freepeople性欧美熟妇, 色戒完整版无删减158分钟hd, 无码精品国产vα在线观看DVD, 丰满少妇伦精品无码专区在线观看,艾栗栗与纹身男宾馆3p50分钟,国产AV片在线观看,黑人与美女高潮,18岁女RAPPERDISSSUBS,国产手机在机看影片

正文內(nèi)容

數(shù)據(jù)庫課程設(shè)計(jì)-物資管理系統(tǒng)設(shè)計(jì)(編輯修改稿)

2025-09-03 22:26 本頁面
 

【文章內(nèi)容簡(jiǎn)介】 lypricenumeric(8, 2)N單價(jià)lyvaluenumeric(10, 2)N金額lydatedatetimeN領(lǐng)用時(shí)間lydeal_personchar(10)NPK領(lǐng)用人lysave_personchar(10)N保管人lybasechar(10),PK倉庫lymemotext備注在完成了數(shù)據(jù)庫的邏輯設(shè)計(jì)之后,即可開始數(shù)據(jù)庫的物理設(shè)計(jì)?;谝陨蠑?shù)據(jù)庫邏輯設(shè)計(jì),考慮到程序設(shè)計(jì)的簡(jiǎn)易性及通用性,本物資管理信息系統(tǒng)采用的Microsoft SQL Server 2000數(shù)據(jù)庫,并在其下創(chuàng)建了一個(gè)數(shù)據(jù)庫和4個(gè)數(shù)據(jù)表。 建立概念數(shù)據(jù)庫模型根據(jù)前面的概念和邏輯模型設(shè)計(jì),我們?cè)赑owerDesigner12中建立 ConceptualDataModel_1。 將概念模型轉(zhuǎn)換成物理模型概念模型建好后,在PowerDesigner12的T ools選項(xiàng)中選擇Generate new Physical Data Model,將概念模型轉(zhuǎn)換成物理模型。 生成數(shù)據(jù)庫代碼建好物理模型后,在Database選擇Generate Database,生成數(shù)據(jù)庫代碼,以下是建立數(shù)據(jù)庫及其表格的代碼(1)建數(shù)據(jù)庫use mastergoif exists (select * from where name = 39。MMS39。) drop database MMSGOcreate database MMSgouse MMSGo(2)建表if exists (select * from where id = object_id(N39。[dbo].[material]39。) and OBJECTPROPERTY(id, N39。IsUserTable39。) = 1)drop table [dbo].[material]GOif exists (select * from where id = object_id(N39。[dbo].[msave]39。) and OBJECTPROPERTY(id, N39。IsUserTable39。) = 1)drop table [dbo].[msave]GOif exists (select * from where id = object_id(N39。[dbo].[msurplus]39。) and OBJECTPROPERTY(id, N39。IsUserTable39。) = 1)drop table [dbo].[msurplus]GOif exists (select * from where id = object_id(N39。[dbo].[muse]39。) and OBJECTPROPERTY(id, N39。IsUserTable39。) = 1)drop table [dbo].[muse]GOCREATE TABLE [dbo].[material] ( [wzid] [char] (8) COLLATE Chinese_PRC_CI_AS NOT NULL , [wzname] [char] (20) COLLATE Chinese_PRC_CI_AS NOT NULL , [wzspec] [char] (20) COLLATE Chinese_PRC_CI_AS NOT NULL , [wzkind] [char] (10) COLLATE Chinese_PRC_CI_AS NULL , [wzunit] [char] (10) COLLATE Chinese_PRC_CI_AS NULL ) ON [PRIMARY]GOCREATE TABLE [dbo].[msave] ( [rkno] [char] (14) COLLATE Chinese_PRC_CI_AS NOT NULL , [rkid] [char] (8) COLLATE Chinese_PRC_CI_AS NOT NULL , [rkname] [char] (20) COLLATE Chinese_PRC_CI_AS NULL , [rkspec] [char] (20) COLLATE Chinese_PRC_CI_AS NULL , [rkkind] [char] (10) CO
點(diǎn)擊復(fù)制文檔內(nèi)容
物理相關(guān)推薦
文庫吧 www.dybbs8.com
備案圖片鄂ICP備17016276號(hào)-1