--- title: github-fill description: oceanbase.DBA_SUBPART_HISTOGRAMS 说明 该视图从 V4.0.0 版本开始引入。 功能描述 展示本租户所有子分区表的二级分区的直方图数据（每个直方图的端点）。 字段说明 字段名称 类型 是否可以为 NULL 描述 OWNER varchar(128) NO 表的所有者 TABLE_NAM… --- 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 # oceanbase.DBA_SUBPART_HISTOGRAMS 更新时间：2026-04-03 17:31:08 [编辑](https://github.com/oceanbase/oceanbase-doc/edit/V4.5.0/zh-CN/700.reference/700.system-views/300.system-view-of-sys-tenant/200.dictionary-view-of-sys-tenant/26000.o-dba_subpart_histograms-of-sys-tenant.md) #### 说明 该视图从 V4.0.0 版本开始引入。 ## 功能描述 展示本租户所有子分区表的二级分区的直方图数据（每个直方图的端点）。 ## 字段说明 | 字段名称 | 类型 | 是否可以为 NULL | 描述 | | --- | --- | --- | --- | | OWNER | varchar(128) | NO | 表的所有者 | | TABLE_NAME | varchar(128) | NO | 直方图所属表名 | | SUBPARTITION_NAME | varchar(128) | NO | 直方图所属二级分区名 | | COLUMN_NAME | varchar(128) | NO | 直方图所属列名 | | ENDPOINT_NUMBER | decimal(10,0) | NO | Bucket 累积的频次 | | ENDPOINT_VALUE | decimal(10,0) | NO | Bucket 端点归一化值 | | ENDPOINT_ACTUAL_VALUE | text | NO | Bucket 端点值 | | ENDPOINT_ACTUAL_VALUE_RAW | text | NO | Bucket 端点二进制值 | | ENDPOINT_REPEAT_COUNT | decimal(10,0) | NO | Bucket 端点值的频次 | ## 查询示例 系统租户查看本租户的分区表 `sales_subpart` 的二级分区的直方图信息。 ```shell obclient [oceanbase]> SELECT * FROM oceanbase.DBA_SUBPART_HISTOGRAMS WHERE TABLE_NAME ='sales_subpart'; ``` 查询结果如下： ```shell +----------+---------------+-------------------+-------------+-----------------+----------------+-----------------------+---------------------------+-----------------------+ | OWNER | TABLE_NAME | SUBPARTITION_NAME | COLUMN_NAME | ENDPOINT_NUMBER | ENDPOINT_VALUE | ENDPOINT_ACTUAL_VALUE | ENDPOINT_ACTUAL_VALUE_RAW | ENDPOINT_REPEAT_COUNT | +----------+---------------+-------------------+-------------+-----------------+----------------+-----------------------+---------------------------+-----------------------+ | test | sales_subpart | p2023sp0 | quantity | 127 | NULL | 1 | 04053F0001 | 127 | | test | sales_subpart | p2023sp0 | product_id | 127 | NULL | 8 | 04053F0008 | 63 | | test | sales_subpart | p2023sp0 | product_id | 64 | NULL | 4 | 04053F0004 | 64 | | test | sales_subpart | p2023sp1 | quantity | 190 | NULL | 1 | 04053F0001 | 190 | | test | sales_subpart | p2023sp1 | product_id | 190 | NULL | 9 | 04053F0009 | 63 | | test | sales_subpart | p2023sp1 | product_id | 127 | NULL | 5 | 04053F0005 | 63 | | test | sales_subpart | p2023sp1 | product_id | 64 | NULL | 1 | 04053F0001 | 64 | | test | sales_subpart | p2023sp2 | quantity | 127 | NULL | 1 | 04053F0001 | 127 | | test | sales_subpart | p2023sp2 | product_id | 127 | NULL | 6 | 04053F0006 | 63 | | test | sales_subpart | p2023sp2 | product_id | 64 | NULL | 2 | 04053F0002 | 64 | | test | sales_subpart | p2023sp3 | quantity | 191 | NULL | 1000 | 04053F00E807 | 6 | | test | sales_subpart | p2023sp3 | quantity | 185 | NULL | 1 | 04053F0001 | 185 | | test | sales_subpart | p2023sp3 | product_id | 191 | NULL | 999 | 04053F00E707 | 64 | | test | sales_subpart | p2023sp3 | product_id | 127 | NULL | 7 | 04053F0007 | 63 | | test | sales_subpart | p2023sp3 | product_id | 64 | NULL | 3 | 04053F0003 | 64 | | test | sales_subpart | p2024sp0 | quantity | 73 | NULL | 1 | 04053F0001 | 73 | | test | sales_subpart | p2024sp0 | product_id | 73 | NULL | 8 | 04053F0008 | 37 | | test | sales_subpart | p2024sp0 | product_id | 36 | NULL | 4 | 04053F0004 | 36 | | test | sales_subpart | p2024sp1 | quantity | 110 | NULL | 1 | 04053F0001 | 110 | | test | sales_subpart | p2024sp1 | product_id | 110 | NULL | 9 | 04053F0009 | 37 | | test | sales_subpart | p2024sp1 | product_id | 73 | NULL | 5 | 04053F0005 | 37 | | test | sales_subpart | p2024sp1 | product_id | 36 | NULL | 1 | 04053F0001 | 36 | | test | sales_subpart | p2024sp2 | quantity | 73 | NULL | 1 | 04053F0001 | 73 | | test | sales_subpart | p2024sp2 | product_id | 73 | NULL | 6 | 04053F0006 | 37 | | test | sales_subpart | p2024sp2 | product_id | 36 | NULL | 2 | 04053F0002 | 36 | | test | sales_subpart | p2024sp3 | quantity | 109 | NULL | 1000 | 04053F00E807 | 4 | | test | sales_subpart | p2024sp3 | quantity | 105 | NULL | 1 | 04053F0001 | 105 | | test | sales_subpart | p2024sp3 | product_id | 109 | NULL | 999 | 04053F00E707 | 36 | | test | sales_subpart | p2024sp3 | product_id | 73 | NULL | 7 | 04053F0007 | 37 | | test | sales_subpart | p2024sp3 | product_id | 36 | NULL | 3 | 04053F0003 | 36 | +----------+---------------+-------------------+-------------+-----------------+----------------+-----------------------+---------------------------+-----------------------+ 30 rows in set ``` ## 相关视图或文档 - 查看表级的直方图统计信息：[DBA_TAB_HISTOGRAMS](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000004477512) - 查看 Partition 级的直方图统计信息：[DBA_PART_HISTOGRAMS](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000004477479) - 查看表级的列统计信息：[DBA_TAB_STATISTICS](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000004477519) - 查看 Global 级的列统计信息：[DBA_TAB_COL_STATISTICS](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000004477446) - 查看 Partition 级的列统计信息：[DBA_PART_COL_STATISTICS](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000004477750) - 查看 Subpartition 级的列统计信息：[DBA_SUBPART_HISTOGRAMS](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000004477651) - 查看索引统计信息：[DBA_IND_STATISTICS](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000004477487) - 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