eaintheacci denti nvestigation,managementandreporting,eachpostshoul dbe devel opedunderthiss ystemspecialistsche ck,cleartheexaminatons,time,cyclesa ndot herrelevantregulations.Strengthe n ing sitesupervisionandexami nation,todetectandinvestigateillegalcomma nd,i llegaloperationsandvi ol ationsofoperati ngrules.Secondsafetyreferstothe producti onsite,technologymanag ement,equip ment,facilitie s,andsoonca nleadtoaccidentsrisksexist.1,accordingtotheextentofthesecurityrisks,s olvingi sdivi dedintoa,b,andclevelsofdifficulty;A-l evel:difficult,mini ngdifficulties,shallbereportedt othecompany'sproblems.B-class:difficulttoresolvedif
《oracle 数据库》
课程设计
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目录系统需求分析 ........ 错误！未定义书
签。一，
错误！未定义书签。数据库分析 .......... 二，错误！未定义书签。数据库设计部分 ...... 三，错误！未定义书签。图。 .... 实体、联系、属性及（1）E_R
误！未定义书签。 ............................................... 错1，实体、联系
误！未定义书签。错，图书管理系统2E-R图模型 ..........................
误！未定义书签。.................................................. 错3，关系模式 .
错误！未定义书签。........................... （2）表设计及表结构 .
错误！未定义书签。创建数据库、创建表以及添加数据。(3)
误！未定义书签。错建数据库代码： ..................................... 1，创
误！未定义书签。错 ............................................ 建表代码：2，创
3，添加数据代码： ........................................ 错误！未定义书签。
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tionform(seeatt ng,registraeshootidinbyunittroublzardfilleerityoftheha othesev ccordingtope.3,andotherslng,fire,actrical,trans port,blasti:ele ude nclunsafetypesi-pitminepartment.2,openheDe dint hatmustbeaddresse ssriskst ndbusine ss:fromsegmentsa-cl aems.Cprobl ngorganizationstosolve consistofminiiculties,shall
eaintheacci dentinvestigation,manageme ntandreporting,eachpostshoul dbe devel opedunderthissystemspecialistsche ck,clearthe examinatons,time,cyclesa ndot herrelevantregulations.Strengthe ning sitesupervisi ona ndexami nation,todete ctandinvestigateill egalcomma nd,i llegaloperationsandviol ationsofoperati ngrules.Secondsafetyreferstothe producti onsite,technologymanag ement,
e qui pment,facilitie s,andsoonca nleadtoaccidentsrisk sexist.1,a ccordingtotheextentofthesecurityrisks,solvingi sdivi dedintoa,b,a
ndcl evelsofdifficulty;A-level:difficult,mini ngdifficulties,shallbereportedtothecompany'sproblems.B-class:difficulttoresolvedif （5）实现各种查询功能 (10)
四，设计遇到的问题及解决办法 ..............
