更多"在Access中使用带参数查询时,表达式中的关键字LIKE表明是一种模"的相关试题:
[单项选择]在Access中使用带参数查询时,表达式中的关键字Like表明是一种模糊查询,其后可带 (66) 两种通配符。
A. !和*
B. $和
C. #和$
D. *和
[单项选择]要在查找表达式中使用通配符通配一个数字字符,应选用的通配符是______。
A. *
B. !
C. #
[填空题]在Access查询的条件表达式中要表示任意单个字符,应使用通配符()。
[填空题]根据表达式值的类型,表达式可分为数值表达式、字符表达式、日期时间表达式、逻辑表达式;而大多数 【6】 表达式是带比较运算符的关系表达式。
[单项选择]在配置访问控制列表的规则时,关键字“any”代表的通配符掩码是______。
A. 0.0.0.0
B. 0.0.0.1
C. 255.255.255.255
D. 无此命令关键字
[单项选择]对表达式for(表达式1;;表达式3) 可理解为
A. for(表达式1;0;表达式3)
B. for(表达式1;1;表达式3)
C. for(表达式1;表达式3;)
D. for(;;表达式3)
[单项选择]关于for(表达式1;表达式2;表达式3),叙述正确的是( )
A. 表达式1不可以缺省
B. 表达式2不可以缺省
C. 表达式3不可以缺省
D. 三个表达式都可以缺省
[单项选择]如果在进行SQL查询时为了使得返回的结果集中某些字段互不相同,需要使用关键字( )。
A. IN
B. DISTINCT
C. TOP
D. AND
[单项选择]数学表达式 对应的VB表达式是()。
A. (e^(2*∏*x—5)*Log(x)+(Sin(2x))^3)/Sqr(Sin(x)-Cos(x^2))
B. (Exp(2*3.14159*x一5)*Log(x)+(Sin(2*x))^3)/Sqr(Sin(x)一Cos(x^2))
C. (Exp(2*∏*x—5)*Ln(x)+(Sin(2*x))^3)/Sqr(Sin(x)—Cos(x^2))
D. e^(2*3.14159*x一5)*Ln(x)+(Sin(2*x))^3)/Sqr(Sing(x)—Cos(x^2))
[单项选择]
Traditional Internet access methods like dial-up were so slow that host computers were connected to the dial-up (1) at the customer premise over slow (2) ports. PPP was designed to run directly over these serial links. But with the advent of broadband Internet (3) technologies such as ADSL and cable modems there has been a considerable increase in the bandwidth delivered to the end users. This means that the host computers at the customer premise connect to the (4) or cable "modem" over a much faster medium such as Ethernet. It also means that multiple (5) can connect to the Internet through the same connection.
(4)应填入()
A. FDDI
B. HDSL
C. ADSL
D. CDMA