Which syntax turns an existing constraint on?（）A、ALTER TABLE table_name ENABLE constraint_name;B、ALTER TABLE table_name STATUS = ENABLE CONSTRAINT constraint_name;C、ALTER TABLE table_name ENABLE CONSTRAINT constraint_name;D、ALTER TABLE table_name

题目

Which syntax turns an existing constraint on?（）

  • A、ALTER TABLE table_name   ENABLE constraint_name;
  • B、ALTER TABLE table_name   STATUS = ENABLE CONSTRAINT constraint_name;
  • C、ALTER TABLE table_name   ENABLE CONSTRAINT constraint_name;
  • D、ALTER TABLE table_name   STATUS ENABLE CONSTRAINT constraint_name;
  • E、ALTER TABLE table_name   TURN ON CONSTRAINT constraint_name;
相似考题

1.Of the existing theories about the origin of carnival ，people are not sure which theory is more true to the fact.()

2.The man page for command shows the following syntax: The man page for command shows the following syntax: command [ －a | －b ] Which of the following statements is true regarding this entry?()A. Either the -a or flag -b may be used, but not both.B. If the flag -a is used then the flag -b also must be used.C. One of the -a or -b flags must be used, but not both at the same time.D. Both the flags may be used together, but neither are mandatory.

3.Stressful environments lead to unhealthy behaviors such as poor eating habits, which ________ increase the risk of heart disease.[A] in turn[B] in return[C] by chance[D] by turns

4.Which syntax turns an existing constraint on? ()A. ALTER TABLE table_name ENABLE constraint_name;B. ALTER TABLE table_name STATUS = ENABLE CONSTRAINT constraint _ name;C. ALTER TABLE table_name ENABLE CONSTRAINT constraint _ name;D. ALTER TABLE table_name TURN ON CONSTRAINT constraint _ name;

参考答案和解析
正确答案:C
更多“Which syntax turns an existing c”相关问题

  • 第1题：

    Which of the following is most suitable for the cultivation of linguistic competence?

    A．Sentence-making.
    B．Cue-card dialogue.
    C．Simulated dialogue.
    D．Learning syntax.

    答案：A
    解析：
    考查培养语言能力的手段。在四个选项中，“造句”是最适合培养语言能力的手段。

  • 第2题：

    The factory（）, bicycles a month.

    • A、turns into
    • B、turns up  
    • C、turns in  
    • D、turns out 

    正确答案:D

  • 第3题：

    What are three objectives that the no ip inspect command achieves？（）

    • A、removes the entire CBAC configuration
    • B、removes all associated static ACLs
    • C、turns off the automatic audit feature in SDM
    • D、denies HTTP and Java applets to the inside interface but permits this traffic to the DMZ
    • E、resets all global timeouts and thresholds to the defaults
    • F、deletes all existing sessions

    正确答案:A,E,F

  • 第4题：

    Which of the following is used to connect existing Notes Forms to XPages？（）

    • A、Data Source
    • B、Schema Definition
    • C、Domino Document
    • D、Data Binding

    正确答案:A

  • 第5题：

    Which of the following is not a valid calendaring syntax element?（）

    • A、FREQ
    • B、BYHOUR
    • C、RUNDATE
    • D、INTERVAL
    • E、BYMINUTE

    正确答案:C

  • 第6题：

    Which of the following is the correct syntax to specify the path to a file that generates the strong  type？（）

    • A、<%@ PreviousPageType VirtualPath ="~/MyPage.aspx"% >
    • B、<%@ PreviousPageType VirtualPath ="/MyPage.aspx/ ~"% >
    • C、<%@ PreviousPageType VirtualPath ="~/MyPage.master"% >
    • D、<%@ PreviousPageType VirtualPath ="~/MyPage"% >

    正确答案:A

  • 第7题：

    单选题
    Which syntax turns an existing constraint on? （）
    A

    ALTER TABLE table_name ENABLE constraint_name;

    B

    ALTER TABLE table_name STATUS = ENABLE CONSTRAINT constraint _ name;

    C

    ALTER TABLE table_name ENABLE CONSTRAINT constraint _ name;

    D

    ALTER TABLE table_name TURN ON CONSTRAINT constraint _ name;


    正确答案： D
    解析： 暂无解析

  • 第8题：

    单选题
    Which of the following is not a valid calendaring syntax element?（）
    A

    FREQ

    B

    BYHOUR

    C

    RUNDATE

    D

    INTERVAL

    E

    BYMINUTE


    正确答案： E
    解析： 暂无解析

  • 第9题：

    单选题
    Which of the following is most suitable for the cultivation of linguistic competence?
    A

    Sentence-making.

    B

    Cue-card dialogue.

    C

    Simulated dialogue.

    D

    Learning syntax.


    正确答案： B
    解析：

  • 第10题：

    单选题
    The client connected to the database turns off his or her machine without exiting from a connection to the database. Which type of failure is this？（）
    A

    media

    B

    instance

    C

    statement

    D

    user process


    正确答案： C
    解析： 暂无解析

  • 第11题：

    单选题
    Which of the following is not a valid calendaring syntax element？（）
    A

     FREQ

    B

     BYHOUR

    C

     RUNDATE

    D

     INTERVAL

    E

     BYMINUTE


    正确答案： D
    解析： 暂无解析

  • 第12题：

    单选题
    Which of the following is most suitable for the cultivation of linguistic competence? _____
    A

    Sentence making

    B

    Cue-card dialogue

    C

    Simulated dialogue

    D

    Learning syntax


    正确答案： C
    解析：
    “造句”是最适合培养语言能力的方法之一。

  • 第13题：

    Which one of the following studies the internal structure of words， and the rules by which words are ( ) formed？

    A.Morphology
    B.Syntax
    C.Phonology
    D.Semantics

    答案：A
    解析：
    考查语言学知识。题干为：以下哪一项研究单词的内部结构，以及单词形成的规则？A项Morphology(形态学)研究词的内部结构和构词规则。B项Syntax(句法学)主要研究语言的句子结构。C项Phonology(音系学)研究语音的产生、传播、接受过程，考查人类语言中的声音。D项Semantics(语义学)不仅关心字词作为词汇的意义，还有语言中词之上和之下的意义。

  • 第14题：

    Which Public Key Cryptographic Standards （PKCS） defines the syntax for encrypted messages andmessages with digital signatures？（）

    • A、PKCS #7
    • B、PKCS #8
    • C、PKCS #10
    • D、PKCS #12

    正确答案:A

  • 第15题：

    A technician has just installed an upgraded graphics card. The computers power turns off before itfinishes booting. Which of the following is the cause of the problem? （）

    • A、The monitor cannot display the increased resolution that is a feature of the new graphics card.
    • B、The power supply does not provide enough wattage to power the new graphics card.
    • C、The new graphics card is incompatible with the existing processor.
    • D、The computer does not have enough RAM to support the new graphics card.

    正确答案:B

  • 第16题：

    The man page for command shows the following syntax: The man page for command shows the following syntax: command [ -a | -b ] Which of the following statements is true regarding this entry?（）

    • A、Either the -a or flag -b may be used, but not both.
    • B、If the flag -a is used then the flag -b also must be used.
    • C、One of the -a or -b flags must be used, but not both at the same time.
    • D、Both the flags may be used together, but neither are mandatory.

    正确答案:D

  • 第17题：

    Which syntax turns an existing constraint on? （）

    • A、ALTER TABLE table_name ENABLE constraint_name;
    • B、ALTER TABLE table_name STATUS = ENABLE CONSTRAINT constraint _ name;
    • C、ALTER TABLE table_name ENABLE CONSTRAINT constraint _ name;
    • D、ALTER TABLE table_name TURN ON CONSTRAINT constraint _ name;

    正确答案:C

  • 第18题：

    单选题
    The man page for command shows the following syntax: The man page for command shows the following syntax: command [ -a | -b ] Which of the following statements is true regarding this entry?（）
    A

    Either the -a or flag -b may be used, but not both.

    B

    If the flag -a is used then the flag -b also must be used.

    C

    One of the -a or -b flags must be used, but not both at the same time.

    D

    Both the flags may be used together, but neither are mandatory.


    正确答案： C
    解析： 暂无解析

  • 第19题：

    单选题
    Which of the following is most suitable for the cultivation of linguistic competence? _____
    A

    Sentence making

    B

    Cue card dialogue

    C

    Simulated dialogue

    D

    Learning syntax


    正确答案： C
    解析：
    “造句”考察学生语法、词汇等多方面的能力，是最适合培养语言能力的手段。

  • 第20题：

    单选题
    Which Public Key Cryptographic Standards （PKCS） defines the syntax for encrypted messages andmessages with digital signatures？（）
    A

    PKCS #7

    B

    PKCS #8

    C

    PKCS #10

    D

    PKCS #12


    正确答案： B
    解析： 暂无解析

  • 第21题：

    单选题
    A technician has just installed an upgraded graphics card. The computers power turns off before itfinishes booting. Which of the following is the cause of the problem? （）
    A

    The monitor cannot display the increased resolution that is a feature of the new graphics card.

    B

    The power supply does not provide enough wattage to power the new graphics card.

    C

    The new graphics card is incompatible with the existing processor.

    D

    The computer does not have enough RAM to support the new graphics card.


    正确答案： A
    解析： 暂无解析

  • 第22题：

    单选题
    A company wants to expand their storage capacity in a flexible manner over their existing network.Which of the following storage solutions would they consider？（）
    A

    External RAID array on an existing server

    B

    Network Attached Storage

    C

    Storage Area Network

    D

    Tape library


    正确答案： D
    解析： 暂无解析

  • 第23题：

    单选题
    Which syntax turns an existing constraint on?（）
    A

    ALTER TABLE table_name   ENABLE constraint_name;

    B

    ALTER TABLE table_name   STATUS = ENABLE CONSTRAINT constraint_name;

    C

    ALTER TABLE table_name   ENABLE CONSTRAINT constraint_name;

    D

    ALTER TABLE table_name   STATUS ENABLE CONSTRAINT constraint_name;

    E

    ALTER TABLE table_name   TURN ON CONSTRAINT constraint_name;


    正确答案： B
    解析： 暂无解析

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