logo - 刷刷题
下载APP
【单选题】

对表“职工”执行命令: SELECT 姓名 TOP 5 PERCENT FROM 职工; ORDER BY 工资 DESC 该命令的功能是( )。

A.
显示工资最高的前5%的职工姓名
B.
显示工资最高的前5名的职工姓名
C.
显示工资最低的前5%的职工姓名
D.
显示工资最低的前5名的职工姓名
题目标签:执行命令功能
举报
参考答案:
参考解析:
.
刷刷题刷刷变学霸
举一反三

【单选题】有如下事件过程:Private Sub Form_Load() Show Dim Arr() As Variant Arr = Array(1, 3, 5, 7, 9, 11, 13, 15) Call converse(Arr) For i = 0 To 7 Print arr(i); Next iEnd Sub 以上程序的功能是,通过调用Converse过程,将数组Arr中的元素逆序存放并输出...

A.
Private Sub converse(dim a() as Variant ) Dim T For i = LBound(A) To UBound(A) T = a(i) a(i) = a(UBound(A) - i) a(UBound(A) - i) = T Next i End Sub
B.
Private Sub converse(dim a() as Variant) Dim T Dim J As Integer J = (LBound(A) + UBound(A)) / 2 For i = LBound(A) To J T = a(i) a(i) = a(UBound(A) - i) a(UBound(A) - i) = T Next i End Sub
C.
Private Sub converse(a() As Variant) Dim T For i = LBound(A) To UBound(A) T = a(i) a(i) = a(UBound(A) - i) a(UBound(A) - i) = T Next i End Sub
D.
Private Sub converse(a() As Variant) Dim T Dim J As Integer J = Int((LBound(A) + UBound(A)) / 2) For i = LBound(A) To J T = a(i) a(i) = a(UBound(A) - i) a(UBound(A) - i) = T Next i End Sub

【多选题】监控平台有哪些功能?

A.
管理设备
B.
用户权限管理
C.
数据流管理
D.
录像存储管理
E.
与其它系统联动

【单选题】对美工文本执行“文本适合路径”命令,然后把路径删除,说法正确的是()

A.
影响文本,文本恢复原样
B.
不影响文本,文本仍受先前路径的影响
C.
必须把文本和路径打散后,才能删除路径不影响文本
D.
必须把文本和路径打散后,才能删除路径仍会影响文本

【单选题】删除视图myview的命令是______。

A.
DELETE myview
B.
DELETE VIEW myview
C.
DROP VIEW myview
D.
REMOVE VIEW myview