【正文】 cessing for the optimization process. The result is often some relational database products, in the GUI and Web Services processing, not achieved the desired results. Unless additional hardware investment, but it does not resolve the fundamental problem. Relations with the twodimensional database table data model can deal with the majority of business application of a typical multi dimensional data, but the results are often the establishment and use of a large amount of data forms, it is difficult to establish a simulation of realworld data model. And the need for data output statements when they, in turn, would have dispersed the large number of twodimensional data tables. Reuse indexing technology linking the table in order to find all the necessary data, this, in turn, is bound to affect the use of the response speed. Database various databases is currently the most important and the most popular database. Relational database system to support the relational model of database systems, relationships between data model structure, relations operation and integrity constraint set is posed of three parts. Office Access2000 is the Chinese version of one of the ponents. Access2000 to the previous version, the Access2000 is not only a more friendly interface, but their functions have also been strengthened, especially network function was improved, Internet Access2000 so that it more closely connected. Access2000 is a small and mediumsized database management system, easy to use, powerful, and other databases have a good interface. Access2000 through powerful tool, users can facilitate the use and management of databases, such as the creation and editing of data tables, design and the use of various tools inquiries query operation, design and the use of windows, production and printing statements, the design and use of Acer, the design and use of such Web pages. May also be used in Visual (Visual for Application)Advanced Application Development procedures. Access2000 is a plete database application development tool, the user can design, modify, View a record of the basic data table。 design and use of Acer, a series of tables for specific operations. Access2000 with a strong operational guide, and to provide users with a rich database table basic template. Users only need a simple database operations can be established by using the basic form, Form and statements. In Access2000, can be set, to alter the basic correlation between the tables, thus achieving a number of related tables in the relationship between the inquiries. Access2000The operation can achieve automation, the operator is more simple and efficient. Access2000 to enhance the network function, users can plete the ease of web publication. Access2000 can not only deal with their own database files. Could also address some other database management software system established by the database files, the ability to distinguish Base. FoxBASE, FoxPro, Paradox, database formats, such as documents, and support the open database connectivity standard (ODBC) SQL. Access2000 with workstations, servers or databases on the mainframe database interconnected and can be used for building client/server applications of the workstation. And other relational database management systems, Access2000 have the following advantages: Storage single document. Access2000 of a database file contains the database of all data tables, query, windows, all statements, and other data manageable. Support for long file names and file name can be added to the blank, documents easily prehensible search. Powerful network function can be transmitted through the network data. Easy to use, you do not need to understand the programming language can easily design and development of database applications. Can handle a variety of data and information, such as text files and other databases of documents. Access2000關(guān)系型數(shù)據(jù)庫在Office家族成員中，人們對于Access2000的了解，往往只局限在它的操作界面中，對于數(shù)據(jù)庫管理的功能仍只是停留在建立表、數(shù)據(jù)輸入、使用窗體向?qū)?、報表向?qū)?、?shù)據(jù)訪問頁向?qū)У纫恍┖唵蔚膽?yīng)用上。它可以有效地組織、管理和共享數(shù)據(jù)庫的信息，并將數(shù)據(jù)庫信息與Web結(jié)合在一起并通過Internet共享數(shù)據(jù)庫信息提供了基礎(chǔ)平臺。數(shù)據(jù)庫是存儲在一起的相關(guān)數(shù)據(jù)的集合，這些數(shù)據(jù)是結(jié)構(gòu)化的，數(shù)據(jù)庫是一種存儲數(shù)據(jù)并對數(shù)據(jù)進(jìn)行操作的工具。 關(guān)系數(shù)據(jù)庫管理系統(tǒng)曾處于技術(shù)主流而獨(dú)領(lǐng)風(fēng)騷，但是這種傳統(tǒng)的數(shù)據(jù)庫管理系統(tǒng)因采用兩維數(shù)據(jù)模型，而存在著本身固有的約束和限制。 此外，隨著熱門網(wǎng)站訪問數(shù)量的激增，對數(shù)據(jù)庫本身的存儲機(jī)制、大量并發(fā)用戶的使用需求、存儲空間的使用效率、以及數(shù)據(jù)的完整性和安全性等方面都提出了更高要求。數(shù)據(jù)表示圖提供了一種類似于 Excel 的電子表格，可以使數(shù)據(jù)庫一目了然。如上所述，Access2000作為關(guān)系數(shù)據(jù)庫開發(fā)具備了許多優(yōu)點，可以在一個數(shù)據(jù)包中同時擁有桌面數(shù)據(jù)庫的便利和關(guān)系數(shù)據(jù)庫的強(qiáng)大功能。如果一個用戶同時具有上述兩種權(quán)限，當(dāng)該用戶對設(shè)置了安全性的數(shù)據(jù)庫進(jìn)行訪問時，那么，他所具有的權(quán)限就是兩種權(quán)限的交集。其不可避免的結(jié)果是，在復(fù)雜方式下，相互作用表的數(shù)量激增，而且還不能很好地提供模擬現(xiàn)實數(shù)據(jù)關(guān)系的模型。其結(jié)果往往是某些關(guān)系型數(shù)據(jù)庫產(chǎn)品，在對GUI和Web的事務(wù)處理過程中，沒有達(dá)到預(yù)期的效果。 關(guān)系數(shù)據(jù)庫目前是各類數(shù)據(jù)庫中最重要、最流行的數(shù)據(jù)庫?！　ccess2000是一個中、小型數(shù)據(jù)庫管理系統(tǒng)，使用方便、功能強(qiáng)大，與其它數(shù)據(jù)庫有良好的接口?！　ccess2000內(nèi)有強(qiáng)大的操作向?qū)В瑸橛脩籼峁┝素S富的數(shù)據(jù)庫基本表模板。 　　Access2000增強(qiáng)了網(wǎng)絡(luò)功能，用戶可以輕松自如地完成網(wǎng)頁發(fā)布等。Access2000的一個數(shù)據(jù)庫文件中包含了該數(shù)據(jù)庫中的全部數(shù)據(jù)表、查詢、窗體、報表等所有數(shù)據(jù)，便于管理?！　】梢蕴幚矶喾N數(shù)據(jù)信息，如文本文件和其它數(shù)據(jù)庫文件。　　具有強(qiáng)大的網(wǎng)絡(luò)功能，可通過網(wǎng)絡(luò)傳送數(shù)據(jù)。　　Access2000能與工作站、數(shù)據(jù)庫服務(wù)器或主機(jī)上的各種數(shù)據(jù)庫互相連接，并可用于建立客戶/服務(wù)器應(yīng)用程序中的工作站部分?！　≡贏ccess2000中，可以設(shè)定、修改基本表之間的關(guān)聯(lián)，從而實現(xiàn)在多個相關(guān)表之間的關(guān)系查詢。還可使用Visual （Visual for Application）開發(fā)高級應(yīng)用程序。Access2000是Office2000中文版的組件之一。 用關(guān)系數(shù)據(jù)庫的兩維表數(shù)據(jù)模型，可以處理在大多數(shù)事務(wù)處理應(yīng)用中的典型多維數(shù)據(jù)，但其結(jié)果往往是建立和使用大量的數(shù)據(jù)表格，仍很難建立起能模擬現(xiàn)實世界的數(shù)據(jù)模型。而且，在現(xiàn)實數(shù)據(jù)中，有許多類型是關(guān)系數(shù)據(jù)庫不能較好地處理的。設(shè)置的權(quán)限包括：“打開/運(yùn)行”，讀取設(shè)計、修改設(shè)計、管理、讀取數(shù)據(jù)，更新數(shù)據(jù)、插入數(shù)據(jù)和刪除數(shù)據(jù)。顯式權(quán)限是指直接授予某一用戶賬號的權(quán)限，這是該用戶賬號專用的，與其他用戶無關(guān)。 Access2000也提供了數(shù)據(jù)存儲庫，可以使用桌面數(shù)據(jù)庫文件把數(shù)據(jù)庫文件置于網(wǎng)絡(luò)文件服務(wù)器，與其他網(wǎng)絡(luò)用戶共享數(shù)據(jù)庫。 Access2000 就是關(guān)系數(shù)據(jù)庫開發(fā)工具，數(shù)據(jù)庫能匯集各種信息以供查詢