Which four are valid Oracle constraint types? ()A. CASCADEB. UNIQUEC. NONUNIQUED. CHECKE. PRIMARY KEYF. CONSTANTG. NOT NULL

题目
Which four are valid Oracle constraint types? ()

A. CASCADE

B. UNIQUE

C. NONUNIQUE

D. CHECK

E. PRIMARY KEY

F. CONSTANT

G. NOT NULL

相似考题

1.As used in this passage，the word “valid” in the second paragraph means______A. foreignB. 1egalC. monetaryD. illegal

2.在一个NSD的Definition文件夹中,会有哪两个文件,用来定义网络业务的节点类型和属性?()A.TOSCA-Normative-Types-Definitions.yamlB.vercfg.xmlC.NSD-Types-Definitions.yamlD.service.desc

3.Please tell us how long this price list () valid.A、remainB、keepC、isD、being

4.Proper lubrication of the main bearings is more easily obtained in a single acting, four-stroke/cycle diesel engine than in a tow-stroke/cycle diesel engine because________.A.The direction of pressure on the journal in four-stroke engine is continuouslyB.positive feed lubricators are installed on all bearings of four-stroke engine, whereas as a splash feed system is used on tow-stroke engineC.four-stroke engines usually utilize a heavier grade of oil than tow-stroke enginesD.Low-stroke engines usually consume less lube oil than four-stroke engines

更多“Which four are valid Oracle constraint types? () ”相关问题

  • 第1题：

    Giventhetwosecurityconstraintsinadeployment&ensp

    Giventhetwosecurityconstraintsinadeploymentdescriptor：

    101.<security-constraint>

    102.<!--acorrecturl-patternandhttp-methodgoeshere-->

    103.<auth-constraint><role-name>SALES</role-name></auth-.<auth-constraint>

    104.<role-name>SALES</role-name>

    105.</auth-constraint>

    106.</security-constraint>

    107.<security-constraint>

    108.<!--acorrecturl-patternandhttp-methodgoeshere-->

    109.<!--Insertanauth-constrainthere-->

    110.</security-constraint>

    Ifthetwosecurityconstraintshavethesameurl-patternandhttp-method

    whichtwo insertedindependentlyatline109，willallowuserswithrolenamesofeitherSALESorMARKETINGtoaccessthisresource？（）


    参考答案：B, D

  • 第2题：

    Youareresponsibleforadatawarehouseapplicationthatusesrecordsfromanexternaltabletoupdateoneofthedimensiontablesperiodically.Therecordsintheexternaltablemaycontaindatafornewrowsinthedimensiontable，orforupdatestoitsexistingrows.WhichtypeofSQLcommandwouldyouusetotransferthedatafromtheexternaltabletothedimensiontableasefficientlyaspossible？（）

    A.MERGE

    B.SELECT…CROSSJOIN

    C.INSERTALL…SELECT

    D.CREATEVIEW…CONSTRAINT


    参考答案：A

  • 第3题：

    The neighborhood boys like to play basketball on that（ ）lot.

    A.vague
    B.vacant
    C.vain
    D.valid

    答案：B
    解析：
    句意：附近的男孩子们喜欢在那块空地上打篮球。A.vague意为“模糊不清的，不明确的”，C.vain指“徒然的；虚荣的”，D.valid指“正当的，有效的”。这三个词都不合题意，只有vacant是“空着的，无人的”意思，a vacant lot就是“空地”。

  • 第4题：

    Which view shows all valid values for the NLS_LANGUAGE, NLS_SORT, NLS_TERRITORY,and NLS_CHARACTERSET parameters?()

    A. V$VALID_NLS_VALUES

    B. NLS_VALID_VALUES

    C. NLS_VALUE_OPTIONS

    D. V$NLS_VALUE_OPTIONS

    E. V$NLS_VALID_VALUES


    参考答案：E

  • 第5题：

    在Oracle中,()程序包中提供了所有预定义的异常的定义。

    A.DBMS_STANDARD

    B.DBMS_STD

    C.DBMS_SQL

    D.DBMS_TYPES


    参考答案：D

  • 第6题：

    下列给字符串二维数组进行赋值的语句中，错误的是（）。

    A．String s[ ] [ ] = new String [ ] [ ] { { “One “ , “ Two “ }, { “ Three “ , “ Four “ } } ;

    B．String s[ ] [ ] = { { “ One “ , “Two “},{ “ Three “ , “ Four “ } } ;

    C．String s[ ] [ ] = new String [ ] [ ] { { “Zero”} , { “ One ” , “Two” , “ Three” , “ Four” } } ;

    D．String s[ 2] [2 ] = { { “ One ” , “Two”},{“ Three” , “ Four” } } ;


    String s[ 2] [2 ] = { { “ One ” , “Two”},{“ Three” , “ Four” } } ;

相关内容