What is necessary for your query on an existing view to execute successfully? ()A. The underlying tables must have data.B. You need SELECT privileges on the view.C. The underlying tables must be in the same schema.D. You need SELECT privileges only on the

题目
What is necessary for your query on an existing view to execute successfully? ()

A. The underlying tables must have data.

B. You need SELECT privileges on the view.

C. The underlying tables must be in the same schema.

D. You need SELECT privileges only on the underlying tables.

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更多“What is necessary for your query on an existing view to execute successfully? () ”相关问题

  • 第1题：

    WhichthreevaluesarevalidparametersfortheDO_KEYbuilt－in?()

    A.ENTER

    B.GO_ITEM

    C.VALIDATE

    D.EXIT_FORM

    E.EXECUTE_QUERY


    参考答案：A, D, E

  • 第2题：

    We occasionally meet for a drink after work.

    A:accidentally
    B:regularly
    C:sometimes
    D:successfully

    答案：C
    解析：
    本句意思：下班后我们偶尔相聚小酌。occasionally意为“偶尔，有时候”，与sometimes（有时）意思相近。accidentally意外地，偶然地；regularly定期地，有规律地；successfully成功地。

  • 第3题：

    Universities usually give diplomas or certificates to students who complete course require-ments adequately.

    A: responsibly
    B: sufficiently
    C: patiently
    D: successfully

    答案：B
    解析：
    句意为：大学将给已经圆满地完成了课程学习要求的学生颁发文凭或证书。ade-quate意为“适当的，足够的”，该词在含义上与sufficient“充分的，足够的”接近，因此它们分另，J对应的副词adequately和sufficiently也是一组近义词，因此答案为B。 responsi-bly意为“有责任地，可靠地”;patiently意为“有耐心地”;successfully意为“成功地，顺利地”。

  • 第4题：

    （ ） – Is Miss White __________ English teacher, Maria?

    – No, she teaches __________ geography.

    A．your；my

    B．you；mine

    C．you；us

    D．your；us


    正确答案：D

  • 第5题：

    Sulphur has occasionally been found in the earth in an almost pure state.

    A:regularly
    B:accidentally
    C:sometimes
    D:successfully

    答案：C
    解析：
    本句话的意思：“地球上偶然发现了几乎纯态的硫。,, occasionally与sometimes意思相近，意为“有时，偶尔”，如：I drink coffee only occasionally.我只是偶尔才喝咖啡。 regularly意为“定期地，有规律地”，如：The doctor told him to check his blood pressure regularly.大夫要他定期地查血压。accidentally意为“意外地，偶然地”，如：I accidentally found the book I had been looking for．我偶然发现了我一直想要的书。successfully意为“成功地”，如：We have completed the experiment successfully.我们成功地做完了实验。

  • 第6题：

    下面是Statement接口中常用的执行SQL语句的方法，哪些说明是正确的？（）

    A．execute(String sql)用于执行各种SQL语句，该方法返回一个boolean类型的值

    B．executeUpdate(String sql) 用于执行SQL中的query、insert、update和delete语句

    C．executeQuery(String sql) 用于执行SQL中的query语句

    D．executeUpdate(String sql) 用于执行各种SQL并返回 int类型结果


    ABD

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