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title: "预留关键字（Oracle 模式） - OceanBase 数据库 V4.1.0 | OceanBase 文档中心"
description: 预留关键字（Oracle 模式） 功能适用性 该内容仅适用于 OceanBase 数据库企业版。OceanBase 数据库社区版仅提供了 MySQL 模式。 目前，OceanBase 数据库 Oracle 模式下的预留关键字如下所示。 A ACCESS ADD ALL ALTER AND ANY AS ASC AUD…
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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 4.1.0

# 预留关键字（Oracle 模式）

更新时间：2023-07-28 10:45:58

[编辑](https://github.com/oceanbase/oceanbase-doc/edit/V4.1.0/zh-CN/700.reference/500.system-reference/900.reserved-keywords-of-oracle-mode.md)

#### 功能适用性

该内容仅适用于 OceanBase 数据库企业版。OceanBase 数据库社区版仅提供了 MySQL 模式。

目前，OceanBase 数据库 Oracle 模式下的预留关键字如下所示。

| A |
| ACCESS | ADD | ALL | ALTER | AND |
| ANY | AS | ASC | AUDIT |
| B |
| BETWEEN | BY |
| C |
| CHAR | CHECK | CLUSTER | COLUMN | COMMENT |
| COMPRESS | CONNECT | CREATE | CURRENT | CASE |
| CONNECT_BY_ROOT |
| D |
| DATE | DECIMAL | DEFAULT | DELETE | DESC |
| DISTINCT | DROP | DUAL |
| E |
| ELSE | EXCLUSIVE | EXISTS |
| F |
| FILE | FLOAT | FOR | FROM |
| G |
| GRANT | GROUP |
| H |
| HAVING |
| I |
| IDENTIFIED | IMMEDIATE | IN | INCREMENT | INDEX |
| INITIAL | INSERT | INTEGER | INTERSECT | INTO |
| IS |
| L |
| LEVEL | LIKE | LOCK | LONG |
| M |
| MAXEXTENTS | MINUS | MODE | MODIFY |
| N |
| NOAUDIT | NOCOMPRESS | NOT | NOTFOUND | NOWAIT |
| NULL | NUMBER |
| O |
| OF | OFFLINE | ON | ONLINE | OPTION |
| OR | ORDER |
| P |
| PCTFREE | PRIOR | PRIVILEGES | PUBLIC | RAW |
| R |
| RENAME | RESOURCE | REVOKE | ROW | ROWID |
| ROWLABEL | ROWNUM | ROWS |
| S |
| START | SELECT | SESSION | SET | SHARE |
| SIZE | SMALLINT | SUCCESSFUL | SYNONYM | SYSDATE |
| SQL_CALC_FOUND_ROWS |
| T |
| TABLE | THEN | TO | TRIGGER |
| U |
| UID | UNION | UNIQUE | UPDATE | USER |
| V |
| VALIDATE | VALUES | VARCHAR | VARCHAR2 | VIEW |
| W |
| WHENEVER | WHERE | WITH |

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