数据库原理及应用课程设计报告

1、成绩数据库原理及应用课程设计报告商品销售管理系统学院：信息工程学院班级： 学号： 姓名： 完成时间： 201 课程设计的任务数据库原理及应用是计算机及其相关学科的一门重要的学科基础课程，也是计算机软件科学与技术、信息科学与技术的重要学科分支。本课程设计旨在通过对一个小型数据库管理系统（dbms）的综合设计过程，强化学生对计算机系统软件的设计能力，提高学生的综合素质，并通过课程设计进一步加强学生对所学知识的理解，以及对数据库的全面、深刻认识。具体要求如下：1)了解dbms的设计过程；2)掌握关系型dbms的结构及实现；3)掌握系统程序设计的基础知识；4)深化理解并掌握数据库原理及应用课程的相关内

2、容；5)强化软件开发的团队意识，提高合作能力。系统需求分析与设计数据流图er图数据结构描述商品数据结构：shanidchar6shannamechar8shancountsmailint2shanpricesmailint2factoridchar6公司数据结构:factoridchar6factornamevarchar24factoraddrvarchar24factorphonechar11销售数据结构：shanidchar6factoridchar6salsecountsmailint2销售管理系统软件设计流程图和功能模块图商品信息查询商品信息录入销售信息查询销售信息录入公司信息查询公

3、司信息录入程序模块汇总 商品信息录入； 商品信息查询； 公司信息录入； 公司信息查询； 销售信息录入； 销售信息查询；源程序清单主目录：using system;using system.configuration;using system.data;using system.linq;using system.web;using system.web.security;using system.web.ui;using system.web.ui.htmlcontrols;using system.web.ui.webcontrols;using system.web.ui.webcontr

4、ols.webparts;using system.xml.linq;public partial class _default : system.web.ui.page protected void page_load(object sender, eventargs e) protected void button1_click(object sender, eventargs e) response.redirect("/default2.aspx"); protected void button3_click(object sender, eventargs e)

5、response.redirect("/default3.aspx"); protected void button2_click(object sender, eventargs e) response.redirect("/default4.aspx"); protected void button4_click(object sender, eventargs e) response.redirect("/default6.aspx"); protected void button5_click(object sender, e

6、ventargs e) response.redirect("/default4.aspx"); protected void button6_click(object sender, eventargs e) response.redirect("/default5.aspx"); protected void button7_click(object sender, eventargs e) response.redirect("/default7.aspx"); 1 商品信息录入；using system;using syste

7、m.collections;using system.configuration;using system.data;using system.linq;using system.web;using system.web.security;using system.web.ui;using system.web.ui.htmlcontrols;using system.web.ui.webcontrols;using system.web.ui.webcontrols.webparts;using system.xml.linq;using system.data.sqlclient;publ

8、ic partial class default2 : system.web.ui.page protected void page_load(object sender, eventargs e) protected void button3_click(object sender, eventargs e) if (shangid.text.trim().length < 1) response.write("<script>window.alert('没有要删除的项！')</script>"); return; sqlco

9、nnection con = new sqlconnection("server=localhost;user id=sa;pwd=123456;database=studb"); con.open(); string select = "select count(*) as total from s where shanid="+"'"+ shangid.text.trim()+ "'" sqlcommand cmdsel = new sqlcommand(select, con); sqldat

10、areader dr = cmdsel.executereader(); if (dr.read() if (int.parse(dr"total".tostring() = 0) response.write("<script>window.alert('要删除的记录不存在！')</script>"); return; dr.close(); string str = "delete from s where shanid=" + "'" + shangid.tex

11、t.trim() + "'" sqlcommand cmd = new sqlcommand(str, con); cmd.executenonquery(); con.close(); protected void exit_click(object sender, eventargs e) response.redirect ("/default.aspx");protected void insert_click(object sender, eventargs e) sqlconnection con = new sqlconnectio

12、n("server=localhost;uid=sa;pwd=123456;database=studb"); con.open(); string insert = "insert into s(shanid,shanname,shancount,shanprice,factoryid) values(" + "'" + shangid.text.trim() + "'" + "," + "'" + shangname.text.trim() + &

13、quot;'" + "," + shangcount.text.trim() + "," + "'" + shangprice.text.trim() + "'" + "," + "'" + shangaddr.text.trim() + "'" + ")" response.write(insert); sqlcommand cmd1 = new sqlcommand(insert,

14、con); cmd1.executenonquery(); con.close();2 商品信息查询；using system;using system.collections;using system.configuration;using system.data;using system.linq;using system.web;using system.web.security;using system.web.ui;using system.web.ui.htmlcontrols;using system.web.ui.webcontrols;using system.web.ui.

15、webcontrols.webparts;using system.xml.linq;using system.data.sqlclient;public partial class default3 : system.web.ui.page protected void page_load(object sender, eventargs e) protected void movetofirst_click(object sender, eventargs e) sqlconnection con = new sqlconnection("server=localhost;use

16、r id=sa;pwd=123456;database=studb"); con.open(); string str = "select shanid from s order by shanid asc" sqlcommand cmd = new sqlcommand(str, con); sqldatareader sr = cmd.executereader(); if (sr.read() string student = sr"shanid".tostring(); refresh(student); sr.close(); pri

17、vate void refresh(string shangid) sqlconnection con = new sqlconnection("server=localhost;user id=sa;pwd=123456;database=studb"); con.open(); string str = "select * from s where shanid=" + "'" + shangid.tostring() + "'" sqlcommand cmd = new sqlcommand(

18、str, con); sqldatareader sr = cmd.executereader(); if (sr.read() shangid.text = shangid.tostring(); shangname.text = sr"shanname".tostring(); shangcount.text = sr"shancount".tostring(); shangprice.text = sr"shanprice".tostring(); shangaddr.text = sr"factoryid"

19、.tostring(); protected void movetopre_click(object sender, eventargs e) if (shangid.text.trim().length < 1) response.write("<script>window.alert('请选择一个当前项！')</script>"); return; string shangid = "" sqlconnection con = new sqlconnection("server=localhos

20、t;user id=sa;pwd=123456;database=studb"); con.open(); string str = "select shanid from s order by shanid asc" sqlcommand cmd = new sqlcommand(str, con); sqldatareader sr = cmd.executereader(); if (sr.read() shangid = sr"shanid".tostring(); sr.close(); if (shangid = shangid.t

21、ext.trim() response.write("<script>window.alert('当前数据项已经是第一个了！')</script>"); return; else string tempstr = "select max(shanid) as maxid from s where shanid<" + "'" + shangid.text.trim() + "'" cmd.commandtext = tempstr; sqldatarea

22、der dr = cmd.executereader(); if (dr.read() string shid = dr"maxid".tostring(); refresh(shid); con.close(); protected void movetonext_click(object sender, eventargs e) if (shangid.text.trim().length < 1) response.write("<script>window.alert('请选择一个当前项！')</script>

23、"); return; string shangid = "" sqlconnection con = new sqlconnection("server=localhost;user id=sa;pwd=123456;database=studb"); con.open(); string str = "select shanid from s order by shanid desc" sqlcommand cmd = new sqlcommand(str, con); sqldatareader sr = cmd.ex

24、ecutereader(); if (sr.read() shangid = sr"shanid".tostring(); sr.close(); if (shangid = shangid.text.trim() response.write("<script>window.alert('当前数据项已经是最后一个了！')</script>"); return; else string tempstr = "select min(shanid) as maxid from s where shanid&g

25、t;" + "'" + shangid.text.trim() + "'" cmd.commandtext = tempstr; sqldatareader dr = cmd.executereader(); if (dr.read() string shid = dr"maxid".tostring(); refresh(shid); con.close(); protected void movetolast_click(object sender, eventargs e) sqlconnection

26、con = new sqlconnection("server=localhost;user id=sa;pwd=123456;database=studb"); con.open(); string str = "select shanid from s order by shanid desc" sqlcommand cmd = new sqlcommand(str, con); sqldatareader sr = cmd.executereader(); if (sr.read() string shang = sr"shanid&qu

27、ot;.tostring(); refresh(shang); sr.close(); con.close(); protected void keyselect_click(object sender, eventargs e) bool find = false; sqlconnection con = new sqlconnection("server=localhost;user id=sa;pwd=123456;database=studb"); con.open(); string cmdstr = "select * from s" sql

28、dataadapter da = new sqldataadapter(cmdstr, con); dataset ds = new dataset(); da.fill(ds); for (int i = 0; i < ds.tables0.rows.count; i+) for (int j = 0; j < ds.tables0.columns.count; j+) string data = (ds.tables0.rowsij.tostring().trim(); if (data = select.text.trim() shangid.text = ds.tables

29、0.rowsi"shanid".tostring(); shangname.text = ds.tables0.rowsi"shanname".tostring(); shangcount.text = ds.tables0.rowsi"shancount".tostring(); shangprice.text = ds.tables0.rowsi"shanprice".tostring(); shangaddr.text = ds.tables0.rowsi"factoryid".tostr

30、ing(); find = true; if (find = false) response.write("<script>window.alert('没有相关记录！')</script>"); con.close(); protected void exit_click(object sender, eventargs e) response.redirect("/default.aspx"); 3 公司信息录入；using system;using system.collections;using system

31、.configuration;using system.data;using system.linq;using system.web;using system.web.security;using system.web.ui;using system.web.ui.htmlcontrols;using system.web.ui.webcontrols;using system.web.ui.webcontrols.webparts;using system.xml.linq;using system.data.sqlclient;public partial class default4

32、: system.web.ui.page protected void page_load(object sender, eventargs e) protected void insert_click(object sender, eventargs e) sqlconnection con = new sqlconnection("server=localhost;uid=sa;pwd=123456;database=studb"); con.open(); string insert = "insert into factory(factorid,facto

33、rname,factoraddr,factorphone) values(" + "'" + factoryid.text.trim() + "'" + "," + "'" + factoryname.text.trim() + "'" + "," + "'" + factoryaddr.text.trim() + "'" + "," + "'

34、;" + factoryphone.text.trim() + "'" + ")" response.write(insert); sqlcommand cmd1 = new sqlcommand(insert, con); cmd1.executenonquery(); con.close(); protected void delete_click(object sender, eventargs e) if (factoryid.text.trim().length < 1) response.write("<

35、;script>window.alert('没有要删除的项！')</script>"); return; sqlconnection con = new sqlconnection("server=localhost;user id=sa;pwd=123456;database=studb"); con.open(); string select = "select count(*) as total from factory where factorid=" + "'" + fac

36、toryid.text.trim() + "'" sqlcommand cmdsel = new sqlcommand(select, con); sqldatareader dr = cmdsel.executereader(); if (dr.read() if (int.parse(dr"total".tostring() = 0) response.write("<script>window.alert('要删除的记录不存在！')</script>"); return; dr.c

37、lose(); string str = "delete from factory where factorid=" + "'" + factoryid.text.trim() + "'" sqlcommand cmd = new sqlcommand(str, con); cmd.executenonquery(); con.close(); protected void exit_click(object sender, eventargs e) response.redirect("/default.a

38、spx"); 4 公司信息查询；using system;using system.collections;using system.configuration;using system.data;using system.linq;using system.web;using system.web.security;using system.web.ui;using system.web.ui.htmlcontrols;using system.web.ui.webcontrols;using system.web.ui.webcontrols.webparts;using sys

39、tem.xml.linq;using system.data.sqlclient;public partial class default5 : system.web.ui.page protected void page_load(object sender, eventargs e) protected void movetofirst_click(object sender, eventargs e) sqlconnection con = new sqlconnection("server=localhost;user id=sa;pwd=123456;database=st

40、udb"); con.open(); string str = "select factorid from factory order by factorid asc" sqlcommand cmd = new sqlcommand(str, con); sqldatareader sr = cmd.executereader(); if (sr.read() string student = sr"factorid".tostring(); refresh(student); sr.close(); private void refresh(

41、string factorid) sqlconnection con = new sqlconnection("server=localhost;user id=sa;pwd=123456;database=studb"); con.open(); string str = "select * from factory where factorid=" + "'" + factorid.tostring() + "'" sqlcommand cmd = new sqlcommand(str, con

42、); sqldatareader sr = cmd.executereader(); if (sr.read() factoryid.text = factorid.tostring(); factoryname.text = sr"factorname".tostring(); factoryaddr.text = sr"factoraddr".tostring(); factoryphone.text = sr"factorphone".tostring(); protected void movetopre_click(obje

43、ct sender, eventargs e) if (factoryid.text.trim().length < 1) response.write("<script>window.alert('请选择一个当前项！')</script>"); return; string factoryid = "" sqlconnection con = new sqlconnection("server=localhost;user id=sa;pwd=123456;database=studb"

44、); con.open(); string str = "select factorid from factory order by factorid asc" sqlcommand cmd = new sqlcommand(str, con); sqldatareader sr = cmd.executereader(); if (sr.read() factoryid = sr"factorid".tostring(); sr.close(); if (factoryid = factoryid.text.trim() response.write(

45、"<script>window.alert('当前数据项已经是第一个了！')</script>"); return; else string tempstr = "select max(factorid) as maxid from factory where factorid<" + "'" + factoryid.text.trim() + "'" cmd.commandtext = tempstr; sqldatareader dr = cmd.e

46、xecutereader(); if (dr.read() string faid = dr"maxid".tostring(); refresh(faid); con.close(); protected void movetonext_click(object sender, eventargs e) if (factoryid.text.trim().length < 1) response.write("<script>window.alert('请选择一个当前项！')</script>"); ret

47、urn; string factoryid = "" sqlconnection con = new sqlconnection("server=localhost;user id=sa;pwd=123456;database=studb"); con.open(); string str = "select factorid from factory order by factorid desc" sqlcommand cmd = new sqlcommand(str, con); sqldatareader sr = cmd.executereader(); if (sr.read() factoryid = sr"factorid".tostring(); sr.close(); if (factoryid = factoryid.text.trim() response.write("<script>window.alert('当前数据项已经是最后一个了！')</script