CREATE RULE用于定义一条应用于指定表或视图的新规则。 简介 CREATE RULE定义一条应用于指定表或视图的新规则。CREATE OR REPLACE RULE将创建一条新规则或者替换同一个表上具有同一名称的现有规则。 PolarDB规则系统允许我们定义针对数据库表中插入、更新或者删除动作上的替代动作。大约来说,当在一个给定表上执行给定...
CREATE [ OR REPLACE ] RULEnameAS ONeventTOtable[ WHEREcondition] DO [ INSTEAD ] { NOTHING |command| (command;command... ) } DESCRIPTION 描述 CREATE RULE定义一个适用于特定表或者视图的新规则。 CREATE OR REPLACE RULE 要么是创建一个新规则, 要么是用一个同表上的同名规则替换现有规则。 PostgreSQL...
关于CREATE RULE 命令,参见Postgres Plus文档集。 是否允许访问视图中引用的表由视图所有者拥有权限来决定的。如果在使用视图的查询中直接调用函数,那么在视图中调用的函数也做相同的处理。因此,使用视图的用户必须有权限调用视图用到的所有函数。 示例 创建一个视图,包含所有在部门编号为30的雇员: CREATE VIEW dept...
{"Version":"2012-10-17","Statement": [{"Sid":"AllowManagedRuleToSendS3EventsToGuardDuty","Effect":"Allow","Action": ["events:PutRule","events:DeleteRule","events:PutTargets","events:RemoveTargets"],"Resource": ["arn:aws:events:us-east-1:111122223333:rule/DO-NOT-DELETE-AmazonGuardDutyMa...
Type or browse for a location to place content that matches the rule. Select the Automatically create a folder checkbox to group similar documents together in folders. For example, if you have a property that lists all documents for projects in your organization, you can ...
DatabaseSqlVulnerabilityAssessmentRuleBaselinesCreateOrUpdateOptionalParams DatabaseSqlVulnerabilityAssessmentRuleBaselinesCreateOrUpdateResponse DatabaseSqlVulnerabilityAssessmentRuleBaselinesDeleteOptionalParams DatabaseSqlVulnerabilityAssessmentRuleBaselinesGetOptionalParams DatabaseSqlVulnerabilityAssessmentRuleBaselinesGetRespons...
OR REPLACE 指定替换当前服务器上存在的函数的定义。 在目录中替换新定义之前,现有定义将被有效删除,但授予函数的权限不受影响。 此选项只能由对象所有者指定。 如果函数的定义在当前服务器上不存在,那么忽略此选项。 要替换现有函数,新定义的特定名称和函数名必须与旧定义的特定名称和函数名相同,或者新定义的签名必...
The steps in this article mentioned query criteria and expressions. A query criterion is a rule that identifies the records that you want to include in a query, and you use criteria when you do not want to see all the records in a given set of data. For example, the criterion>25 AND...
The following options are used when processing default value expressions: ALWCPYDTA, CONACC, DATFMT, DATSEP, DECFLTRND, DECMPT, DECRESULT, DFTRDBCOL, LANGID, SQLCURRULE, SQLPATH, SRTSEQ, TGTRLS, TIMFMT, and TIMSEP. The options CNULRQD, CNULIGN, COMPILEOPT, EXTIND, NAMING, and SQLCA...
If this rule is a match should the rules engine continue running the remaining rules or stop. If not present, defaults to Continue. OriginGroupOverride 定义源组重写配置的参数。 OriginGroupOverrideAction 定义传递规则的源组替代作。 OriginGroupOverrideActionParameters 定义源组重写作的参数。 paramIndi...