The multithreaded agent architecture for heterogeneous services is similar to the Oracle multithreaded server architecture. The principal difference is that it used threads instead of processes. What are thee kinds of threads that it uses?()
第1题:
SQL中,“AGE IN(15,35)”短语的正确含义是( )。
A.AGE=15 AND AGE=35
B.AGE=15 OR.AGE=35
C.AGE<=35 AND AGE>=15
D.AGE<35 AND AGE>15
第2题:
SQL中,“AGE IN(15,35)”短语的正确含义是
A.AGE=15 AND AGE=35
B.AGE=15 OR AGE=35
C.AGE<=35 AND AGE>=15
D.AGE<35 AND AGE>15
第3题:
A.age=0
B.age=null
C.age=
D.程序编译错误
第4题:
根据SQL标准,要修改表student中所有学生的年龄age,使之在原值基础上减一,下面哪个语句适用?()
A update student set age = 1
B update student set age = age - 1
C update age = age -1 from student
D update from student where age = age -1
第5题:
根据SQL标准,下面哪条语句与select min(age) from student等效?()
A select age from student where age >= min(age)
B select distinct age from student where age >= all min(age)
C select distinct a.age from student a where a.age<= any (select distinctb.age from student b)
D select distinct a.age from student a where a.age<= all (select distinct b.age from student b)
第6题:
在Visual FoxPro中,使用SQL命令将学生表STUDENT中的学生年龄AGE字段的值增加1岁,应该使用的命令是A)REPLACEAGE WITH AGE+1B)UPDATE STUDENT AGE WITH AGE+1C)UPDATE SET AGE WITH AGE+1D)UPDATE STUDENT SET AGE=AGE+1
第7题:
与WHERE AGE BETWEEN 18 AND 23完全等价的是( )。
A.WHERE AGE>18AND AGE
B.WHERE AGE>=18AND AGE
C.WHERE AGE>18AND AGE
D.WHERE AGE>=18AND AGE
第8题:
在VisualFoxPro中,使用SQL命令将学生STUDENT中的学生年龄AGE字段的值增加1岁,应该使用的命令是()。
第9题:
使用SQL命令将学生表STUDENT中的学生年龄AGE字段的值增加1岁,应该使用的命令是()。
第10题:
A .REPLACE AGE WITH AGE+5
B .UPDATE STUDENT AGE WITH AGE+5
C .UPDATE SET AGE WITH AGE+5
D .UPDATE STUDENT SET AGE=AGE+5
第11题:
TCP
Task
Monitor
Dispatcher
Shared Server
Shutdown address
第12题:
在数据库查询语句中,“age between 30 and 40”等同于( ) (1.0分) [单选.]
A. age>=30 or age<=40 B. age>=30 and age<=40 C. age>30 and age<40 D. age>30 or age<40
答案:B
第13题:
在SQL中,下列涉及空值的操作中不正确的——。
A.AGE IS NULL
B.AGE IS NOT NULL
C.AGE=NULL
D.NOT(AGE IS NULL)
第14题:
17 ) SQL 中, " AGE IN ( 15 , 35 ) " 短语的正确含义是
A ) AGE = 1 5 AND AGE = 35
B ) AGE = 1 5 OR AGE = 35
C ) AGE < = 35 AND AGE > = 15
D ) AGE < 3 5 AND AGE > 15

第15题:
根据SQL标准,要查询表student中平均年龄age小于21的所在系dept及其平均年龄值,下面哪条语句适用?()
A select dept,avg(age) from student where avg(age)<21
B select dept,avg(age) from student group by dept having avg(age)<21
C select dept,avg(age) from student having avg(age)<21
D select dept,avg(age) from student group by dept where avg(age)<21
第16题:
根据SQL标准,下面哪句语句能够找出年龄最小的同学?其中age为学生表student中的年龄字段,sno为学生的学号。()
A select max(age) from student
B select sno from student where age = max(age)
C select sno from student having age = max(age)
D select sno from student a where a.age<= (select min(b.age) from student b)
第17题:
A. Thread creation must be routed through a dispatcher process
B. The local listener may spawn a now process and have that new process create a thread
C. Each Oracle process runs an SCMN thread.
D. Each multithreaded Oracle process has an SCMN thread.
E. The local listener may pass the request to an existing process which in turn will create a thread.
第18题:
已知一个人出生的年、月、日分别存放在变量y0、m0、d0中,当前日期的年、月、日分别存放在变量y1、m1、d1中,这个人的实足年龄存放在变量age中。则以下可以正确计算实足年龄的程序段是
A.age=y1-y0 If m1<m0 Then age=age-1 ElseIf d1<d0 Then age=age-1 End If
B.age=y1—y0 If m1<m0 Or d1<d0 Then age=age-1 End If
C.age=y1-y0 If m1<m0 Then age=age-1 End If If m1=m0 And d1<d0 Then age=age-1 End If
D.age=y1-y0 If m1<m0 Then age=age-1 End If If d1<d0 Then age=age-1 End If
第19题:
检索所有比“王华”年龄大的学生姓名、年龄和性别。正确的SELECT语句是______。
A.SELECT SN,AGE,SEX FROM S WHERE AGE>(SELECT AGE FROM S WHERE SN='王华')
B.SELECT SN,AGE,SEX FROM S WHERE SN='王华'
C.SELECT SN,AGE, SEX FROM S WHERE AGE>(SELECT AGE WHERE SN='王华')
D.SELECT SN,AGE,SEX FROM S WHERE AGE>王华 AGE
第20题:
在Visual FoxPro中,使用SQL命令将学生表STUDENT中的AGE字段的值增加5岁,应使用的命令是()。
第21题:
class MyApp{ public static void main(String[] args){ int age; System.out.println(“age=”+age); } } 执行上述代码后输出的结果是哪项?()
第22题:
SORT BY age ASC, last_name
SORT BY age DESC, last_name
ORDER BY age DESC, last_name
ORDER BY age ASC, last_name
第23题:
A single role instance that processes messages individually
A single role instance with multithreaded request processing
Multiple role instances that process messages individually
Multiple role instances, each with multithreaded request processing