Oracle教程 2023-04-05

Oracle 视图 ALL_RULES 官方解释，作用，如何使用详细说明

ALL_RULES视图是Oracle数据库中的系统视图，它存储着当前用户创建的规则信息。它用于查询特定视图或表上定义的规则，其中视图/表名可以通过传字符参数指定。

使用ALL_RULES视图时，用户应该指定表和视图名（如果有），以限定查询结果。将要查询的视图或表作为WHERE 子句中的参数，紧跟在OWNER和NAME 字段之后，如下所示：

SELECT * FROM all_rules
WHERE owner = ‘schema_name’ AND name = ‘table_or_view_name’;

ALL_RULES describes the rules accessible to the current user.

Related Views

DBA_RULES describes all rules in the database.
USER_RULES describes the rules owned by the current user. This view does not display the RULE_OWNER column.

Column	Datatype	NULL	Description
`RULE_OWNER`	`VARCHAR2(128)`	`NOT NULL`	Owner of the rule
`RULE_NAME`	`VARCHAR2(128)`	`NOT NULL`	Name of the rule
`RULE_CONDITION`	`CLOB`		Expressions and operators that constitute the rule condition
`RULE_EVALUATION_CONTEXT_OWNER`	`VARCHAR2(128)`		Owner of the evaluation context associated with the rule, if any
`RULE_EVALUATION_CONTEXT_NAME`	`VARCHAR2(128)`		Name of the evaluation context associated with the rule, if any
`RULE_ACTION_CONTEXT`	`RE$NV_LIST`		Action context associated with the rule, if any
`RULE_COMMENT`	`VARCHAR2(4000)`		Comment specified with the rule, if any