | 5 | 2530 | 17-MAR-25 | NO | NO | NULL | 20 | HYBRID | | SYS | T_SUBPART | P2 | C2 | 965 | 1 | 999 | .0010362694300518134 | 0 | 5 | 2504 | 17-MAR-25 | NO | NO | NULL | 20 | HYBRID | | SYS | T_SUBPART | P1 | C2 | 1031 | 0 | 999 | .00096993210475266732 | 0 | 5 | 4966 | 17-MAR-25 | NO | NO | NULL | 20 | HYBRID | | SYS | T_SUBPART | P0 | C2 | 975 | 0 | 999 | .0010256410256410256 | 0 | 5 | 2530 | 17-MAR-25 | NO | NO | NULL | 20 | HYBRID | | SYS | T_SUBPART | P2 | C3 | 1498 | 1 | 1999 | .00066755674232309744 | 0 | 5 | 2504 | 17-MAR-25 | NO | NO | NULL | 20 | HYBRID | | SYS | T_SUBPART | P1 | C3 | 1933 | 0 | 1999 | .00051733057423693739 | 0 | 5 | 4966 | 17-MAR-25 | NO | NO | NULL | 20 | HYBRID | | SYS | T_SUBPART | P0 | C3 | 1529 | 0 | 1999 | .00065402223675604975 | 0 | 5 | 2530 | 17-MAR-25 | NO | NO | NULL | 20 | HYBRID | +-------+------------+----------------+-------------+--------------+-----------+------------+-----------------------+-----------+-------------+-------------+---------------+--------------+------------+-------+-------------+-----------+ 9 rows in set ``` ## 相关视图或文档 - 查看本租户下所有分区表中一级分区的列统计信息：[DBA_PART_COL_STATISTICS](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000004477419) - 查看当前用户所拥有的分区表中一级分区的列统计信息：[USER_PART_COL_STATISTICS](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000004477195) - 表级的列统计信息，查询以下视图： - [ALL_TAB_STATISTICS](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000004477418) - [DBA_TAB_STATISTICS](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000004477397) - [USER_TAB_STATISTICS](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000004477325) - Global 级的列统计信息，查询以下视图： - [ALL_TAB_COL_STATISTICS](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000004477281) - [DBA_TAB_COL_STATISTICS](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000004477143) - [USER_TAB_COL_STATISTICS](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000004477308) - Subpartition 级的列统计信息，查询以下视图： - [ALL_SUBPART_COL_STATISTICS](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000004477172) - [DBA_SUBPART_COL_STATISTICS](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000004477290) - [USER_SUBPART_COL_STATISTICS](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000004477423) - 表级的直方图统计信息，查询以下视图： - [ALL_TAB_HISTOGRAMS](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000004477407) - [DBA_TAB_HISTOGRAMS](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000004477200) - [USER_TAB_HISTOGRAMS](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000004477400) - Partition 级的直方图统计信息，查询以下视图： - [ALL_PART_HISTOGRAMS](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000004477319) - [DBA_PART_HISTOGRAMS](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000004477374) - [USER_PART_HISTOGRAMS](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000004477130) - Subpartition 级的直方图统计信息，查询以下视图： - [ALL_SUBPART_HISTOGRAMS](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000004477146) - [DBA_SUBPART_HISTOGRAMS](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000004477359) - [USER_SUBPART_HISTOGRAMS](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000004477255) - 索引统计信息，查询以下视图： - [ALL_IND_STATISTICS](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000004477357) - [DBA_IND_STATISTICS](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000004477229) - [USER_IND_STATISTICS](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000004477370) - 有关如何收集统计信息，参见以下文档： - [手动收集统计信息](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000004481059) - [自动收集统计信息](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000004481061) 上一篇 下一篇 ![有帮助](https://gw.alipayobjects.com/mdn/ob_asset/afts/img/A*y6ocSqN8cqsAAAAAAAAAAAAAARQnAQ)![无帮助](https://gw.alipayobjects.com/mdn/ob_asset/afts/img/A*BG9IQJyLHF8AAAAAAAAAAAAAARQnAQ)![反馈](https://gw.alipayobjects.com/mdn/ob_asset/afts/img/A*eTWdQKCRKHwAAAAAAAAAAAAAARQnAQ)[AI](https://www.oceanbase.com/obi) 咨询热线