First name is used almost immediately by people from the United States and Great Britain.() 此题为判断题(对,错)。

First name is used almost immediately by people from the United States and Great Britain.()

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。