2007 年9月全国计算机等级考试二级笔试试卷 Visual Foxpro数据库程序设计.doc

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1、2007 年9月全国计算机等级考试二级笔试试卷 Visual Foxpro数据库程序设计(考试时间90分钟,总分值100分)一选择题(每题2分，70分) 以下各题A)、B)、C)、D)四个选项中，只有一个选项是正确的，请将正确选项涂写在答题卡相应的位置上，答在试卷上不得分。 1软件是指 A程序 B程序和文档 C算法加数据结构 D程序、数据与相关文档的完整集合2软件调试的目的是 A发现错误 B改正错误 C改善软件的性能 D验证软件的正确性3在面向对象方法中，实现信息隐蔽是依靠 A对象的继承 B对象的多态 C对象的封装 D对象的分类4以下表达中，不符合良好程序设计风格要求的是 A程序的效率第一，

2、清晰第二 B程序的可读性好 C程序中要有必要的注释 D输入数据前要有提示信息5以下表达中正确的选项是 A程序执行的效率与数据的存储结构密切相关 B程序执行的效率只取决于程序的控制结构 C程序执行的效率只取决于所处理的数据量 D以上三种说法都不对6以下表达中正确的选项是 A数据的逻辑结构与存储结构必定是一一对应的 B由于计算机存储空间是向量式的存储结构，因此，数据的存储结构一定是线性结构 C程序设计语言中的数组一般是顺序存储结构，因此，利用数组只能处理线性结构 D以上三种说法都不对7冒泡排序在最坏情况下的比拟次数是 A(n1)/2 Bnlog2 n Cn(n1)/2 D/28一棵二叉树中共有70

3、个叶子结点与80个度为1的结点，那么该二叉树中的总结点数为 A219 B221 C229 D2319以下表达中正确的选项是 A数据库系统是一个独立的系统，不需要操作系统的支持 B数据库技术的根本目标是要解决数据的共享问题 C数据库管理系统就是数据库系统 D以上三种说法都不对10以下表达中正确的选项是 A为了建立一个关系，首先要构造数据的逻辑关系 B表示关系的二维表中各元组的每一个分量还可以分成假设干数据项 C一个关系的属性名表称为关系模式 D一个关系可以包括多个二维表(11) 在Visual Foxpro中,通常以窗口形式出现，用以创立和修改表、表单、数据库等应用程序组件的可视化工具称为 A向

4、导 B设计器 C生成器 D工程管理器12命令？VARTYPETIME结果是 A . C BD CT D出错13命令？LENSPACE3-SPACE2的结果是 A1 B2 C3 D5 14在Visual Foxpro中，菜单程序文件的默认扩展名是AmnxBmntCmprDprg 15想要将日期型或日期时间型数据中的年份用4位数字显示，应当使用设置命令ASET CENTURY ONBSET CENTURY OFFCSET CENTURY TO 4DSET CENTURY OF 4 16表中有字符型字段职称和姓别，要建立一个索引，要求首先按职称排序、职称相同时再按性别排序，正确的命令是AINDEX

5、ON 职称性别 TO tttBINDEX ON 性别职称TO tttCINDEX ON职称，性别TO tttDINDEX ON 性别，职称TO ttt 17在Visual Foxpro中，Unload事件的触发时机是A释放表单B翻开表单C创立表单D运行表单 18命令SELECT 0的功能是A选择编号最小的未使用工作区B选择0号工作区C关闭当前工作区的表D选择当前工作区 19下面有关数据库表和自由表的表达中，错误的选项是A数据库表和自由表都可以用表设计器来建立B数据库表和自由表都支持表间联系和参照完整性C自由表可以添加到数据库中成为数据库表D数据库表可以从数据库中移出成为自由表 20有关ZAP命

6、令的描述，正确的选项是AZAP命令只能删除当前表的当前记录BZAP命令只能删除当前表的带有删除标记的记录CZAP命令能删除当前表的全部记录DZAP命令能删除表的结构和全部记录 21在视图设计器中有，而在查询设计器中没有的选项卡是A排序依据B更新条件C分组依据D杂项 22在使用查询设计器创立查询是，为了指定在查询结果中是否包含重复记录对应于DISTINCT，应该使用的选项卡是 A排序依据 B联接 C筛选 D杂项 23在Visual Foxpro中，过程的返回语句是AGOBACKBCOMEBACKCRETURNDBACK 24在数据库表上的字段有效性规那么是A逻辑表达式B字符表达式C数字表达式D以

7、上三种都有可能25假设在表单设计器环境下，表单中有一个文本框且已经被选定为当前对象。现在附属性窗口中选择Value属性，然后在设置框中输入：=2001-9-10-2001-8-20。请问以上操作后，文本框Value属性值的数据类型为：A日期型B数值型C字符型D以上操作出错 26在SQL SELECT 语句中为了将查询结果存储到临时表应该使用短语ATOCURSORBINTOCURSORCINTO DBFDTO DBF 27在表单设计中，经常会用到一些特定的关键字、属性和事件。以下各项中属于属性的是AThisBThisFormCCaptionDClick 28下面程序计算一个整数的各位数字之和。在

8、下划线处应填写的语句是SETTALKOFFINPUTx=TO xs=0DO WHILE x！=0s=s+MODx,10ENDDO?sSETTALKON Ax=int(x/10) Bx=int(x) Cx=x-int(x/10) Dx=x-int(x)29在SQL的ALTER TABLE语句中，为了增加一个新的字段应该使用短语ACREATEBAPPENDCCOLUMNDADD 3035题使用如下数据表：学生.DBF：学号C,8，姓名(C,6)，性别(C,2)，出生日期(D)选课.DBF：学号C,8，课程号(C,3)，成绩(N,5,1) 30查询所有1982年3月20日以后含出生、性别为男的学生，

9、正确的SQL语句是ASELECT * FROM 学生WHERE 出生日期=1982-03-20 AND 性别=男BSELECT * FROM 学生WHERE 出生日期=1982-03-20 OR 性别=男DSELECT * FROM 学生WHERE 出生日期=ALL(SELECT 成绩 FROM 选课)BSELECT 学生.学号,姓名 FROM学生,选课 WHERE 学生.学号=选课.学号AND 成绩=ALL(SELECT 成绩 FROM 选课 WHERE 课程号=101)CSELECT 学生.学号,姓名 FROM学生,选课 WHERE 学生.学号=选课.学号AND 成绩=ANY(SELECT

10、 成绩 FROM 选课 WHERE 课程号=101)DSELECT 学生.学号,姓名 FROM学生,选课 WHERE 学生.学号=选课.学号 AND 课程号=101 AND 成绩=ALL(SELECT 成绩 FROM 选课 WHERE课程号=101) 34插入一条记录到“选课表中，学号、课程号和成绩分别是“02080111、“103和80，正确的SQL语句是AINSERT INTO 选课 VALUES(“02080111，103，80)BINSERT VALUES(“02080111，103，80)TO 选课(学号，课程号，成绩)CINSERT VALUES(“02080111，“103，80

11、)INTO 选课(学号，课程号，成绩)DINSERT INTO 选课(学号，课程号，成绩) FORM VALUES(“02080111,103,80) 35将学号为“02080110、课程号为“102的选课记录的成绩改为92，正确的SQL语句是AUPDATE选课SET成绩WITH 92 WHERE学号=02080110AND课程号=102BUPDATE选课SET 成绩=92 WHERE学号=02080110 AND课程号=102CUPDATE FROM选课SET成绩WITH 92 WHERE学号=02080110AND课程号=102DUPDATE FROM选课SET成绩=92 WHERE学号=

12、02080110 AND课程号=102请将每一个空的正确答案写在答题卡1 15序号的横线上，答在试卷上不得分。 注意：以命令关键字填空的必须拼写完整， (1)软件需求规格说明书应具有完整性，无岐义性、正确性、可验证性、可修改性等特征，其中最重要的是1。 (2)在两种根本测试方法中，2测试的原那么之一是保证所测模块中每一个独立路径至少执行一次。 (3)线性表的存储结构主要分为顺序存储结构和链式存储结构。队列是一种特殊的线性表，循环队列是队列的3存储结构。 (4)对以下二义树进行中序遍历的结果为4。 (5)在E-R图中，矩形表示5。 (6)如下命令查询雇员表中“部门号“字段为空值的记录 SELEC

13、T * FROM 雇员WHERE部门号6。 (7)在SQL的SELECT查询中，HAVING字句不可以单独使用，总是跟在7 子句之后一起使用。 (8)在SQL的SELECT 查询时，使用8 子句实现消除查询结果中的重复记录。 (9)在Visual FoxPro 中修改表结构的非SQL命令是9 。 (10)在Visual FoxPro中，在运行表单时最先引发的表单事件是10事件。 (11)在Visual FoxPro中，使用LOCATE ALL 命令按条件对表中的记录进行查找，假设查不到记录，函数EOF()的返回值应是11 。 (12)在Visual FoxPro表单中，当用户使用鼠标单击命令按

14、钮时，会触发命令按钮的12事件。 (13)在Visual FoxPro中，假设表单上有一选项组：男女，该选项组的Value属性值赋为0。当其中的第一个选项按钮“男“被选中，该选项组的Value属性值为13 。 (14)在Visual FoxPro表单中，用来确定复选框是否被选中的属性是14 。 (15)在SQL中，插入、删除、更新命令依次是INSERT、DELETE和15 。2007年9月全国计算机等级考试二级VFP参考答案一、选择题：1-5DBCAA 5-10CCABA 11-15BADCA 16-20AAABC 21-25BDCAA26-30BCADA 31-35DBDAB 二、填空题：1

15、、无歧义性 2、白盒测试 3、顺序 4、ACBDFEHGP 5、实体集6)ISNULL 7)GROUPBY 8)DISTINCT 9)MODIFYSTRUCTURE10)LOAD 11).T. 12)CLICK 13)1或男14)value 15)Update英文版 Two regulations promulgated for implementation is in the party in power for a long time and the rule of law conditions, the implementation of comprehensive strictly s

16、trategic plan, implementation in accordance with the rules and discipline to manage the party, strengthen inner-party supervision of major initiatives. The two regulations supporting each other, the adhere to a positive advocate, focusing on morality is of Party members and Party leading cadres can

17、see, enough to get a high standard; around the party discipline, disciplinary ruler requirements, listed as negative list, focusing on vertical gauge, draw the party organizations and Party members do not touch the bottom line . Here, the main from four square face two party rules of interpretation:

18、 the first part introduces two party Revised regulations the necessity and the revision process; the second part is the interpretation of the two fundamental principles of the revision of laws and regulations in the party; the third part introduces two party regulations modified the main changes and

19、 needs to grasp several key problems; the fourth part on how to grasp the implementation of the two regulations of the party. and revised the necessity and revised history of the CPC Central Committee the amendment to the Chinese Communist Party members and leading cadres honest politics several gui

20、delines and column 1 by 2021 to strengthen party laws and regulations focus. Two party regulations revision work lasted a Years, pooling the wisdom of the whole party, ideological consensus, draw historical experience, respect for the wisdom of our predecessors, which reflects the unity of inheritan

21、ce and innovation; follow the correct direction, grasp the limited goals, adhere to the partys leadership, to solve the masses of the people reflect a focus on the problem. The new revision of the and , reflects the partys 18 and the eighth session of the third, the spirit of the fourth plenary sess

22、ion, reflecting the experience of studying and implementing the General Secretary Xi Jinping series of important speech, reflects the partys eighteen years comprehensive strictly practice. (a) revised two regulations of the party need of in based on revised, the promulgation and implementation of Ja

23、nuary 2021, to strengthen the construction of the contingent of leading cadres play an important role. But with the party to manage the party strictly administering the deepening, has not been able to fully meet the actual needs. Content is too complicated, eight prohibition, 52 are not allowed to h

24、ard to remember, and also difficult to put into practice; the second is concisely positive advocated by the lack of prohibited provisions excessive, no autonomy requirements; the third is banned terms and discipline law, both with the party discipline, disciplinary regulations repeat and Criminal la

25、w and other laws and regulations repeat; the fourth is to clean the theme is not prominent, not for the existing problems, and is narrow, only needle of county-level leading cadres above. is in 1997 based on revision, in December 2003 the promulgation and implementation, to strengthen the constructi

26、on of the party play very important role. Along with the development of the situation, which many provisions have been unable to fully meet the comprehensive strictly administering the practice needs. One is Ji law, more than half of the provisions and criminal law and other countries laws and regul

27、ations Repetition; two is the political discipline regulations is not prominent, not specific, for violation of the party constitution, damage the authority of Party Constitution of misconduct lack necessary and serious responsibility to pursue; third is the main discipline for the leading cadres, d

28、oes not cover all Party members. Based on the above situation, need to and the two is likely to be more relevant regulations first amendment. By revising, really put the authority of Party discipline, the seriousness in the party tree and call up the majority of Party members and cadres of the party

29、 constitution of party compasses party consciousness. (II) two party regulations revision process the Central Committee of the Communist Party of China attaches great importance to two regulations revision . Xi Jinping, general books recorded in the Fifth Plenary Session of the eighth session of the

30、 Central Commission for Discipline Inspection, on the revised regulations made clear instructions. According to the central deployment, the Central Commission for Discipline Inspection from 2021 under six months begin study two regulations revision. The Standing Committee of the Central Commission f

31、or Discipline Inspection 4 review revised. Comrade Wang Qishan 14 times held a special meeting to study two regulations revision, amendment clarifies the direction, major issues of principle, path and target, respectively held a forum will listen to part of the province (area) secretary of the Party

32、 committee, Secretary of the Discipline Inspection Commission, part of the central ministries and state organs Department The first party committee is mainly responsible for people, views of experts and scholars and grassroots party organizations and Party members. Approved by the Central Committee

33、of the Communist Party of China, on 7 September 2021, the general office of the Central Committee of the Party issued a notice to solicit the provinces (autonomous regions, municipalities) Party, the central ministries and commissions, state ministries and commissions of the Party (party), the Gener

34、al Political Department of the military, every 3 people organization of Party of two regulations revision opinion. Central Commission for Discipline Inspection of extensive solicitation of opinions, careful study, attracting, formed a revised sent reviewers. In October 8 and October 12, Central Comm

35、ittee Political Bureau Standing Committee and the Political Bureau of the Central Committee After consideration of the two regulations revised draft. On October 18, the Central Committee of the Communist Party of China formally issued two regulations. Can say, two laws amendment concentrated the wis

36、dom of the whole party, embodies the party. Second, and revision of the basic principles of two party regulations revision work and implement the partys eighteen, ten eight plenary, the spirit of the Fourth Plenary Session of the Eleventh Central Committee and General Secretary Xi Jinping important

37、instructions on the revised and , highlighting the ruling party characteristics, serious discipline, the discipline quite in front of the law, based on the current, a long-term, advance as a whole, with Bu Xiuding independent and . Main principle is: first, adhere to the party constitution to follow

38、. The constitution about discipline and self-discipline required specific, awaken the party constitution of party compasses party consciousness, maintaining the authority of the constitution. General Secretary Xi Jinping pointed out that no rules, no side round. Party constitution is the fundamental

39、 law, the party must follow the general rules. In early 2021 held the eighth session of the Central Commission for Discipline Inspection Fifth Plenary Session of the 16th Central Committee, Xi Jinping again pointed out that constitution is the party must follow the general rules, but also the genera

40、l rules. the revision of the and is Method in adhere to the regulations established for the purpose of combining rule of virtue is to adhere to the party constitution as a fundamental to follow, the constitution authority set up, wake up the party constitution and party rules the sense of discipline

41、, the party constitution about discipline and self-discipline specific requirements. 4 second is to adhere to in accordance with the regulations governing the party and the party. The Party of rule of virtue de, mainly refers to the partys ideals and beliefs, excellent traditional style. The revised

42、 the closely linked to the self-discipline, insisting on the positive initiative, for all members, highlight the vital few, emphasized self-discipline, focusing on the morality, and the majority of Party members and the ideological and moral standards. The revised Ji method separately, Ji, Ji Yan to Method, as a negative list, emphasizing the heteronomy, focusing on