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賬號(hào)、配置環(huán)境變量和系統(tǒng)錯(cuò)誤出處等,控制 SQL Server的用戶數(shù)據(jù)庫(kù)和操作。 Pubs和 Northwind數(shù)據(jù)庫(kù)是兩個(gè)實(shí)例數(shù)據(jù)庫(kù),它們可以作為 SQL Server的學(xué)習(xí)工具。 ( 1)授予用戶 Dick創(chuàng)建數(shù)據(jù)庫(kù)和創(chuàng)建表的許可: Use master Grant create database, create table to Dick ( 2)拒絕用戶 Tom在 pany數(shù)據(jù)庫(kù) employee表中使用 insert, update語句來更改數(shù)據(jù)庫(kù): Use pany Deny insert, update On employee to Tom 撤銷權(quán)限 (補(bǔ)充 ) Use pany Revoke insert,update On employee to tom TansactSQL語句,在數(shù)據(jù)庫(kù)的收費(fèi)信息表中查詢業(yè)主 ID為 02202的住戶是否 10樓以上的高層住戶,如果是,顯示‘此業(yè)主為 10樓以上高層住戶’,否則顯示‘此業(yè)主為 10樓以下低層住戶’。 說明:平均價(jià)格在 30以下,則將價(jià)格 *2,直到大于 30,但同時(shí)要讓價(jià)格的最大值不不超過 50,如果超過,則自我表現(xiàn)跳出循環(huán),同時(shí),顯示 39。 張華:曾老師:您好 ! 請(qǐng)問今年《物業(yè)信息管理》課程的考試題與去年相比,難度是否增大了? 曾海:難度沒有變化,與往屆一致,放心,按照期末復(fù)習(xí)指導(dǎo)的內(nèi)容復(fù)習(xí),做會(huì)上面全部習(xí)題基本上就可以了 《物業(yè)信息管理》 形成考核作業(yè) 4參考答案 第 六 章 。 系統(tǒng)設(shè)計(jì)階段 :在系統(tǒng)分析的基礎(chǔ)上,進(jìn)行總體結(jié)構(gòu)設(shè)計(jì)、代碼設(shè)計(jì)、數(shù)據(jù)庫(kù)(文件)設(shè)計(jì)、輸入 /輸出設(shè)計(jì)、模塊結(jié)構(gòu)與功能設(shè)計(jì),根據(jù)總體設(shè)計(jì),配置與調(diào)試部分設(shè)備,進(jìn)行試驗(yàn),最終給出系統(tǒng)的物理模型和系統(tǒng)設(shè)計(jì)報(bào)告。構(gòu)成系統(tǒng)的一個(gè)生命周期。 先將整個(gè)信息系統(tǒng)開發(fā)過程劃分為若干個(gè)相對(duì)獨(dú)立的階段(系統(tǒng)規(guī)劃、系統(tǒng)分析、系統(tǒng)設(shè)計(jì)、系統(tǒng)實(shí)施等); 在前三個(gè)階段堅(jiān)持自頂向下地對(duì)系統(tǒng)進(jìn)行結(jié)構(gòu)化劃分:在系統(tǒng)調(diào)查和理順管理業(yè)務(wù)時(shí),應(yīng)從最頂層的管理業(yè)務(wù)入手,逐步深入至最基層;在系統(tǒng)分析,提出目標(biāo)系統(tǒng)方案和系統(tǒng)設(shè)計(jì)時(shí),應(yīng)從宏觀整體考慮入手,先考慮系統(tǒng)整體的優(yōu)化,然后再考慮局部的優(yōu)化問題。結(jié)構(gòu)化的開發(fā)方法也有不足之處, 突出表現(xiàn)在,開發(fā)過程繁瑣復(fù)雜,靈活性較差,開發(fā)周期長(zhǎng),并且這種方法要求開發(fā)者在調(diào)查中充分掌握用戶需求、管理狀況以及預(yù)見可能發(fā)生的變化,不符合人們認(rèn)識(shí)事物循序漸進(jìn)式的認(rèn)識(shí)規(guī)律,在實(shí)際工作中有一定的難度。 5.物業(yè)管理信息系統(tǒng)開發(fā)時(shí)系統(tǒng)分析的主要任務(wù)? 物業(yè)管理信息系統(tǒng)分析的任務(wù)是:在充分認(rèn)識(shí)原信息系統(tǒng)的基礎(chǔ)上,通過問題識(shí)別、可行性分析、詳細(xì)調(diào)查、系統(tǒng)化分析,最后完成新系統(tǒng)的邏輯方案設(shè)計(jì),或稱邏輯模型設(shè)計(jì)。 下面我們以工程管理業(yè)務(wù)流程為例,畫出為物業(yè)管理信息系統(tǒng)中工程管理的業(yè)務(wù)流程圖 (圖略) 工程管理的業(yè)務(wù) 流程圖 某物業(yè)管理信息系統(tǒng)中設(shè)備管理系統(tǒng)的頂層數(shù)據(jù)處理流程圖(圖略) 設(shè)備管理系統(tǒng)頂層數(shù)據(jù)流程圖 7.系統(tǒng)分析報(bào)告應(yīng)當(dāng)包括哪些內(nèi)容? 系統(tǒng)分析報(bào)告應(yīng)包括以下幾個(gè)方面的內(nèi)容。 新系統(tǒng)的開發(fā)費(fèi)用以及時(shí)間進(jìn)度估算:對(duì)新系統(tǒng)開發(fā)的費(fèi)用以及時(shí)間進(jìn)度進(jìn)行初步的估算。 ③優(yōu)化總體設(shè)計(jì)方案,并進(jìn)行方案評(píng)估。 ③輸入輸出設(shè)計(jì):設(shè)計(jì)輸入輸出的方式與格式,便于數(shù)據(jù)處理和用戶使用。 ②自頂向下地逐步分解:這一思想指明了模塊劃分工作的層次性,即應(yīng)先設(shè)計(jì)頂層結(jié)構(gòu),再逐步細(xì)化。 5.?dāng)?shù)據(jù)庫(kù)設(shè)計(jì)的主要步驟什么? 通常數(shù)據(jù)庫(kù)設(shè)計(jì)的內(nèi)容包括以下四個(gè)部分。 順序結(jié)構(gòu):順序結(jié)構(gòu)的程序,始終按照語句排列的先后次序,一條接一條地依次執(zhí)行。 循環(huán)結(jié)構(gòu)的示意圖如所示: 2.簡(jiǎn)述系統(tǒng)測(cè)試的目的以及系統(tǒng)測(cè)試的分類。 3.系統(tǒng)轉(zhuǎn)換有哪些方式?各自有什么特點(diǎn)? 系統(tǒng)轉(zhuǎn)換方式通常有三種: 轉(zhuǎn)換:直接轉(zhuǎn)換是在 原有系統(tǒng)停止運(yùn)行時(shí),新系統(tǒng)立刻投入運(yùn)行,中間沒有過渡階段。 采用平行轉(zhuǎn)換的優(yōu)點(diǎn)是風(fēng)險(xiǎn)較小,在轉(zhuǎn)換期間還可同時(shí)比較新、舊兩個(gè)系統(tǒng)的性能,讓系統(tǒng)操作員和其他有關(guān)人員得到全面培訓(xùn)。一般比較大的系統(tǒng)采用這種轉(zhuǎn)換方式較為適宜。 請(qǐng)您刪除一 下內(nèi)容, O(∩_∩)O謝謝!??! 2021 年中央電大期末復(fù)習(xí)考試小抄大全,電大期末考試必備小抄,電大考試必過小抄 Shanghai’s Suzhou Creek has witnessed much of the city’s history. Zhou Wenting travels this storied body of water and finds its most fascinating spots. Some lucky cities can boast a great body of water, like London with the river Thames and Paris with the river Seine. Shanghai is privileged enough to have two great bodies of water: Huangpu River and Suzhou River became famous when colonists established clusters of grand buildings on its banks on what became known as the bund. Today, the bund overlooks the breathtaking skyline of Lujiazui financial district. Shanghai’s other body of water, however, Suzhou Creek, has been somewhat overshadowed. Suzhou Creek links the inland cities of Jiangsu province with Shanghai. When the British colonists, who arrived in the city after it was opened as a mercial port in 1843 found they could reach Suzhou, Jiangsu province, via the creek, they named it Suzhou Creek. Thanks to its location, a large amount of cargo and travelers were transported via the creek before rail links were established. But after a century of being utilized as a waterway to transport goods and labor, the creek grew dark and smelly. Industrial factories were established along the banks. In the 1990s it became a key task of the city government to clean the creek. Suzhou Creek, which snakes 17 km from the iconic Waibaidu Bridge downtown to the outer ring road in west Shanghai, maps the changing periods of the city’s history, including the imprints of the concessions, the beginning of industrialization and the improvement in people’s living conditions. Where the Bund began Inbetween the shopping street of East Nanjing Road and the Bund, are a cluster of streets that give me the illusion that I am no longer in modern Shanghai. The streets are narrow and old and criss cross each other. Any old residential house may turn out to be a former office of the British, constructed in the 1880s. Pawnshops and hardware stores that are hard to find elsewhere, are plentiful here. This area, at the confluence of Huangpu River and Suzhou Creek, is called the Bund Origin. Countless tour buses stop at the site every day and visitors from around the world get off to see this place, the starti