First name is used almost immediately by people from China.() 此题为判断题(对,错)。

First name is used almost immediately by people from China.()

此题为判断题(对,错)。


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在J2EE中,使用()选项中的代码,可以生成如下XML文档:PEOPLEPERSONNAMETonyBlair/NAME/PERSONPEOPLE A.Elementpeople=doc.createElement(PEOPLE);Elementperson=doc.createElement(PERSON);Elementname=doc.createElement(NAME);name.appendChild(doc.createTextNode(TonyBlair));people.appendChild(person);person.appendChild(name);doc.appendChild(people);B.Elementpeople=doc.createElement(PEOPLE);Elementperson=doc.createElement(PERSON);people.appendChild(person);Elementname=doc.createElement(NAME);name.appendChild(doc.createTextNode(TonyBlair));person.appendChild(name);doc.appendChild(people);C.Elementpeople=doc.createElement(PEOPLE);Elementperson=doc.createElement(PERSON);people.appendChild(person);Elementname=doc.createElement(NAME);name.appendText(doc.createTextNode(TonyBlair));person.appendChild(name);doc.appendChild(people);D.Elementpeople=doc.createElement(PEOPLE);Elementperson=doc.createElement(PERSON);Elementname=doc.createElement(NAME);name.createTextNode(TonyBlair);people.appendChild(person);person.appendChild(name);doc.appendChild(people);

Examine the structure of the EMPLOYEES table:Column name Data type RemarksEMPLOYEE_ID NUMBER NOT NULL, Primary KeyLAST_NAME VARCNAR2(30)FIRST_NAME VARCNAR2(30)JOB_ID NUMBERSAL NUMBERMGR_ID NUMBER References EMPLOYEE_ID column DEPARTMENT_ID NUMBERYou need to create an index called NAME_IDX on the first name and last name fields of the EMPLOYEES table. Which SQL statement would you use to perform this task? ()A. CREATE INDEX NAME _IDX (first_name, last_name);B. CREATE INDEX NAME _IDX (first_name, AND last_name)C. CREATE INDEX NAME_IDX ON (First_name, last_name);D. CREATE INDEX NAME_IDX ON employees (First_name, AND last_name);E. CREATE INDEX NAME_IDX ON employees (First_name, last_name);F. CREATE INDEX NAME_IDX FOR employees (First_name, last_name);

在SQL Server 2000中,现要在employees表的first_name和last_name列上建立一个唯一的非聚集复合索引,其中first_name列数据的重复率是5%,last_name列数据的重复率是10%。请补全下列语句使以first_name和last_name列作为条件的查询效率最高。CREATE UNIQUE NONCLUSTERED INDEX Idx_NameON employees(______)

某企业职工关系EMP(E_no,E_name,DEPT,E_addr,E_tel)中的属性分别表示职工号、姓名、部门、地址和电话;经费关系FUNDS(E_no,E_limit,E_used)中的属性分别表示职工号、总经费金额和己花费金额。若要查询部门为"开发部"且职工号为"03015"的职工姓名及其经费余额,则相应的SQL语句应为: SELECT(60) FROM(61) WHERE(62)A.EMP.E_no,E_limit-E_usedB.EMP.E_name,E_used-E_limitC.EMP.E_no,E_used-E_limitD.EMP.E_name,E_limit-E_used

Given the following query:SELECT last_name, first_name, age, hire_date FROM employee WHERE age >40Which of the following clauses must be added to return the rows sorted by AGE, oldest first, and by LAST_NAME, from A to Z?()A.SORT BY age ASC, last_nameB.SORT BY age DESC, last_nameC.ORDER BY age DESC, last_nameD.ORDER BY age ASC, last_name

某企业职工关系EMP(E_no,E_name,DEPT,E_addr,E_tel)中的属性分别表示职工号、姓名、部门、地址和电话;经费关系FUNDS(E_no,E_limit,E_used)中的属性分别表示职工号、总经费金额和己花费金额。若要查询部门为"开发部"且职工号为"03015"的职工姓名及其经费余额,则相应的SQL语句应为:SELECT(请作答此空)FROM( )WHERE( )A.EMP.E_no,E_limit-E_usedB.EMP.E_name,E_used-E_limitC.EMP.E_no,E_used-E_limitD.EMP.E_name,E_limit-E_used

姜华华客人的姓名正确录入方式为()A.Last Name:Jiang; First:Huahua; Alt. Name:姜华华B.Last Name: 姜; First: 华华; Alt. Name: Jiang HuahuaC.Last Name:jiang; First:huahua; Alt. Name:姜华华D.Last Name: 姜; First: 华华; Alt. Name: jiang huahua

4、姜华华客人的姓名正确录入方式为()A.Last Name:Jiang; First:Huahua; Alt. Name:姜华华B.Last Name: 姜; First: 华华; Alt. Name: Jiang HuahuaC.Last Name:jiang; First:huahua; Alt. Name:姜华华D.Last Name: 姜; First: 华华; Alt. Name: jiang huahua

88、姜华华客人的姓名正确录入方式为()A.Last Name:Jiang; First:Huahua; Alt. Name:姜华华B.Last Name: 姜; First: 华华; Alt. Name: Jiang HuahuaC.Last Name:jiang; First:huahua; Alt. Name:姜华华D.Last Name: 姜; First: 华华; Alt. Name: jiang huahua

1.查询hr用户下的EMPLOYEES表,根据输入的first_name,查询拥有相同first_name的雇员信息。 (1)如果没有此first_name,应给出提示。 (2)如果只有1个first_name,应给出提示。 (3)如果有多个first_name相同用户,显示重名的总人数及他们的最高工资。