Showing the versioning capabilities of Oracle's XML-DB by creating a version control system for Application Express (APEX) - built in APEX itself!

1. XFILES – The APEX 4 Version
XFILES
The APEX 4 Version
The truth is in there…
Roel Hartman & Marco Gralike

2. What about me?
• Oracle since v5, Forms 2.3, Case*Designer etc
• Presenter at UKOUG (4x), OOW (3x), Collab (1x),
ODTUG (2x), OBUG, OGH, etc..
• Oracle ACE Director [DB Dev]
• Co-author of Expert Oracle Application Express

3. What about me?
• Oracle DBA since v6 (1993), XML-DB since (2003)
• Presenter (among others): UKOUG, Oracle Open
World,MOW, Hotsos, OGH, OPP, ODTUG, UKOUG
• Oracle 11gRx database, XBRL Extension Beta trails
• Oracle ACE Director [XML-DB]
• OakTable member
• Customer Advisory Member Board XML-DB Oracle 12x

4. History

5. XFILES - XMLDB
• XML-DB Demo Application
GUI based on AJAX / HTML
Current version XFILES version V
• Mark Drake
Senior Product Manager
Oracle XML-DB
• Demonstrates (among others)
Native Database WebServices (NDWS) / SOA
Geo Information based XML handling

6. XFILES - APEX
• APEX GUI
• W/ help of Carl Backstrom
XFILES version IV
• Oracle Open World 2008
• Demonstrated Combined Power
APEX (V 3)
XML-DB (V 11.1)
Versioning & Lightweight Application Security

7. XML-DB
• Based on XML (&Related) Standards
• XML Handling
Stores, Consumes, Generates, Validation
• XDB Repository
HTTP(s), FTP & WebDAV
Repository Events
• Supports Security (ACL’s) & Versioning
• XPath V2, XSLT V1, XQuery V1, XBRL

8. Features Used
• XDB Repository
• Versioning, CheckIn/Out functionality
DBMS_XDB_VERSION
• Resource (file, folder) manipulation
DBMS_XDB
• Default XDB ACL Driven Security

9. XDB Repository Resources
• Access to XDB Repository
PATH_VIEW, RESOURCE_VIEW
• XDB$Resource
XDBResource.xsd
XMLType Table (Schema based XML Table)
• Select, Update, Delete
UNDER_PATH, EQUALS_PATH

10. Version Control
Lock the Make it
Create Resource
Resource Versioned
Update the
Check it Out Check It In
Resource
UnLock the
Resource

11. Process Flow
# Create file / dbms_xdb.createResource
1. dbms_xdb.lockResource
2. dbms_xdb_version.makeVersioned
3. dbms_xdb_version.checkOut
# Update file content
4. dbms_xdb_version.checkIn
5. dbms_xdb.unlockResource
# Done…

12. Create Versioned Resource
Original source, with permission, by Mark D Drake, Senior Product Manager, Oracle USA

13. Create Versioned Resource
Original source, with permission, by Mark D Drake, Senior Product Manager, Oracle USA

14. Create Versioned Resource
Original source, with permission, by Mark D Drake, Senior Product Manager, Oracle USA

15. Create Versioned Resource
Original source, with permission, by Mark D Drake, Senior Product Manager, Oracle USA

16. Create Versioned Resource
Original source, with permission, by Mark D Drake, Senior Product Manager, Oracle USA

17. Create Versioned Resource
Original source, with permission, by Mark D Drake, Senior Product Manager, Oracle USA

18. Helper Function: getVersionHistory
Original source, with permission, by Mark D Drake, Senior Product Manager, Oracle USA

19. XMLTable Statement
Original source, with permission, by Mark D Drake, Senior Product Manager, Oracle USA

20. XMLTable Statement
Original source, with permission, by Mark D Drake, Senior Product Manager, Oracle USA

21. XMLTable Statement
Original source, with permission, by Mark D Drake, Senior Product Manager, Oracle USA

22. XMLTable Statement
Original source, with permission, by Mark D Drake, Senior Product Manager, Oracle USA

23. XMLTable Statement
Original source, with permission, by Mark D Drake, Senior Product Manager, Oracle USA

24. Demo

26. Version Control
• APEX has no files – at least, not a lot
• APEXExport Utility
• Export from Builder
• Export from SQL Developer
Version Control for APEX isn’t that
different from PL/SQL !

27. Version Control
• apex_util.export_application
• apex_util.export_application_page
• apex_util.export_application_component
Issues :
• undocumented and unsupported
• USER instead of CURRENT_USER (4.1?)
• Developed for SQL Developer/Plus

28. Version Control
• Export functions of wwv_flow_gen_api2
• Using wwv_flow_css_repository
• Using wwv_flow_html_repository
• Used in the Export utilities of the builder
Issues :
• Even more undocumented and unsupported

29. Demo

30. Buy This Book

31. Conclusions
• APEX / XMLDB
Extreme Powerful Combination
• Functionality
APEX Powerful Database Driven Mature
Web Development Environment
XMLDB Versioning / Security Build-in
Easy PL/SQL based Automation Possible

32. Questions

33. Thank you
34

34. Contribute !

35. Contact
Logica | Meander 901 P.O. Box 7015 | 6801 HA Arnhem | The Netherlands | www.logica.com
Contact: Roel Hartman - Lead Technical Architect Oracle: +31 (0) 26 3765 000 M: +31 (0) 6 2954 3729 E: roel.hartman@logica.com
AMIS Services BV | Edisonbaan 15 P.O. Box 24 | 3439 MN Nieuwegein | The Netherlands | www.amis.nl
Contact: Marco Gralike – Principal Database Consultant: +31 (0) 30 6016000 M: +31 (0) 6 29042385 E: marco.gralike@amis.nl