题目内容
(请给出正确答案)
[单选题]
以下哪个命令用于查看SQL语句会作用于哪些分区()
A.EXPLAIN
B.GLOBALSTATUS
C.EXPLAINDEFINATION
D.EXPLAINPARTITIONS
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A.EXPLAIN
B.GLOBALSTATUS
C.EXPLAINDEFINATION
D.EXPLAINPARTITIONS
A.selectfirstname+'.'+lastnameas'name'fromemployee
B.selectfirstname+'.'+lastname='name'fromemployee
C.select'name'=firstname+'.'+lastnamefromemployee
D.selectfirstname,lastnamefromemployee
A.Updategradesetscore=score+5
B.Updategradesetscore=score+5wherescore>=55orscore<=60
C.Updategradesetscore=score+5wherescorebetween55and60
D.Updategradesetscore=score+5wherescore>=55andscore<=60
A.ceph osd dump
B.ceph osd pool get {pool_name} size
C.ceph pg dump
D.以上选项都能看