网友您好, 请在下方输入框内输入要搜索的题目:

题目内容 (请给出正确答案)
Which two statements about views are true? ()

A. A view can be created as read only.

B. A view can be created as a join on two or more tables.

C. A view cannot have an ORDER BY clause in the SELECT statement.

D. A view cannot be created with a GROUP BY clause in the SELECT statement.

E. A view must have aliases defined for the column names in the SELECT statement.


参考答案

更多 “ Which two statements about views are true? () A. A view can be created as read only.B. A view can be created as a join on two or more tables.C. A view cannot have an ORDER BY clause in the SELECT statement.D. A view cannot be created with a GROUP BY clause in the SELECT statement.E. A view must have aliases defined for the column names in the SELECT statement. ” 相关考题
考题 要使摄像机的构图与透视视口的构图一样,需要使用哪个命令()。 A、Views/Match Camerato ViewB、Views/Show Transform. GizmoC、Views/Show BackgroundD、Views/Show Key Times

考题 下列CASE语句中执行结果不为空的是() A、SELECTCASEWHEN125THEN'true'ELSE'false'END;B、SELECTCASEBINARY'B'WHEN'a'THEN1WHEN'b'THEN2END;C、SELECTCASEWHEN-10THEN'true'END;D、SELECTCASE'one'WHEN1THEN'one'WHEN2THEN'two'END;

考题 i need a _______________ milk for this recipe. A. two-litre carton ofB. two litres carton ofC. two-litres-carton ofD. two-litre carton

考题 The professor asked us to write a _____________ report.A、two-hundreds-wordsB、two-hundreds-wordC、two-hundred-wordsD、two-hundred-word

考题 Whichdependentobjectwillgetinvalidatedevenifitisnotaffectedbythetableedefinition?() A.packagesB.triggersC.synonymsD.views

考题 下列复选框构造方法,错误的是 ( )A.setLayout(new GridLayout(3,1));B.add(new Checkbox("one",null,true));C.add(new Checkbox("two"));D.add(new Checkbox("one",true));

考题 下列复选框构造方法,错误的是()。A.setLayout(newGridLayout(3,1));B.add(newCheckbox("one",null,true));C.add(newCheckbox("tWO");D.add(newCheckbox("one",true);

考题 About ________ of the workers in the factory were born in the ________.A.two-thirds, 1970 B.two-thirds, 1970s C.two-third,1970 D.two-third, 1970s

考题 12. About_______ of the workers in the factory were born in the __________.A. two- thirds;1970B. two- thirds ; 1970sC. two-third ; 1970D. two-third ; 1970s

考题 Norman Blarney is an artist of deep convictions.A: claims B:suggestions C: beliefs D:statements