BookStore数据库中有客户表Customer(CustomerCode, Name, Sex, Hometown, Email, Telephone, LoginDate, Password) 查询Customer表中所有客户的信息,SQL语句: SELECT ________ FROM CustomerA.*#B.CustomerCode, Name, Hometown, Sex, Email, Telephone, LoginTime, PassWord#C.CustomerCode, Hometown, Telephone, Name, Sex, Email, LoginTime, PassWord#D.CustomerCode ~ PassWord
BookStore数据库中有客户表Customer(CustomerCode, Name, Sex, Hometown, Email, Telephone, LoginDate, Password) 查询Customer表中所有客户的信息,SQL语句: SELECT ________ FROM Customer
A.*#B.CustomerCode, Name, Hometown, Sex, Email, Telephone, LoginTime, PassWord#C.CustomerCode, Hometown, Telephone, Name, Sex, Email, LoginTime, PassWord#D.CustomerCode ~ PassWord参考答案和解析
*;CustomerCode,Name,Hometown,Sex,Email,Telephone,LoginTime,PassWord;CustomerCode,Hometown,Telephone,Name,Sex,Email,LoginTime,PassWord
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BookStore数据库中有客户表Customer(CustomerCode,Name,Sex,Hometown,Email,Telephone,LoginDate,Password)查询Customer表中所有客户的信息,要求显示CustomerCode、Name、Hometown和Telephone字段信息。SQL语句:SELECT()FROM CustomerA、*B、ALLC、CustomerCode、Name、Hometown、TelephoneD、CustomerCode,Name,Hometown,Telephone
BookStore数据库中有图书表Book(BookCode,BookName,Author,PublisherCode,PublishTime,PublishTime是datetime类型。查询Book表中的图书类别(BookSort),要求每个类别只显示一次。SQL语句:SELECT()BookSort FROM BookA、DISTINCTB、ONLYC、ONED、PERCENT
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BookStore数据库中有客户表Customer(CustomerCode,Name,Sex,Hometown,Email,Telephone,LoginDate,Password)查询Customer表中所有客户的信息,SQL语句:SELECT()FROMCustomerA、*B、CustomerCode,Name,Hometown,Sex,Email,Telephone,LoginTime,PassWordC、CustomerCode,Hometown,Telephone,Name,Sex,Email,LoginTime,PassWordD、CustomerCode~PassWord
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数据库中有一张表名称为Student,有列Name,Age,IDCard,Sex。要求写SQL语句查询出表中所有的数据,下列哪个SQL语句是正确的()A、Select* From StudentB、Select Name From StudentC、Select Name,Age,IDCard From StudentD、Select Name,Age,IDCard,Sex From Student
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查询student表中的所有非空email信息,以下语句正确的是()。A、Select email from student where email !=nullB、Select email from student where email not is nullC、Select email from student where email nullD、Select email from student where email is not null
数据库中有一张表名称为Student,有列Number,Name,Age,IDCard,Sex。主键为Number。要求查询所有男同学信息,下列哪个SQL语句是正确的?()A、Select* From Student Where Sex=’男’B、Select* From Student Where Number NotIn(Select Number From Student Where Sex=’男’)C、Select* From Student Where NumberIn(Select Numbe rFrom Student Where Sex=’男’)D、Select* From Student Where Sex’男’
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数据库中有一张表名称为Student,有列Name,Age,IDCard,Sex。要求写SQL语句查询出表中年龄介于20和30岁之间的数据,下列哪个SQL语句是正确的?()A、Select* From Student Where Age=20 ANDAge=30B、Select* From Student Where Age=20 ANDAge=30C、Select* From Student Where Age BET WENN 20AND30D、Select* From Student Where Age=20Age=30"
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The CUSTOMERS table has these columns: CUSTOMER_ID NUMBER(4) NOT NULL CUSTOMER_NAME VARCHAR2(100) NOT NULL STREET_ADDRESS VARCHAR2(150) CITY_ADDRESS VARCHAR2(50) STATE_ADDRESS VARCHAR2(50) PROVINCE_ADDRESS VARCHAR2(50) COUNTRY_ADDRESS VARCHAR2(50) POSTAL_CODE VARCHAR2(12) CUSTOMER_PHONE VARCHAR2(20) The CUSTOMER_ID column is the primary key for the table. Which two statements find the number of customers? () A、SELECT TOTAL(*) FROM customer;B、SELECT COUNT(*) FROM customer;C、SELECT TOTAL(customer_id) FROM customer;D、SELECT COUNT(customer_id) FROM customer;E、SELECT COUNT(customers) FROM customer;F、SELECT TOTAL(customer_name) FROM customer;
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多选题BookStore数据库中有客户表Customer(CustomerCode,Name,Sex,Hometown,Email,Telephone,LoginDate,Password)查询Customer表中所有客户的信息,SQL语句:SELECT()FROMCustomerA*BCustomerCode,Name,Hometown,Sex,Email,Telephone,LoginTime,PassWordCCustomerCode,Hometown,Telephone,Name,Sex,Email,LoginTime,PassWordDCustomerCode~PassWord
单选题BookStore数据库中有图书表Book(BookCode,BookName,Author,PublisherCode,PublishTime,PublishTime是datetime类型。查询Book表中的图书类别(BookSort),要求每个类别只显示一次。SQL语句:SELECT()BookSort FROM BookADISTINCTBONLYCONEDPERCENT
多选题BookStore数据库中有订单表Order(OrderCode,CustomerCode,TotalPrice,Address,OrderTime,OrderStatus)查询订单总价(TotalPrice)在100到200元之间的订单信息。SQL语句:SELECTOrderCode,TotalPrice,OrderTime,OrderStatus FROM[Order]WHERE()ATotalPriceBETWEEN 100 AND 200BTotalPriceNOT BETWEEN 100 AND 200C100=TotalPrice=200DTotalPrice=100AndTotalPrice=200
单选题BookStore数据库中有客户表Customer(CustomerCode,Name,Sex,Hometown,Email,Telephone,LoginDate,Password)查询Customer表中所有客户的信息,要求显示CustomerCode、Name、Hometown和Telephone字段信息。SQL语句:SELECT()FROM CustomerA*BALLCCustomerCode、Name、Hometown、TelephoneDCustomerCode,Name,Hometown,Telephone
多选题数据库中有一张表名称为Student,有列Number,Name,Age,IDCard,Sex。主键为Number。要求查询所有男同学信息,下列哪个SQL语句是正确的?()ASelect* From Student Where Sex=’男’BSelect* From Student Where Number NotIn(Select Number From Student Where Sex=’男’)CSelect* From Student Where NumberIn(Select Numbe rFrom Student Where Sex=’男’)DSelect* From Student Where Sex’男’
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