In which case would you use a FULL OUTER JOIN? ()A. Both tables have NULL values.B. You want all unmatched data from one table.C. You want all matched data from both tables.D. You want all unmatched data from both tables.E. One of the tables has more data

题目
In which case would you use a FULL OUTER JOIN? ()

A. Both tables have NULL values.

B. You want all unmatched data from one table.

C. You want all matched data from both tables.

D. You want all unmatched data from both tables.

E. One of the tables has more data than the other.

F. You want all matched and unmatched data from only one table.

相似考题

1.You’ll be punished by law if you ________ your child.(A) use(B) abuse(C) used(D) abused

2.7． If I _______ you，l_______ take an umbrella with me．A． was ; shouldB． was ; wouldC． were ; willD． were ; would

3.If you don’t like to swim, you _____as well stay at home.A)should B)may C)can D)would

4.”You ____ have a wrong number,” she said. “There’s no one of that name here.”A. needB. canC. mustD. would

参考答案和解析
参考答案：D
更多“In which case would you use a FULL OUTER JOIN? () ”相关问题

  • 第1题：

    "You _________ finish your homework before the dinner." said mother.

    A.should

    B.have to

    C.must

    D.would


    参考答案：C

  • 第2题：

    “You ____ have a wrong number,” she said. “There’s no one of that name here.”

    A. need

    B. can

    C. must

    D. would


    正确答案：C
    解析：must have意思是肯定有什么，依题意可得，答案是C。

  • 第3题：

    25、pgSQL中内联接用INNER而外联接用OUTER，默认为INNER；LEFT、RIGHT、FULL均隐含外联接。


    A

  • 第4题：

    Oneoftheusecasesinyourwebapplicationusesmanysession-scopedattributes.Attheendoftheusecase，youwanttoclearoutthissetofattributesfromthesessionobject.Assumethatthisstaticvariableholdsthissetofattributenames：201.privatestaticfinalSetUSE_CASE_ATTRS；202.static{203.USE_CASE_ATTRS.add（"customerOID"）；204.USE_CASE_ATTRS.add（"custMgrBean"）；205.USE_CASE_ATTRS.add（"orderOID"）；206.USE_CASE_ATTRS.add（"orderMgrBean"）；207.}Whichcodesnippetdeletestheseattributesfromthesessionobject？（）

    A.session.removeAll（USE_CASE_ATTRS）；

    B.for（Stringattr：USE_CASE_ATTRS）{session.remove（attr）；}

    C.for（Stringattr：USE_CASE_ATTRS）{session.removeAttribute（attr）；}

    D.for（Stringattr：USE_CASE_ATTRS）{session.deleteAttribute（attr）；}

    E.session.deleteAllAttributes（USE_CASE_ATTRS）；


    参考答案：C

  • 第5题：

    pgSQL中内联接用INNER而外联接用OUTER，默认为INNER；LEFT、RIGHT、FULL均隐含外联接。


    正确

  • 第6题：

    135、pgSQL中内联接用INNER而外联接用OUTER，默认为INNER；LEFT、RIGHT、FULL均隐含外联接。


    C

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