IfcRecurrenceTypeEnum 类型定义 IfcRecurrenceTypeEnum枚举循环模式类型,有效组合如图所示。 IFC4中的新枚举。 Enumeration definition ConstantDescription DAILY Interval, Occurrences WEEKLY WeekdayComponent, Interval, Occurrences MONTHLY_BY_DAY_OF_MONTH
IfcRecurrenceTypeEnum 类型定义 IfcRecurrenceTypeEnum枚举循环模式类型,有效组合如图所示。 IFC4中的新枚举。 Enumeration definition ConstantDescription DAILY Interval, Occurrences WEEKLY WeekdayComponent, Interval, Occurrences MONTHLY_BY_DAY_OF_MONTH Day
MySQL中的事件EVENT 是根据计划执行的一堆SQL代码,一个具体的例子就是 MySQL数据库定时删除一些过期的数据... 创建一个事件 DELIMITER $$ CREATE EVENT yearly_delete_stale_audit_rows ON SCHEDULE -- AT '2021-09-21' EVERY 1 YEAR STARTS '2019-01-01' ENDS '2029-01
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