更多"[单选题]现有手机表Phone，包含字段：p_price（手机价格），"的相关试题:
[单选题]现有分数表score，包含字段：s_id(编号),c_id(科目编号),s_score(分数),哪条SQL（）可以正确查询查询平均成绩大于60分的学生的学号和平均成绩
A.SELECT s_id,AVG(s_score)
FROM score
GROUP BY s_id
HAVING AVG(s_score)>60;
B.SELECT s_id,AVG(s_score)
FROM score
GROUP BY s_id
AND AVG(s_score)>60;
C.SELECT s_id,AVG(s_score)
FROM score
ORDER BY s_id
HAVING AVG(s_score)>60;
D.SELECT s_id,AVG(s_score)
FROM score
GROUP BY c_id
HAVING AVG(s_score)>60;
[单选题]现有书目表book，包含字段：价格price ,类别名称typeName; 现在查询各个类别的平均价格、类别名称，以下语句正确的是（）。
A.select avg(price),type from book group by typeName
B.select count(price),type from book group by typeName
C.select avg(price),type from book group by typeName
D.select count (price),type from book group by typeName
[单选题]现有书目表book，包含字段：价格price (float)，类别type(char); 现在查询各个类别的平均价格、类别名称，以下语句正确的是（）
A.select avg(price),type from book group by type
B.select count(price),type from book group by price
C.select avg(price),type from book group by price
D.select count (price),type from book group by type
[单选题]现有产品表Product，包含字段price（价格），productName（产品名称），cateId（分类编号），以下哪条SQL是查询每个分类的产品总数（）。
A.select cateId 产品分类,count(productName) 产品数量 from Product group by cateId
B.select cateId 产品分类,sum(productName) 产品数量 from Product group by cateId
C.select cateId 产品分类,count(productName) 产品数量 from Product group by productName
D.select cateId 产品分类,max(productName) 产品数量 from Product group by cateId
[单选题]现有教师表teacher，包含字段:t_id(教师编号)，t_name(教师姓名),下列哪条SQL（）可以正确查询姓“王”的老师的个数
A.SELECT SUM(t_id)
FROM teacher t
WHERE t_name LIKE '王%'
B.SELECT COUNT(t_id)
FROM teacher t
WHERE t_name LIKE '王%'
C.SELECT COUNT(t_id)
FROM teacher t
WHERE t_name = '王%'
D.SELECT COUNT(t_id)
FROM teacher t
WHERE t_name LIKE '王_'
[单选题]现有课程表course，包含字段：c_id（课程编号），c_name（课程名称），c_date（开课日期），查询course表中的前5行，正确的语法是（）。
A.select top 5 * from course
B.select top(5) from course
C.select top 5 from course
D.select top(5*) from course
[单选题]现有汽车销售表c_orders，包含字段：c_id（订单编号），c_date（订单日期），c_price（订单金额），c_customer（客户姓名）,可以查找每个客户总金额的是（）。
A.SELECT c_customer,SUM(c_price) FROM c_orders
GROUP BY c_customer
B.SELECT c_customer,SUM(c_price) FROM c_orders
GROUP BY c_id
C.SELECT c_customer,COUNT(c_price) FROM c_orders
GROUP BY c_customer
D.SELECT c_customer,SUM(c_price) FROM c_orders
Order BY c_customer
[单选题]在SQL Server 2005中,学生表student中包含字段: 学生编号sid(主键),学生姓名sName, 现在查询所有姓名重复的记录,以下语句正确的是（选一项）
A.select * from student where count(sid)>1
B.select a. * from student a,student b where a.sname=b.sname
C.select * from student where count(sid)>1 group by sName
D.select * from student group by sName having count(sid)>1
[单选题]现有产品表Products，包含字段：UnitPrice（商品单价），ProductId（产品编号），ProductName（商品名称），ProductClass（产品类别），从产品表Products中查询单价UnitPrice最高的商品单价，正确的SQL是（）。
A.SELECT MIN (UnitPrice) AS 最高单价 FROM Products
B.SELECT AVG (UnitPrice) AS 最高单价 FROM Products
C.SELECT MAX (UnitPrice) AS 最高单价 FROM Products
D.SELECT MAX UnitPrice AS 最高单价 FROM Products
[单选题]SQLServer2005中, 有一个book(图书)表,包含字段:bookID(图书编号),title(书名), pDate(出版日期), author (作者) 等字段, 其中( )字段作为该表的主键是最恰当的（选一项）
A.bookID
B.title
C.pDate
D.author
[单选题]在SQL Server 2005中，假定grade(成绩)表中包含字段：eID(班级编号)、lang(语文课成绩)、math(数学课成绩)、eng(英语课成绩)，那么计算不同班级几门课程的平均成绩的SQL语句是（选一项）
A.SELECT eID, AVG(lang,math,eng) FROM grade GROUP BY lang,math,eng
B.SELECT Eid, AVG(lang),AVG(math),AVG(eng) FROM grade GROUP BY lang,math,eng
C.SELECT eID, AVG(lang,math,eng) FROM grade GROUP BY eID
D.SELECT eID,AVG(lang),AVG(math),AVG(eng) FROM grade GROUP BY eID
[多选题]现有书目表book，包含字段：price (float); 现在查询一条书价最高的书目的详细信息，以下语句正确的是哪两项？
A.select top 1 * from book order by price asc
B.select top 1 * from book order by price desc
C.select top 1 * from book where price= (select max (price)from book)
D.select top 1 * from book where price= max(price)
[多选题]现有图书表book，包含字段：price(decimal(6,2));现查询书价最高的图书信息，正确语句是（）。【选两项】
A.select top 1 * from book order by price asc
B.select top 1 * from book order by price desc
C.select top 1 * from book where price=max(price)
D.select top 1 * from book where price=(select max(price) from book)
[单选题]现有饮料表drink，其字段有：id(饮料编号)，price（饮料价格），name（饮料名称）下列（）语句查询结果为饮料最低价格。
A.select max(price) from drink
B.select min(price) from drink
C.select avg(price) from drink
D.select sum(price) from drink
[单选题]现有水果表 Fruit，其字段有：sale(销量)，id（水果编号），price(价格),查询水果表总销量的SQL是（）。
A.SELECT sum(sale) FROM Fruit;
B.SELECT count(sale) FROM Fruit;
C.SELECT max(sale) FROM Fruit;
D.SELECT min(sale) FROM Fruit;
[多选题]现有员工表employee，其字段有：employeeid(员工编号)，gender（员工性别），salary（工资），birthday（生日），name（员工姓名），department（部门），统计1985年1月1日之后出生的员工人数的SQL是（）。【选两项】
A.select count(employeeid) 员工总数 from employee where birthday>'1985-01-01'
B.select count(employeeid) 员工总数 from employee where birthday<'1985-01-01'
C.select sum(employeeid) 员工总数 from employee where birthday>'1985-01-01'
D.select count(*) 员工总数 from employee where birthday>'1985-01-01'
[单选题] 在SQL Server 2005中, 有students (学生)表, 包含字段: STD(学号),SName (姓名), Grade (成绩). 现查找所有学员中成绩最高的前5名学员. 下列SQL语句正确的是（选一项）
A.SELECT TOP 5 FROM students ORDER BY Grade DESC
B.SELECT TOP 5 FROM students ORDER BY Grade
C.SELECT TOP 5 * FROM students ORDER BY Grade ASC
D.SELECT TOP 5 * FROM students ORDER BY Grade DESC
