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題名 資料交換與查詢在XML文件與關連資料庫之間
Data Exchange and Query Language between XML Documents and Relational Databases
作者 王瑞娟
貢獻者 諶家蘭
王瑞娟
關鍵詞 關連式資料庫
資料整合
資料交換
Relational Databases
Data Integration
Data exchange
XML
日期 2002
上傳時間 9-May-2016 16:27:39 (UTC+8)
摘要   隨著全球資訊網(World Wild Web,簡稱WWW或Web)的日趨普及,我們發現愈來愈多的資料是直接從網路上呈現與存取的。不同於過去關聯式資料庫(Relational Database Management Systems,RDBMS)的結構式資料(Structured Data)。現今許多資料都是直接以HTML(Hypertext Markup Language)格式呈現,然而HTML 的標籤只是在做資料的呈現。為了讓網際網路上的資料可真正順利傳達於組織間,新興的XML逐漸受到重視。相較於HTML,XML標籤是在做資料的定義,讓定義好的資料直接透過網際網路傳達於組織間,具有在組織間再使用(Reuse)的能力,因此現在逐漸成為組織間資料整合與轉換時一個好的解決方式。但面對傳統的關連式資料庫又該如何與XML文件整合(Data Integration)的動作,讓兩種不同來源的資料能夠相互運算(Interoperability),達成異質性資料的同質化(Homogeneous)的功效。使不同來源的資料可雙向的互相溝通,是目前急欲被探討的問題。因此本研究便發展了對關聯式資料庫與XML文件兩種來源相互轉換的溝通機制,讓資料能在這兩種來源間相互交換與利用。
  With the popularity of WWW( World Wild Web or Web ),we have seen large volume of data is available on the Web. Different from the data stored in traditional RDBMS (Relational Databases Managements Systems) which is structured data, huge data now is stored directly in the form of HTML (Hypertext Markup Language) pages. For representing data and interchange data between multiple data sources on the Web, XML (Extensible Markup Language) is a fast emerging as the dominant standard. Like HTML, XML is a subset of SGML. However, whereas HTML tags serve the primary purpose of describing how to display a data item, XML tags describe the data itself. The initial impetus for XML may have been primarily to enhance this ability of remote applications to interpret and operate on documents fetched over the Internet, so it has become the best solution now to solve the problems with data exchange and translation between the multiple sources. But XML also raises a problem: how to integrate XML documents with data stored in the traditional RDBMS. The objective is to communicate bi-directional data sources between RDBMS data and XML documents, and has the ability to interoperate data between multiple data sources. Finally, reach the purpose of heterogeneous data become homogeneous. In this research, we try to develop a translation model between RDBMS data and XML documents, in order to exchange and reuse data between different sources.
參考文獻 中文部份
     1.李正軒(民89),「XML 資料文件之查詢檢索系統之研究」,交通大學資訊工程系。
     2.李孟哲(民89),「Intranet 上XML文件之資訊查詢系統」, 元智大學資訊工程研究所。
     3.徐元瑛(民89),「HTML 文件至 WML 文件之自動轉換系統」, 交通大學資訊工程研究所。
     4.陳鴻詔(民87),「以擴充式模版為主的XML文件資料庫查詢介面」,大同工學院資訊工程研究所。
     英文部份
     1.Abiteboul, Serge, Dallan Quass, Jason McHugh, Jennifer Widom and Janet Wiener (1997)," The Lorel Query Language for Semistructured Data," International Journal on Digital Libraries, 1(1),pp68-88.
     2.Arocena, Gustavo O. and Alberto O. Mendelzon (1998)," WebOQL: Restructuring Documents, Databases and Webs," In Proceedings of International Conference on Data Engineering (ICDE).
     3.Atzeni, Paolo, Giansalvatore Mecca and Paolo Merialdo (1997)," To Weave the Web," In Proceedings of the International Conference on Very Large Data Bases(VLDB), pp. 206-15.
     4.Buneman, Peter, Susan Davidson, Gerd Hillebrand and Dan Suciu (1996), "A Query Language and Optimization Techniques for Unstructured Data," In Proceedings of ACM SIGMOD Conference on Management of Data, pp505-16.
     5.Chamberlin, Don, Jonathan Robie and Daniela Florescu (2000)." Quilt: An XML Query Language for Heterogeneous Data Sources." Proceedings of WebDB 2000 Conference.
     6.Chamberlin, Donald D.(2001)," Query Languages and XML," IDEAS 2001,pp. 297-300.
     7.Deutsch, A., Mary Fernandez ,Daniela Florescu, Alon Levy and Dan Suciu (1999)," A query Language for XML," Computer Networks ,31,pp.1155-69
     8.Eisenberg, Andrew and Jim Melton (2001)," SQL/XML and the SQLX Informal Group of Companies," ACM SIGMOD RECORD, 30(3),pp.105-8
     9.Elmasri, Ramez and Shamkant B. Navathe (2000), Fundamentals of Databases Systems , Addison-Wesley
     10.Fankhauser, Peter (2001)," Xquery Formal Semantics: State and Challenges," ACM SIGMOD RECORD, 30(3),pp.14-9.
     11.Fernandez, Mary , Daniela Florescu , Jaewoo Kang , Alon Levy and Dan Suciu (1998)," Catching the Boat with Strudel: Experiences with a Web-Site Management System." In Proceedings of ACM SIGMOD Conference on Management of Data.
     12.Florescu, Daniela and Donald Kossmann (1999)." A performance Evaluation of Alternative Mapping Schemes for Sorting XML Data in a Relational Database." Technical Report No.3680, INRIA, Le Chesnay Cedex
     13.Florescu, Daniela, Alon Levy and Alberto Mendelzon (1998)," Database Techniques for the World Wide Web: A Survey,"ACM SIGMOD RECORD, pp.59-74
     14.Florescu, Daniela, Alon Levy, Mary Fernandez and Dan Suciu (1997), "A Query Language for a Web-Site Management System," ACM SIGMOD RECORD, 26(3),pp.4-11.
     15.Goldman, R., J. McHugh and J. Widom (1999)." From Semistructured Data to XML: Migrating the Lore Data Model and Query Language." Proceedings of the 2nd International Workshop on the Web and Databases (WebDB ``99).
     16.Himmeröder, Rainer, Georg Lausen, Bertram Ludäscher and Christian Schlepphorst (1997)," On a Declarative Semantics for Web Queries," In Proceedings of the International Conference on Deductive and Object-Oriented Databases(DOOD), pp386-98.
     17.Konopnicki, David (1995)," W3QS: A Query System for the World Wide Web," In Proceedings of the International Conference of Very Large Data Bases(VLDB), pp54-65.
     18.Lakshmanan, Laks V.S., Fereidoon Sadri and Iyer N. Subramanian (1996)," A Declarative Language for Querying and Restructuring the Web," In Proceedings of 6th. International Workshop on Research Issues in Data Engineering, RIDE ’96.
     19.Mendelzon, Alberto O., George A. Mihaila and Tova Milo (1996)," Querying the World Wide Web," In Proceedings. PDIS``96.
     20.Naughton, Jeffrey, David DeWitt, David Maier and many others (2001), "The Niagara Internet Query System," IEEE Data Engineering Bulletin, 24(2), pp. 27-33.
     21.Shanmugasundaram, Shekita, Kiernan, Krishnamurthy, Viglas, Naughton and Tatarinov (2001)," A General Technique for Querying XML Documents Using a Relational Database System," ACM SIGMOD RECORD.
     網路部分
     http 1. ODMG: http://www.odmg.org
     http 2. W3QS: http://www.computer.org/proceedings/icde/7807/78070586abs.htm
     http 3. XML-QL: http://www.w3.org/TR/NOTE-xml-ql/
     http 4. XQL: http://www.w3.org/TandS/QL/QL98/pp/xql.html
     http 5. Xquery: http://www.w3.org/TR/2001/WD-xquery-20010607/
     http 6. Oracle: http://technet.oracle.com/tech/xml/content.html
     http 7. DB2: http://www-3.ibm.com/software/data/db2/extenders/xmlext/
     http 8. Sybase: http://www.sybase.com/detail/1,6904,1019474,00.html
描述 碩士
國立政治大學
資訊管理學系
89356004
資料來源 http://thesis.lib.nccu.edu.tw/record/#A2010000364
資料類型 thesis
dc.contributor.advisor 諶家蘭zh_TW
dc.contributor.author (Authors) 王瑞娟zh_TW
dc.creator (作者) 王瑞娟zh_TW
dc.date (日期) 2002en_US
dc.date.accessioned 9-May-2016 16:27:39 (UTC+8)-
dc.date.available 9-May-2016 16:27:39 (UTC+8)-
dc.date.issued (上傳時間) 9-May-2016 16:27:39 (UTC+8)-
dc.identifier (Other Identifiers) A2010000364en_US
dc.identifier.uri (URI) http://nccur.lib.nccu.edu.tw/handle/140.119/95535-
dc.description (描述) 碩士zh_TW
dc.description (描述) 國立政治大學zh_TW
dc.description (描述) 資訊管理學系zh_TW
dc.description (描述) 89356004zh_TW
dc.description.abstract (摘要)   隨著全球資訊網(World Wild Web,簡稱WWW或Web)的日趨普及,我們發現愈來愈多的資料是直接從網路上呈現與存取的。不同於過去關聯式資料庫(Relational Database Management Systems,RDBMS)的結構式資料(Structured Data)。現今許多資料都是直接以HTML(Hypertext Markup Language)格式呈現,然而HTML 的標籤只是在做資料的呈現。為了讓網際網路上的資料可真正順利傳達於組織間,新興的XML逐漸受到重視。相較於HTML,XML標籤是在做資料的定義,讓定義好的資料直接透過網際網路傳達於組織間,具有在組織間再使用(Reuse)的能力,因此現在逐漸成為組織間資料整合與轉換時一個好的解決方式。但面對傳統的關連式資料庫又該如何與XML文件整合(Data Integration)的動作,讓兩種不同來源的資料能夠相互運算(Interoperability),達成異質性資料的同質化(Homogeneous)的功效。使不同來源的資料可雙向的互相溝通,是目前急欲被探討的問題。因此本研究便發展了對關聯式資料庫與XML文件兩種來源相互轉換的溝通機制,讓資料能在這兩種來源間相互交換與利用。zh_TW
dc.description.abstract (摘要)   With the popularity of WWW( World Wild Web or Web ),we have seen large volume of data is available on the Web. Different from the data stored in traditional RDBMS (Relational Databases Managements Systems) which is structured data, huge data now is stored directly in the form of HTML (Hypertext Markup Language) pages. For representing data and interchange data between multiple data sources on the Web, XML (Extensible Markup Language) is a fast emerging as the dominant standard. Like HTML, XML is a subset of SGML. However, whereas HTML tags serve the primary purpose of describing how to display a data item, XML tags describe the data itself. The initial impetus for XML may have been primarily to enhance this ability of remote applications to interpret and operate on documents fetched over the Internet, so it has become the best solution now to solve the problems with data exchange and translation between the multiple sources. But XML also raises a problem: how to integrate XML documents with data stored in the traditional RDBMS. The objective is to communicate bi-directional data sources between RDBMS data and XML documents, and has the ability to interoperate data between multiple data sources. Finally, reach the purpose of heterogeneous data become homogeneous. In this research, we try to develop a translation model between RDBMS data and XML documents, in order to exchange and reuse data between different sources.en_US
dc.description.tableofcontents 謝辭
     摘要
     Abstract
     目錄-----I
     圖目錄-----III
     表目錄-----V
     第壹章 緒論-----1
       第一節 研究動機-----1
         一、網際網路上資料整合的問題-----1
         二、XML的興起-----1
       第二節 研究問題-----2
       第三節 研究目的-----2
       第四節 研究架構-----3
       第五節 論文架構-----4
     第貳章 文獻探討-----6
       第一節 關連式資料庫之資料模式與查詢語言-----6
         一、資料模式-----6
         二、查詢語言-----7
       第二節 ODMG標準之資料模式與查詢語言-----7
         一、資料模式-----8
         二、查詢語言-----9
       第三節 超文件之資料模式與查詢語言-----9
         一、WebSQL-----10
           1. 資料模式-----10
           2. 查詢語言-----11
         二、Lorel-----12
           1. 資料模式-----13
           2. 查詢語言-----14
         三、WebOQL-----15
           1. 資料模式-----15
           2. 查詢語言-----17
         四、ARANEUS-----17
           1. 資料模式-----18
           2. 查詢語言-----18
         五、超文件資料模式與查詢語言之比較-----19
       第四節 XML資料之資料模式與查詢語言-----20
         一、XML-QL-----20
           1. 資料模式-----21
           2. 查詢語言-----23
         二、XQL-----24
           1. 資料模式-----24
           2. 查詢語言-----24
         三、Quilt-----26
           1. 資料模式-----26
           2. 查詢語言-----27
         四、Xquery-----29
           1. 資料模式-----29
           2. 查詢語言-----29
         五、Lorel-----30
           1. 資料模式-----31
           2. 查詢語言-----32
         六、XML文件資料模式與查詢語言之比較-----33
     第參章 XML文件轉成關連式資料模式-----35
       第一節 XML文件至關連資料表轉換架構說明-----36
       第二節 建立XML文件-----37
       第三節 修改XML文件-----40
       第四節 查詢XML文件-----42
       第五節 XML文件資料內容之新增、刪除、修改-----44
     第肆章 關連式的資料模式轉成XML文件-----45
       第一節 關連式的資料表轉成XML文件轉換架構說明-----45
       第二節 資料模式建立-----47
       第三節 資料模式修改-----50
       第四節 資料查詢與運算-----52
       第五節 資料之新增、刪除、修改-----56
     第伍章 雛形系統設計與建置-----58
       第一節 雛形系統架構-----58
       第二節 雛形系統發展平台-----59
       第三節 雛形系統設計架構-----59
       第四節 系統展示-----62
     第陸章 研究討論和限制-----86
       第一節 研究討論-----86
       第二節 研究限制-----87
     第柒章 結論與未來發展-----89
       第一節 結論-----89
       第二節 未來發展-----90
     參考文獻-----91
     
     圖目錄
     圖1-1 研究架構圖-----4
     圖2-1 LOREL之OEM資料模式圖-----13
     圖2-2 WEBOQL之HYPERTREE模式圖-----16
     圖2-3 ARANEUS之三層架構圖-----19
     圖2-4 XML-QL之無序資料模式圖-----21
     圖2-5 XML-QL之有序資料模式圖-----22
     圖2-6 XML-QL之IDREF(S)屬性-----322
     圖2-7 QUILT資料模式的實例:有序樹林-----27
     圖2-8 FLWR表達法的流程圖-----28
     圖2-9 XQUERY資料模式實例-----29
     圖2-10 LOREL的XML資料模式圖-----32
     圖3-1 資料模式對應圖-----35
     圖3-2 XML文件轉換至關連資料表的轉換架構-----36
     圖3-3 本研究之XML資料模式圖-----38
     圖4-1 關連式的資料表轉成XML文件轉換架構說明-----46
     圖4-2 單一關連式資料表轉為XML資料模式圖-----48
     圖4-3 多重關連式資料表轉為XML資料模式圖-----49
     圖4-4 對XML資料模式新增屬性-----51
     圖4-5 對XML資料模式刪除屬性-----52
     圖4-6 XML資料模式新增資料-----57
     圖4-7 XML資料模式刪除資料-----57
     圖5-1 雛形系統架構圖-----58
     圖5-2 雛形系統設計架構圖-----60
     圖5-3 本系統的進入畫面-----62
     圖5-4 XML文件轉至關聯資料表子系統的進入畫面-----62
     圖5-5 觀看原始XML文件畫面-----63
     圖5-6 觀看轉換至資料表紀錄畫面-----63
     圖5-7 新增元素畫面-----64
     圖5-8 新增元素完成畫面-----64
     圖5-9 觀看新增元素後之XML文件畫面-----65
     圖5-10 觀看新增元素後之資料表紀錄畫面-----65
     圖5-11 新增XML屬性畫面-----66
     圖5-12 觀看新增屬性後之XML文件畫面-----66
     圖5-13 觀看新增屬性後之資料表紀錄畫面-----67
     圖5-14 刪除元素畫面-----67
     圖5-15 觀看刪除元素後之XML文件畫面-----68
     圖5-16 觀看刪除元素後之資料表紀錄畫面-----68
     圖5-17 刪除屬性畫面-----69
     圖5-18 觀看刪除屬性後之之XML文件畫面-----69
     圖5-19 觀看刪除屬性後之資料表紀錄畫面-----70
     圖5-20 輸入XQUERY查詢畫面-----70
     圖5-21 XQUERY查詢語言轉為SQL語言畫面-----71
     圖5-22 觀看查詢結果畫面-----71
     圖5-23 關聯資料表轉至XML文件子系統的進入畫面-----72
     圖5-24 建立新資料表PERSON_TEST畫面-----72
     圖5-25 輸入資料表欄住畫面-----73
     圖5-26 新增PERSON 1資料表紀錄畫面-----73
     圖5-27 觀看原始資料表畫面74
     圖5-28 轉換為XML文件畫面-----74
     圖5-29 刪除PERSON資料表ID為3該筆紀錄之畫面-----75
     圖5-30 觀看刪除PERSON3紀錄後之資料表畫面-----75
     圖5-31 觀看刪除PERSON3紀錄後之XML文件畫面-----76
     圖5-32 選擇欲修改資料表PERSON 4資料之畫面-----76
     圖5-33 修改資料表PERSON 4之資料畫面-----77
     圖5-34 觀看修改PERSON 4 HOBBY為READING後之資料表畫面-----77
     圖5-35 觀看修改PERSON 4之HOBBY資料為READING後之XML文件畫面-----78
     圖5-36 新增PERSONTEST資料表EDUCTION欄住畫面-----78
     圖5-37 觀看新增EDUCATION欄位後之資料表畫面-----79
     圖5-38 觀看新增EDUCTION欄位後之XML文件畫面-----79
     圖5-39 選擇刪除PERSON_TEST資料表H0BBY欄住畫面-----8蛉
     圖5-40 觀看刪除HOBBY欄位後之資料表畫面-----80
     圖5-41 觀看刪除HOBBY欄位後之XML文件畫面-----81
     圖5-42 選擇修改PERSON_TEST資料表EDUCTION攔住畫面-----81
     圖5-43 修改PERSON_TEST資料表EDUCTION欄位畫面-----82
     圖5-44 觀看修改EDUCTION欄位為EDU後之資料表畫面-----82
     圖5-45 觀看修改EDU欄位後之XML文件畫面-----83
     圖5-46 輸入SQL查詢語法之查詢條件畫面-----83
     圖5-47 轉換為XQUERY查詢語法之畫面-----84
     圖5-48 將結果以表格形式呈現之查詢畫面-----84
     圖5-49 觀看原始關聯資料表畫面-----85
     圖5-50 觀看轉換為XML文件之結果畫面-----8
     
     表目錄
     表2-1 各種超文件查詢語言的比較-----19
     表2-2 各種XML文件查詢語言的比較-----33
     表3-1 四種組合轉換方法之績效結果比較-----39
zh_TW
dc.source.uri (資料來源) http://thesis.lib.nccu.edu.tw/record/#A2010000364en_US
dc.subject (關鍵詞) 關連式資料庫zh_TW
dc.subject (關鍵詞) 資料整合zh_TW
dc.subject (關鍵詞) 資料交換zh_TW
dc.subject (關鍵詞) Relational Databasesen_US
dc.subject (關鍵詞) Data Integrationen_US
dc.subject (關鍵詞) Data exchangeen_US
dc.subject (關鍵詞) XMLen_US
dc.title (題名) 資料交換與查詢在XML文件與關連資料庫之間zh_TW
dc.title (題名) Data Exchange and Query Language between XML Documents and Relational Databasesen_US
dc.type (資料類型) thesisen_US
dc.relation.reference (參考文獻) 中文部份
     1.李正軒(民89),「XML 資料文件之查詢檢索系統之研究」,交通大學資訊工程系。
     2.李孟哲(民89),「Intranet 上XML文件之資訊查詢系統」, 元智大學資訊工程研究所。
     3.徐元瑛(民89),「HTML 文件至 WML 文件之自動轉換系統」, 交通大學資訊工程研究所。
     4.陳鴻詔(民87),「以擴充式模版為主的XML文件資料庫查詢介面」,大同工學院資訊工程研究所。
     英文部份
     1.Abiteboul, Serge, Dallan Quass, Jason McHugh, Jennifer Widom and Janet Wiener (1997)," The Lorel Query Language for Semistructured Data," International Journal on Digital Libraries, 1(1),pp68-88.
     2.Arocena, Gustavo O. and Alberto O. Mendelzon (1998)," WebOQL: Restructuring Documents, Databases and Webs," In Proceedings of International Conference on Data Engineering (ICDE).
     3.Atzeni, Paolo, Giansalvatore Mecca and Paolo Merialdo (1997)," To Weave the Web," In Proceedings of the International Conference on Very Large Data Bases(VLDB), pp. 206-15.
     4.Buneman, Peter, Susan Davidson, Gerd Hillebrand and Dan Suciu (1996), "A Query Language and Optimization Techniques for Unstructured Data," In Proceedings of ACM SIGMOD Conference on Management of Data, pp505-16.
     5.Chamberlin, Don, Jonathan Robie and Daniela Florescu (2000)." Quilt: An XML Query Language for Heterogeneous Data Sources." Proceedings of WebDB 2000 Conference.
     6.Chamberlin, Donald D.(2001)," Query Languages and XML," IDEAS 2001,pp. 297-300.
     7.Deutsch, A., Mary Fernandez ,Daniela Florescu, Alon Levy and Dan Suciu (1999)," A query Language for XML," Computer Networks ,31,pp.1155-69
     8.Eisenberg, Andrew and Jim Melton (2001)," SQL/XML and the SQLX Informal Group of Companies," ACM SIGMOD RECORD, 30(3),pp.105-8
     9.Elmasri, Ramez and Shamkant B. Navathe (2000), Fundamentals of Databases Systems , Addison-Wesley
     10.Fankhauser, Peter (2001)," Xquery Formal Semantics: State and Challenges," ACM SIGMOD RECORD, 30(3),pp.14-9.
     11.Fernandez, Mary , Daniela Florescu , Jaewoo Kang , Alon Levy and Dan Suciu (1998)," Catching the Boat with Strudel: Experiences with a Web-Site Management System." In Proceedings of ACM SIGMOD Conference on Management of Data.
     12.Florescu, Daniela and Donald Kossmann (1999)." A performance Evaluation of Alternative Mapping Schemes for Sorting XML Data in a Relational Database." Technical Report No.3680, INRIA, Le Chesnay Cedex
     13.Florescu, Daniela, Alon Levy and Alberto Mendelzon (1998)," Database Techniques for the World Wide Web: A Survey,"ACM SIGMOD RECORD, pp.59-74
     14.Florescu, Daniela, Alon Levy, Mary Fernandez and Dan Suciu (1997), "A Query Language for a Web-Site Management System," ACM SIGMOD RECORD, 26(3),pp.4-11.
     15.Goldman, R., J. McHugh and J. Widom (1999)." From Semistructured Data to XML: Migrating the Lore Data Model and Query Language." Proceedings of the 2nd International Workshop on the Web and Databases (WebDB ``99).
     16.Himmeröder, Rainer, Georg Lausen, Bertram Ludäscher and Christian Schlepphorst (1997)," On a Declarative Semantics for Web Queries," In Proceedings of the International Conference on Deductive and Object-Oriented Databases(DOOD), pp386-98.
     17.Konopnicki, David (1995)," W3QS: A Query System for the World Wide Web," In Proceedings of the International Conference of Very Large Data Bases(VLDB), pp54-65.
     18.Lakshmanan, Laks V.S., Fereidoon Sadri and Iyer N. Subramanian (1996)," A Declarative Language for Querying and Restructuring the Web," In Proceedings of 6th. International Workshop on Research Issues in Data Engineering, RIDE ’96.
     19.Mendelzon, Alberto O., George A. Mihaila and Tova Milo (1996)," Querying the World Wide Web," In Proceedings. PDIS``96.
     20.Naughton, Jeffrey, David DeWitt, David Maier and many others (2001), "The Niagara Internet Query System," IEEE Data Engineering Bulletin, 24(2), pp. 27-33.
     21.Shanmugasundaram, Shekita, Kiernan, Krishnamurthy, Viglas, Naughton and Tatarinov (2001)," A General Technique for Querying XML Documents Using a Relational Database System," ACM SIGMOD RECORD.
     網路部分
     http 1. ODMG: http://www.odmg.org
     http 2. W3QS: http://www.computer.org/proceedings/icde/7807/78070586abs.htm
     http 3. XML-QL: http://www.w3.org/TR/NOTE-xml-ql/
     http 4. XQL: http://www.w3.org/TandS/QL/QL98/pp/xql.html
     http 5. Xquery: http://www.w3.org/TR/2001/WD-xquery-20010607/
     http 6. Oracle: http://technet.oracle.com/tech/xml/content.html
     http 7. DB2: http://www-3.ibm.com/software/data/db2/extenders/xmlext/
     http 8. Sybase: http://www.sybase.com/detail/1,6904,1019474,00.html
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