數(shù)據(jù)庫(kù)設(shè)計(jì)報(bào)告-小型餐飲管理系統(tǒng).doc

第一章 設(shè)計(jì)任務(wù)與要求目的及意義：此小型餐飲業(yè)管理系統(tǒng)的設(shè)計(jì)主要是為了方便管理，對(duì)于各個(gè)進(jìn)出賬目，支出和收入的管理便于系統(tǒng)化，在每月匯總計(jì)算中分析運(yùn)營(yíng)趨勢(shì)和餐館的發(fā)展方向進(jìn)行一定的規(guī)劃。通過(guò)各個(gè)月的盈利進(jìn)行對(duì)比，分析那種方式更適合餐館的有利運(yùn)營(yíng)和更好地服務(wù)顧客。實(shí)現(xiàn)對(duì)餐館內(nèi)部各種管理的電子化、自動(dòng)化，提高各個(gè)模塊之間的辦公效率，為高質(zhì)量餐館服務(wù)提供保證。任務(wù)：1.能夠?qū)崿F(xiàn)對(duì)該系統(tǒng)進(jìn)行管理的人員的權(quán)限限制；2.使餐館能夠及時(shí)并靈活的對(duì)菜品品種其價(jià)位等進(jìn)行管理；3.為餐館提供從客戶點(diǎn)餐到結(jié)算等一系列操作的服務(wù)，使之能簡(jiǎn)單易行、方便、 清楚地進(jìn)行管理第二章 系統(tǒng)功能分析一功能需求：餐飲管理系統(tǒng)中主要包括對(duì)以下幾種管理：賬單管理，財(cái)務(wù)管理，訂餐管理，菜品管理，系統(tǒng)管理。（1）系統(tǒng)管理：系統(tǒng)管理包括用戶名和密碼，主要用于用戶登陸界面登陸和查詢。（2）賬單管理：賬單管理包括賬單號(hào)和餐臺(tái)，每一個(gè)餐臺(tái)對(duì)應(yīng)一個(gè)一個(gè)賬單號(hào)，通過(guò)餐臺(tái)號(hào)的記錄來(lái)對(duì)對(duì)應(yīng)的餐臺(tái)進(jìn)行記賬管理，即就是記錄每一個(gè)餐臺(tái)的消費(fèi)金額。賬單管理是財(cái)務(wù)管理的一個(gè)小分支，是服務(wù)于財(cái)務(wù)管理的。（3）財(cái)務(wù)管理：包括賬單號(hào)，時(shí)間和賬目。賬目用于記錄賬單號(hào)的消費(fèi)金額及時(shí)間，以便用于結(jié)算和匯總。每日的結(jié)算要通過(guò)對(duì)每個(gè)餐臺(tái)號(hào)的消費(fèi)金額匯總來(lái)記錄，然后由每日的結(jié)算匯總得出每月的結(jié)算。帳務(wù)系統(tǒng)功能的完整性。一旦該系統(tǒng)正式運(yùn)行，餐廳每日營(yíng)業(yè)帳和全部往來(lái)客戶帳務(wù)的操作結(jié)算都將依靠計(jì)算機(jī)，該系統(tǒng)面對(duì)當(dāng)前餐飲業(yè)各種復(fù)雜的結(jié)算要求應(yīng)具有很強(qiáng)的應(yīng)變能力。（4）訂餐管理：訂餐管理僅包括單價(jià)。訂餐管理是便于顧客訂餐和賬單管理時(shí)對(duì)各個(gè)菜品消費(fèi)金額的記錄，這樣便于賬單管理和財(cái)務(wù)匯總。 （5）菜品管理：菜品管理包括菜名，菜品類別和菜品品種。菜品管理便于顧客點(diǎn)菜和記錄各個(gè)餐臺(tái)的消費(fèi)記賬，菜品品種也便于餐館的食材采購(gòu)。二. 數(shù)據(jù)需求：賬單管理中賬單號(hào)是主鍵，每一個(gè)餐臺(tái)對(duì)應(yīng)一個(gè)賬單號(hào)。財(cái)務(wù)管理中賬單號(hào)是主鍵，每一個(gè)賬單號(hào)都有對(duì)應(yīng)的時(shí)間和賬目記錄。訂餐管理中單價(jià)就是主鍵。菜品管理中菜名是主鍵。系統(tǒng)管理中用戶名是主鍵。三. 性能需求：該餐飲系統(tǒng)操作簡(jiǎn)單方便可適應(yīng)各類中小型餐館。第三章 系統(tǒng)功能模塊設(shè)計(jì)一. 在該系統(tǒng)功能分析的基礎(chǔ)上，考慮powerbuilder程序編制的特點(diǎn)，得到如下功能模塊圖。小型餐飲業(yè)管理系統(tǒng)系統(tǒng)管理賬單管理訂餐管理財(cái)務(wù)管理菜品管理用戶管理密碼管理賬單號(hào)管理餐臺(tái)管理訂單查詢餐臺(tái)點(diǎn)餐管理每日賬目管理賬目時(shí)間管理菜名管理菜品管理菜價(jià)管理類別管理圖1 系統(tǒng)功能模塊圖二. 數(shù)據(jù)庫(kù)設(shè)計(jì)1. 概念結(jié)構(gòu)設(shè)計(jì)2. 邏輯結(jié)構(gòu)設(shè)計(jì)3. 數(shù)據(jù)庫(kù)實(shí)施 1) 數(shù)據(jù)庫(kù)及表結(jié)構(gòu)的創(chuàng)建 設(shè)本系統(tǒng)使用的數(shù)據(jù)庫(kù)名為小型餐飲業(yè)管理系統(tǒng),根據(jù)已設(shè)計(jì)的關(guān)系模式及各模式的完整性要求，現(xiàn)在就可以在sql server 6.x數(shù)據(jù)庫(kù)系統(tǒng)中實(shí)現(xiàn)這些邏輯結(jié)構(gòu)。下面是創(chuàng)建基本表的sql語(yǔ)句：/* = */* table: caipingl */* = */create table caipingl( cpgl_name char(20) not null, cpgl_danjia integer not null, cpgl_leibie char(8) null , cpgl_pingzhong char(8) null , cpgl_diancai integer null , constraint pk_caipingl primary key (cpgl_name, cpgl_danjia)go/* = */* table: xtgl */* = */create table xtgl( username char(20) not null, password char(8) not null, constraint pk_xtgl primary key (username, password)go/* = */* table: zhangdagl */* = */create table zhangdagl( zhangdan_number numeric not null, zhangdan_cantai numeric null , cai_zhangdan_number numeric null , constraint pk_zhangdagl primary key (zhangdan_number)go/* = */* index: relation_383_fk */* = */create index relation_383_fk on zhangdagl (cai_zhangdan_number)go/* = */* table: caiwugl */* = */create table caiwugl( zhangdan_number numeric not null, caiwu_time timestamp null , caiwu_amount char(10) null , constraint pk_caiwugl primary key (zhangdan_number)go/* = */* table: dingcangl */* = */create table dingcangl( zhangdan_number numeric not null, dcgl_name char(20) not null, dcgl_danjia int not null, constraint pk_dingcangl primary key (zhangdan_number, dcgl_name, dcgl_danjia)go/* = */* index: relation_451_fk */* = */create index relation_451_fk on dingcangl (zhangdan_number)go建立相關(guān)觸發(fā)器，執(zhí)行級(jí)聯(lián)刪除* = */* database name: model_1 */* dbms name: microsoft sql server 6.x */* created on: 2010-1-21 18:15 */* = */* insert trigger ti_caiwugl for table caiwugl */create trigger ti_caiwugl on caiwugl for insert asbegin declare numrows int, numnull int, errno int, errmsg varchar(255) select numrows = rowcount if numrows = 0 return /* parent zhangdagl must exist when inserting a child in caiwugl */ if update(zhangdan_number) begin if (select count(*) from zhangdagl t1, inserted t2 where t1.zhangdan_number = t2.zhangdan_number) != numrows begin select errno = 30002, errmsg = parent does not exist in zhangdagl. cannot create child in caiwugl. goto error end end return/* errors handling */error: raiserror errno errmsg rollback transactionendgo/* update trigger tu_caiwugl for table caiwugl */create trigger tu_caiwugl on caiwugl for update asbegin declare numrows int, numnull int, errno int, errmsg varchar(255) select numrows = rowcount if numrows = 0 return /* parent zhangdagl must exist when updating a child in caiwugl */ if update(zhangdan_number) begin if (select count(*) from zhangdagl t1, inserted t2 where t1.zhangdan_number = t2.zhangdan_number) != numrows begin select errno = 30003, errmsg = zhangdagl does not exist. cannot modify child in caiwugl. goto error end end /* modify parent code of caiwugl for all children in zhangdagl */ if update(zhangdan_number) begin update zhangdagl set cai_zhangdan_number = i1.zhangdan_number from zhangdagl t2, inserted i1, deleted d1 where t2.cai_zhangdan_number = d1.zhangdan_number and (i1.zhangdan_number != d1.zhangdan_number) end return/* errors handling */error: raiserror errno errmsg rollback transactionendgo/* delete trigger td_caiwugl for table caiwugl */create trigger td_caiwugl on caiwugl for delete asbegin declare numrows int, errno int, errmsg varchar(255) select numrows = rowcount if numrows = 0 return /* delete all children in zhangdagl */ delete zhangdagl from zhangdagl t2, deleted t1 where t2.cai_zhangdan_number = t1.zhangdan_number return/* errors handling */error: raiserror errno errmsg rollback transactionendgo/* insert trigger ti_dingcangl for table dingcangl */create trigger ti_dingcangl on dingcangl for insert asbegin declare numrows int, numnull int, errno int, errmsg varchar(255) select numrows = rowcount if numrows = 0 return /* parent zhangdagl must exist when inserting a child in dingcangl */ if update(zhangdan_number) begin if (select count(*) from zhangdagl t1, inserted t2 where t1.zhangdan_number = t2.zhangdan_number) != numrows begin select errno = 30002, errmsg = parent does not exist in zhangdagl. cannot create child in dingcangl. goto error end end return/* errors handling */error: raiserror errno errmsg rollback transactionendgo/* update trigger tu_dingcangl for table dingcangl */create trigger tu_dingcangl on dingcangl for update asbegin declare numrows int, numnull int, errno int, errmsg varchar(255) select numrows = rowcount if numrows = 0 return /* parent zhangdagl must exist when updating a child in dingcangl */ if update(zhangdan_number) begin if (select count(*) from zhangdagl t1, inserted t2 where t1.zhangdan_number = t2.zhangdan_number) != numrows begin select errno = 30003, errmsg = zhangdagl does not exist. cannot modify child in dingcangl. goto error end end return/* errors handling */error: raiserror errno errmsg rollback transactionendgo/* insert trigger ti_zhangdagl for table zhangdagl */create trigger ti_zhangdagl on zhangdagl for insert asbegin declare numrows int, numnull int, errno int, errmsg varchar(255) select numrows = rowcount if numrows = 0 return /* parent caiwugl must exist when inserting a child in zhangdagl */ if update(cai_zhangdan_number) begin select numnull = (select count(*) from inserted where cai_zhangdan_number is null) if numnull != numrows if (select count(*) from caiwugl t1, inserted t2 where t1.zhangdan_number = t2.cai_zhangdan_number) != numrows - numnull begin select errno = 30002, errmsg = parent does not exist in caiwugl. cannot create child in zhangdagl. goto error end end return/* errors handling */error: raiserror errno errmsg rollback transactionendgo/* update trigger tu_zhangdagl for table zhangdagl */create trigger tu_zhangdagl on zhangdagl for update asbegin declare numrows int, numnull int, errno int, errmsg varchar(255) select numrows = rowcount if numrows = 0 return /* parent caiwugl must exist when updating a child in zhangdagl */ if update(cai_zhangdan_number) begin select numnull = (select count(*) from inserted where cai_zhangdan_number is null) if numnull != numrows if (select count(*) from caiwugl t1, inserted t2 where t1.zhangdan_number = t2.cai_zhangdan_number) != numrows - numnull begin select errno = 30003, errmsg = caiwugl does not exist. cannot modify child in zhangdagl. goto error end end /* modify parent code of zhangdagl for all children in caiwugl */ if update(zhangdan_number) begin update caiwugl set zhangdan_number = i1.zhangdan_number from caiwugl t2, inserted i1, deleted d1 where t2.zhangdan_number = d1.zhangdan_number and (i1.zhangdan_number != d1.zhangdan_number) end /* modify parent code of zhangdagl for all children in dingcangl */ if update(zhangdan_number) begin update dingcangl set zhangdan_number = i1.zhangdan_number from dingcangl t2, inserted i1, deleted d1 where t2.zhangdan_number = d1.zhangdan_number and (i1.zhangdan_number != d1.zhangdan_number) end return/* errors handling */error: raiserror errno errmsg rollback transactionendgo/* delete trigger td_zhangdagl for table zhangdagl */create trigger td_zhangdagl on zhangdagl for delete asbegin declare numrows int, errno int, errmsg varchar(255) select numrows = rowcount if numrows = 0 return /* delete all children in caiwugl */ delete caiwugl from caiwugl t2, deleted t1 where t2.zhangdan_number = t1.zhangdan_number /* delete