YouaremaintainingthePRODdatabaseofTeleSoftCorporation.YouhaveinitializedthefollowingDB_BLOCK_CHECKINGparameterintheinit.orafile:DB_BLOCK_CHECKING=TRUE;Whatwillbetheresultofsettingthisparameter?()A.OnlydatablocksoftheSYSTEMtablespacewillbechecked.B.Onlydat

题目
YouaremaintainingthePRODdatabaseofTeleSoftCorporation.YouhaveinitializedthefollowingDB_BLOCK_CHECKINGparameterintheinit.orafile:DB_BLOCK_CHECKING=TRUE;Whatwillbetheresultofsettingthisparameter?()

A.OnlydatablocksoftheSYSTEMtablespacewillbechecked.

B.OnlydatablocksoftheSYSAUXtablespacewillbechecked.

C.Achecksumwilloccuronlyonthecheckpoint.

D.Achecksumwilloccureverytimeablockismodified.


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  • 第1题:

    下列选项中,执行时不会报错的语句是()。

    A.{['Python',True]}

    B.{3.5,[1.2,True]}

    C.{3.5,{1.2,True}}

    D.{3.5,1.2,True}


    {3.5,1.2,True}

  • 第2题:

    2、下列选项中,执行时不会报错的语句是()。

    A.{['Python',True]}

    B.{3.5,[1.2,True]}

    C.{3.5,{1.2,True}}

    D.{3.5,1.2,True}


    D

  • 第3题:

    【单选题】以下命令的输出是什么?grepl(“neeraj”,c(“dheeraj”,”Neeraj”,”neeraj”,”is”,”NEERAJ”))

    A.["FALSE ","TRUE ","TRUE ","FALSE ",true]

    B.["FALSE ","TRUE ","TRUE ","FALSE ",false]

    C.["FALSE ","FALSE ","TRUE ","FALSE ",false]

    D.None of the above


    grep命令仅能从用户的标准输入中进行正则匹配

  • 第4题:

    下面哪个函数可以返回逻辑值TRUE()

    A.AND(TRUE, TRUE, FALSE)

    B.OR(TRUE, TRUE, FALSE)

    C.OR(FALSE, FALSE, FALSE)

    D.NOT(TRUE)


    OR(TRUE,TRUE,FALSE)

  • 第5题:

    45、下面哪个函数可以返回逻辑值TRUE。

    A.AND(TRUE, TRUE, FALSE) 

    B.OR(TRUE, TRUE, FALSE)

    C.OR(FALSE, FALSE, FALSE)

    D.NOT(TRUE)


    OR(TRUE,TRUE,FALSE)