--- title: "USER_TAB_HISTOGRAMS - OceanBase 数据库 V4.5.0 | OceanBase 文档中心" description: USER_TAB_HISTOGRAMS 说明 该视图从 V3.2.1 版本开始引入。 功能描述 展示当前用户拥有的表的表级直方图相关信息。 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 TABLE_NAME VARCHAR2(128… --- 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 # USER_TAB_HISTOGRAMS 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/30700.user_tab_histograms-of-oracle-mode.md) #### 说明 该视图从 V3.2.1 版本开始引入。 ## 功能描述 展示当前用户拥有的表的表级直方图相关信息。 #### 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 | | --- | --- | --- | --- | | TABLE_NAME | VARCHAR2(128) | NO | 直方图所属表名 | | COLUMN_NAME | VARCHAR2(128) | NO | 直方图所属列名 | | ENDPOINT_NUMBER | NUMBER | NO | Bucket 累积的频次 | | ENDPOINT_VALUE | NUMBER | NO | Bucket 端点归一化值 | | ENDPOINT_ACTUAL_VALUE | VARCHAR2(4000) | NO | Bucket 端点值 | | ENDPOINT_ACTUAL_VALUE_RAW | VARCHAR2(4000) | NO | Bucket 端点二进制值 | | ENDPOINT_REPEAT_COUNT | NUMBER | NO | Bucket 端点值的频次 | | SCOPE | VARCHAR2(7) | YES | 直方图所属范围 | ## 查询示例 查看当前用户拥有的所有表中，表 `T_SUBPART` 的表级直方图相关信息。 ```shell obclient [SYS]> SELECT * FROM SYS.USER_TAB_HISTOGRAMS WHERE TABLE_NAME='T_SUBPART'; ``` 查询结果如下： ```shell +------------+-------------+-----------------+----------------+-----------------------+---------------------------+-----------------------+-------+ | TABLE_NAME | COLUMN_NAME | ENDPOINT_NUMBER | ENDPOINT_VALUE | ENDPOINT_ACTUAL_VALUE | ENDPOINT_ACTUAL_VALUE_RAW | ENDPOINT_REPEAT_COUNT | SCOPE | +------------+-------------+-----------------+----------------+-----------------------+---------------------------+-----------------------+-------+ | T_SUBPART | C1 | 1 | NULL | 0 | 0F053F0080000000 | 1 | NULL | | T_SUBPART | C1 | 2501 | NULL | 2500 | 0F053F00C0000001C4090000 | 1 | NULL | | T_SUBPART | C1 | 5001 | NULL | 5000 | 0F053F00C000000188130000 | 1 | NULL | | T_SUBPART | C1 | 7501 | NULL | 7500 | 0F053F00C00000014C1D0000 | 1 | NULL | | T_SUBPART | C1 | 10000 | NULL | 9999 | 0F053F00C00000010F270000 | 1 | NULL | | T_SUBPART | C2 | 10 | NULL | 0 | 0F053F0080000000 | 10 | NULL | | T_SUBPART | C2 | 2510 | NULL | 250 | 0F053F00C0000001FA000000 | 10 | NULL | | T_SUBPART | C2 | 5010 | NULL | 500 | 0F053F00C0000001F4010000 | 10 | NULL | | T_SUBPART | C2 | 7510 | NULL | 750 | 0F053F00C0000001EE020000 | 10 | NULL | | T_SUBPART | C2 | 10000 | NULL | 999 | 0F053F00C0000001E7030000 | 10 | NULL | | T_SUBPART | C3 | 5 | NULL | 0 | 0F053F0080000000 | 5 | NULL | | T_SUBPART | C3 | 2505 | NULL | 500 | 0F053F00C0000001F4010000 | 5 | NULL | | T_SUBPART | C3 | 5005 | NULL | 1000 | 0F053F00C0000001E8030000 | 5 | NULL | | T_SUBPART | C3 | 7505 | NULL | 1500 | 0F053F00C0000001DC050000 | 5 | NULL | | T_SUBPART | C3 | 10000 | NULL | 1999 | 0F053F00C0000001CF070000 | 5 | NULL | +------------+-------------+-----------------+----------------+-----------------------+---------------------------+-----------------------+-------+ 15 rows in set ``` ## 相关视图或文档 - 查看当前用户可访问的所有表的表级直方图统计信息：[ALL_TAB_HISTOGRAMS](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000004477407) - 查看当前租户的所有表的表级直方图统计信息：[DBA_TAB_HISTOGRAMS](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000004477200) - 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) - 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) - Partition 级的列统计信息，查询以下视图： - [ALL_PART_COL_STATISTICS](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000004477115) - [DBA_PART_COL_STATISTICS](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000004477419) - [USER_PART_COL_STATISTICS](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000004477195) - 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) - 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