以下不能开启事件调度器的语句是()。
A: SELECT@@EVENT_SCHEDULER;
B: SET GLOBAL EVENT_SCHEDULER=1;
C: SET GLOBAL EVENT_SCHEDULER=TRUE;
D: SET GLOBAL EVENT_SCHEDULER=ON;
A: SELECT@@EVENT_SCHEDULER;
B: SET GLOBAL EVENT_SCHEDULER=1;
C: SET GLOBAL EVENT_SCHEDULER=TRUE;
D: SET GLOBAL EVENT_SCHEDULER=ON;
举一反三
- 开启事件调度器功能的命令是( )。 A: Set global event_scheduler=1 ; B: Set global event_scheduler=0; C: Set event_scheduler=1; D: Set event_scheduler=ON;
- 哪个是 Map-Reduce 的默认调度策略? A: Fair Scheduler B: Capacity Scheduler C: FIFO D: Deadline Scheduler E: Constraint-based Scheduler
- 下列选项中定义全局变量的语句正确的是( ) A: SET GLOBAL VAR_NAME=VALUE B: SET @GLOBAL VAR_NAME=VALUE C: SET @@GLOBAL VAR_NAME=VALUE D: SET GLOBAL.VAR_NAME=VALUE
- Hadoop2.0,FIFO Scheduler是YARN中默认的资源调度器
- When Americans plan an event, they usually set the time days, a week or even a month ____________.