Broad Spectrum Overview of Lessons Learned, Tips & Tricks, while working with Oracle XML DB

1. Real World Experience with Oracle XML Database 11g An Oracle ACE’s Perspective Marco Gralike – AMIS – OOW 2008

6. XML IS NOT RELATIONAL

7. Let’s Presume it is Relational

8. Structured Relational Data

9. Query Optimizer - Access Paths

10. Structured Data Unstructured (XML) Data

15. WHAT IS ORACLE XML DATABASE

17. Oracle XML Database SQL*Net Protocol Server Thin, Thick Clients XMLDB Funtionality

20. Making Choices - Versions 8i 9i 10g 9iR2 10gR2 XDK XMLType XSQL XDB XQuery Robustness 11g Binary XML, Partitioning XMLIndex, NDWS Performance, Strictness to Standards

21. SET-UP AND CONFIGURATION

24. OTN XMLDB Forum - FAQ Database character set is AL32UTF Client character set is WIN1252 . SQL> drop table test; SQL> create table test of xmltype; SQL> insert into test values (xmltype('<?xml version=&quot;1.0&quot; encoding=&quot; UTF-8 &quot;?><FOO/>')); SQL> select object_value from test; OBJECT_VALUE --------------------------------------------------- <?xml version=&quot;1.0&quot; encoding=&quot; WINDOWS-1252 &quot;?><FOO/>

25. NLS FAQ Continued SQL> select x.object_value.getClobVal() from test x; X.OBJECT_VALUE.GETCLOBVAL() -------------------------------------------- <?xml version=&quot;1.0&quot; encoding=&quot; UTF-8 &quot;?><FOO/> SQL> exit C:EMP>set NLS_LANG=AMERICAN_AMERICA. AL32UTF8 C:EMP>sqlplus scott/tiger SQL> select * from test; SYS_NC_ROWINFO$ -------------------------------------------- <?xml version=&quot;1.0&quot; encoding=&quot; UTF-8 &quot;?><FOO/>

27. XMLType Storage

28. Relational Contra XML Data 1 Record = ???

29. XMLTYPE Storage Logical Design Level Physical Design Level

31. Size after Inserts

32. Load Time during Inserts

33. CLOB, Object Relational, Binary XML XMLType (Tables) XMLType Views XMLDB Data Storage (Object) Relational Objects Relational Tables Relational World XMLDB World Binary XML Structured Mixed complex[y] BINARY XSD [y/n] XMLIndex Content complex[n] OR XSD [y] BTree, IOT Hybrid Content complex[n] Mixed XSD [y] BTree, IOT Unstructured Document na CLOB XSD [n] XMLIndex

38. Equi Partitioning EMP_PROJ_P11 reference_id EMPLOYEES_PROJ_TAB “ employees”.”employee” EMP_PROJ_P12 PROJ_DETAILS_TAB

39. The Protocol Server

41. Possibilities via the Protocol Server WebDAV FTP HTTP(s)

42. Native Database Web Services WSDL Structure Architecture

44. The Repository

45. The Repository

47. Storing your Scripts in the Repository SELECT xmlquery( xdburitype('/public/q1.xqy').getClob() passing OBJECT_VALUE returning content) FROM MY_XML_TABLE / declare res BOOLEAN; begin res := dbms_xdb.createResource ('/public/q1.xqy',<My Xquery>); commit; end; /

48. Data Handling

52. Selecting XML data from your Local Disk SQL> SELECT 2 xdata 3 FROM ( XMLTABLE 4 ('*' 5 passing 6 ( XMLTYPE ( bfilename ('XMLSTORE','data.xml') 7 ,NLS_CHARSET_ID('AL32UTF8'))) 8 columns xdata xmltype PATH '/*')); XDATA ------------------------------------ <root><content>Text</content></root> 1 row selected.

53. Using XML operators with SQL SQL> SELECT 2 table_name, 3 to_number( 4 extractvalue( 5 xmltype(dbms_xmlgen.getxml 6 ('select count(*) C from '||table_name)) 7 ,' /ROWSET/ROW/C ')) count 8 FROM user_tables; TABLE_NAME COUNT ------------------------------ ------ DEPT 4 EMP 14 BONUS 0 SALGRADE 5 Source Laurent Schneider : How do i store the counts of all tables …

54. RSS Example SQL> SELECT * 2 FROM XMLTABLE (XMLNAMESPACES('http://purl.org/dc/elements/1.1/' AS &quot;MGR&quot;) 3 ,'//item' 4 passing HTTPURITYPE ('http://my.blog.com/blog/?feed=rss2').getXML() 5 columns title varchar2(50) path '/item/title/text()', 6 link varchar2(50) path '/item/link/text()', 7 publication_date varchar2(50) path '/item/pubDate/text()', 8 creator varchar2(50) path '/item/MGR:creator/text()', 9 description varchar2(250) path '/item/description/text()', 10 category XMLTYPE path '/item/category/text()');

55. Accessing the outside World TITLE LINK PUBLICATION_DATE CREATOR ----------------------------------------------------------------- DESCRIPTION CATEGORY ----------------------------------------------------------------- Quering RSS Feeds The XMLDB Way http://feeds.feedburner.com/~r/Bloggralikecom/~3/3 Wed, 25 Jun 2008 16:47:19 +0000 Marco Gralike Actually this IS old stuff (2006), but it got lost IN a… < ![CDATA[11g]]>< ![CDATA[Howto]]>

56. Security

60. Troubleshooting

62. RECAP…

64. Oracle Open World 2008 - XMLDB Sessions