Oracle教程 2023-02-23

Oracle 视图 ALL_STREAMS_TABLE_RULES 官方解释，作用，如何使用详细说明

本站中文解释

ALL_STREAMS_TABLE_RULES 视图包含客户端在正在运行的流表现有规则的摘要信息。它以此用法提供了以下信息：

1.在流表中定义的一组列，用于检查数据一致性和“落地”（复制）数据的规则。

2.要消费的流表的对象ID。

3.要发布的前缀列表，用于根据关系发布数据。

4.确定哪些流表的变更会被跟踪的规则，以及变更的细节。

使用方法如下：

1.若要在Streams客户端中查看当前活动的规则，请使用ALL_STREAMS_TABLE_RULES视图。

2.若要查看某个流表中定义的规则，请在表和规则ID上使用ALL_STREAMS_TABLE_RULES视图进行过滤。

3.若要查看某个客户端中正在应用的具体规则，请在客户端ID上过滤ALL_STREAMS_TABLE_RULES视图。

官方英文解释

ALL_STREAMS_TABLE_RULES displays information about several types of rules.

ALL_STREAMS_TABLE_RULES displays information about these types of table and subset rules:

Table rules created for the capture processes that enqueue the captured changes into queues accessible to the current user
Table rules created for the propagations that have a source queue accessible to the current user
Table rules created for the apply processes that dequeue events from queues accessible to the current user
Subset rules created for the apply processes that have a source queue accessible to the current user

This view does not contain information about rules created using the DBMS_RULE_ADM package.

Related View

DBA_STREAMS_TABLE_RULES displays information about the table rules created for all capture processes, propagations, and apply processes in the database.

Column	Datatype	NULL	Description
`STREAMS_NAME`	`VARCHAR2(128)`		Name of the Replication process or propagation
`STREAMS_TYPE`	`VARCHAR2(12)`		Type of the Replication process or propagation: `CAPTURE` `PROPAGATION` `APPLY` `DEQUEUE`
`TABLE_OWNER`	`VARCHAR2(128)`		Table owner in the rule condition. The rule evaluates to `true` for a redo entry or logical change record (LCR) only if the redo entry or LCR contains this table owner.
`TABLE_NAME`	`VARCHAR2(128)`		Table name in the rule condition. The rule evaluates to `true` for a redo entry or logical change record (LCR) only if the redo entry or LCR contains this table name.
`RULE_TYPE`	`VARCHAR2(7)`		Type of the rule: `DML` `DDL`
`DML_CONDITION`	`VARCHAR2(4000)`		Row subsetting condition, if the rule is a subset rule
`SUBSETTING_OPERATION`	`VARCHAR2(6)`		DML operation for row subsetting in the rule condition, if the rule is a subset rule: `INSERT` `UPDATE` `DELETE` The rule evaluates to `true` for a logical change record (LCR) only if the LCR contains this command type after internal transformation.
`INCLUDE_TAGGED_LCR`	`VARCHAR2(3)`		Indicates whether a redo entry or logical change record (LCR) with a non-NULL tag is considered for capture, propagation, or apply (`YES`) or not (`NO`)
`SOURCE_DATABASE`	`VARCHAR2(128)`		Source database in the rule condition. The rule evaluates to `true` for a redo entry or logical change record (LCR) only if the redo entry or LCR contains this source database.
`RULE_NAME`	`VARCHAR2(128)`	`NOT NULL`	Name of the rule
`RULE_OWNER`	`VARCHAR2(128)`	`NOT NULL`	Owner of the rule
`RULE_CONDITION`	`VARCHAR2(4000)`		First 4000 bytes of the system-generated rule condition evaluated by the rules engine

本站中文解释

官方英文解释

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