【正文】 es or Chaozuo recently by the media is very fiery, the IT industry is not facing a pile of technical terms it is very difficult to clarify terminology ASP content, the paper tried to use simple language to the broad masses of readers opened the mysterious veil of ASP, IT Top of the ASP industry areas have some basic of ASPThe research to ASP mode and ASP enterprise39。s origin can proceed with two respects , one to in terms of business and technology , is it carry on research to e from ASP developing history that business mit。s stand up synthetically abovementioned developing stage, to put it briefly, present ASP history and development path of provider can simple to describe as: The first, developed from the past ISP, rounded the infrastructure and munication function, cooperate with software manufacturer, increase the business scope, develop into the present IDC(the data centre of Internet)；The second，the past ISV(independent software provider)and VAR(the trader that resells valueadded service), at Internet age , changed the marketing way in the past , would rely mainly on sale of the software product to change direction to rely mainly on the fact that right to use is leased in the past, bale from physics carrier encapsulation way change direction and longrange operation way main fact now, through the cooperation with network operator , realize the transition to ASP；The third，IT service departments and traditional advisory panies of traditional largescale organization, at the foundation known deeply in Internet , depend on longterm experience, is it carry on systematic design and implementation of scheme for other customer to begin, through establish in with trader who operates network and alliance relation between the application software manufacturer, realize the ASP provider that appears in the capacity of system integration developing history and classification of ASPSeen from the present, ASP is as emerging and proposing formally it is only a thing from the end of 1998 to the beginning of 1999 of a kind of until from the end of 1999 to the beginning of 2000 to a great extent, ASP field relevant東華理工大學(xué)畢業(yè)設(shè)計（外文翻譯）英文原文outstanding behaviors at the capital market of Company just cause people39。Using the script of ASP can let the customer inspect the current service, parison expenses and prepare to book too can lower in the Windows NT Option Microsoft in the pack Transaction Server(MTS)on the server plexity of constructing the procedure with MTS can resolve to develop those confidentialities strong, can ratings of and the dependable Web applies the plexity problem of the Server Pages model The browser requests from the server of of asp document, the script of ASP starts the server of Web adjusts to use the ASP, the ASP reads pletely the document of the claim, carry out all scripts order any, bining to deliver the page of Web to script is on the server but is not at the customer to carry the movement, deliver the page of Web on the browser is on the Web server to deliver the standard HTML to only the result that there is script returns the browser, so the server carries the not easy replication in customer cans not see to create to set up them at script order that the page that introduce the Basic form of the database language known as SQL, a language that allows us to query and manipulate data on puterized relational database has been the lingua franca for RDBMS since the early 1980s, and it is of fundamental importance for many of the concepts presented in this SQL language is currently in transition from the relational form(the ANSI SQL – 92 standard)to a newer objectrelational form(ANSI SQL99, which was released in 1999).SQL99 should be thought of as extending SQL92, not changing any of the earlier valid , the basic SQL we define matches most closely the ANSI SQL standards basic subsets, called Entry SQL92 and core SQL99 that are monly implemented。使用 ASP 可以組合 HTML 頁、腳本命令和 ActiveX 組件以創(chuàng)建交互的 Web 頁和基于 Web 的功能強大的應(yīng)用程序。當(dāng)在Web站點中融入ASP功能后，將發(fā)生以下事情：（1）用戶向瀏覽器地址欄輸入網(wǎng)址，；（2）瀏覽器向服務(wù)器發(fā)出請求；（3）服務(wù)器引擎開始運行ASP程序；（4）ASP文件按照從上到下的順序開始處理，執(zhí)行腳本命令，執(zhí)行HTML頁面內(nèi)容；（5）頁面信息發(fā)送到瀏覽器；ASP需要運行在PWS或IIS下。一般asp需與access數(shù)據(jù)庫或SQL Server數(shù)據(jù)庫結(jié)合使用，編出功能強大的程序。PWS(personal web server)運行在windows98環(huán)境下的簡單個人網(wǎng)頁服務(wù)器。基本上，ASP即具有“軟體服務(wù)化,服務(wù)網(wǎng)路化”,“資訊委外服務(wù)與網(wǎng)路結(jié)合”與“產(chǎn)品通路化，通路產(chǎn)品化”等三大特性，甚至可以被視為是ISP（Internet Service Provider）與ITS（Information Technology Service）的結(jié)合。最近ASP被媒體炒作的十分火熱，不是IT行業(yè)的人面對一堆技術(shù)名詞專業(yè)術(shù)語很 東華理工大學(xué)畢業(yè)設(shè)計（外文翻譯）漢語翻譯難弄清楚ASP的內(nèi)容，本文試圖用淺顯的語言來為廣大的讀者揭開ASP神秘的面紗，對于IT行業(yè)的大熱門ASP領(lǐng)域有一些基本的認識。將上述發(fā)展階段綜合起來，簡單的說，目前的ASP提供商的歷史和發(fā)展道路可以簡單的描述為：第一類，從過去的ISP發(fā)展起來，圍繞基礎(chǔ)設(shè)施和通訊功能，與軟件廠商合作，增加業(yè)務(wù)范圍，發(fā)展到現(xiàn)在的IDC（互聯(lián)網(wǎng)數(shù)據(jù)中心）；第二類，過去的ISV（獨立軟件提供商）和VAR（增值服務(wù)轉(zhuǎn)售商），在互聯(lián)網(wǎng)時代，改變過去的營銷方式，將過去以軟件產(chǎn)品的出售為主轉(zhuǎn)向以使用權(quán)租賃為主，從物理載體的打包封裝方式轉(zhuǎn)向現(xiàn)在在線和遠程運行方式為主，通過與網(wǎng)絡(luò)運營商的合作，實現(xiàn)向ASP的轉(zhuǎn)型；第三類，傳統(tǒng)的大型組織的IT服務(wù)部門和傳統(tǒng)的咨詢公司，在對于互聯(lián)網(wǎng)的深刻認識的基礎(chǔ)上，依靠長期的經(jīng)驗，開始為其他客戶進行系統(tǒng)方案的設(shè)計和實施，通過建立在與網(wǎng)絡(luò)運行商和應(yīng)用軟件制造商之間的聯(lián)盟關(guān)系，實現(xiàn)以系統(tǒng)集成商身份出現(xiàn)的ASP提供商。而很大程度上直到1999年末到2000年初，ASP領(lǐng)域相關(guān)公司在資本市場上的突出表現(xiàn)才引起了人們的廣泛關(guān)注。在本節(jié)中，我們將回顧ASP產(chǎn)生發(fā)展演變的過程，以幫助更好的深入理解ASP的本質(zhì)。HTML 編寫人員 如果您是位 HTML 編寫人員，您將發(fā)現(xiàn) ASP 腳本提供了創(chuàng)建交互頁的簡便方法。以前，要想從 HTML 表格中收集數(shù)據(jù)，就不得不學(xué)習(xí)一門編程語言來創(chuàng)建一個 CGI 應(yīng)用程序。您再不必學(xué)習(xí)完整的編程語言或者單獨編譯程序來創(chuàng)建交互頁。對于 ASP，您可以便捷地使用 ActiveX 組件來執(zhí)行復(fù)雜的任務(wù)，比如連接數(shù)據(jù)庫以存儲和檢索信息。只要安裝了符合 ActiveX 腳本標(biāo)準(zhǔn)的相應(yīng)腳本引擎，就可以在 ASP 頁中使用任何一種腳本語言。PERL、REXX 和 Python 的 ActiveX 腳本引擎可以從第三方開發(fā)人員處獲得。通過向 HTML 中添加腳本命令，您能夠創(chuàng)建應(yīng)用程序的 HTML 接口。使用 ASP 進行計算的 Web 可轉(zhuǎn)化為有形的利益，它使 Web 供應(yīng)商能夠提供交互的商業(yè)應(yīng)用而不僅僅是發(fā)布內(nèi)容。包含在 Windows NT Option pack 中的 Microsoft Transaction Server（MTS）可以降低在服務(wù)器上構(gòu)造程序的復(fù)雜性和費用。 Server Pages模型瀏覽器從 Web 文件時，然后 Web ASP 腳本開始運行。由于腳本在服務(wù)器上而不是在客戶端運行，傳送到瀏覽器上的 Web 頁是在 Web 服務(wù)器上生成的。由于只有腳本的結(jié)果返回到瀏覽器，所以服務(wù)器端腳本不易復(fù)制。我們將介紹著名數(shù)據(jù)庫語言的SQL的基本形式。從80 年代初期，SQL就一直是關(guān)系數(shù)據(jù)庫管理系統(tǒng)的語言，而且它是有著重要的意義的在對許多概念中，都在本文 東華理工大學(xué)畢業(yè)設(shè)計（外文翻譯）漢語翻譯里提到。SQL99 是SQL92的延伸，它不改變所有早期版本的優(yōu)秀的語言。我們也介紹了ENTRY SQL9CORE SQL99之外一些廣泛實現(xiàn)的特性。首先，我們總的研究SQL的特性，然后對SQL的多種形式標(biāo)準(zhǔn)和產(chǎn)品語言以及我們將如何具體地處理這些標(biāo)準(zhǔn)和產(chǎn)品語言進行分析解釋。這將讓我們看到，在編寫查詢語句時SQL中的SELECT在很多方面都比關(guān)系代數(shù)強大。對那些周密的擴展語法來說，沒有關(guān)系代數(shù)所不能實現(xiàn)的。同時在許多方面，SQL語句和關(guān)系代數(shù)概念模型又有著相當(dāng)大的差異，而可以通過熟悉、理解關(guān)系代數(shù)增強對SQL的理解。SQL的SELECT語句比簡單的關(guān)系代數(shù)更難，但只要能夠上機實踐，只需幾個典型實驗就收