Learn More





DNN Community Blog

The Community Blog is a personal opinion of community members and by no means the official standpoint of DNN Corp or DNN Platform. This is a place to express personal thoughts about DNNPlatform, the community and its ecosystem. Do you have useful information that you would like to share with the DNN Community in a featured article or blog? If so, please contact .

The use of the Community Blog is covered by our Community Blog Guidelines - please read before commenting or posting.

Proprietary Dependence

One of the goals of the DotNetNuke project is to architect a solution in such a way that it minimizes its dependency on proprietary technologies ( the .NET Framework is obviously an exception to this rule ). And the Database Access Layer Abstraction project will certainly help improve our decoupled goals - removing the dependency from MS SQL Server and allowing the application to run an a variety of databases.

An interesting item which came up early in the DAL project involved the GetPortalSettings stored procedure. This stored procedure is the most frequently called data access routine in the application and uses a batch query to return multiple result sets in a single call. This technique provides a performance benefit as it requires less round trips to the database than making each database call individually. However it causes problems when you try to deal with more limited database engines like Access where batch queries are not supported.

The options were to override the GetPortalSettings method in the Access version to perform four individual database queries and then package them into a single multi-resultset package. But because I am still using DataReaders to pass the data, how do you dynamically create a DataReader stream? Not finding an answer, I thought maybe I should use a DataSet as the return value since it can be disconnected and contains methods for dynamic manipulation. But DataSets are more demanding on server resources than DataReaders, so I would take a performance hit and it would not be consistent with the data access strategy in the rest of the application.

Ultimately I decided ( for better or for worse ) to break the GetPortalSettings method into four distinct queries. The reason? To avoid the dependency on the multi-resultset concept and allow for simpler implementation on other database platforms. The next step is implementing some intelligent caching to offset the performance hit associated to this design decision.


There are currently no comments, be the first to post one.

Comment Form

Only registered users may post comments.


2sic Daniel Mettler (124)
Aderson Oliveira (15)
Alec Whittington (11)
Alex Shirley (10)
Andrew Nurse (30)
Anthony Glenwright (5)
Antonio Chagoury (28)
Ash Prasad (21)
Ben Schmidt (1)
Benjamin Hermann (25)
Benoit Sarton (9)
Beth Firebaugh (12)
Bill Walker (36)
Bob Kruger (5)
Brian Dukes (2)
Brice Snow (1)
Bruce Chapman (20)
Bryan Andrews (1)
cathal connolly (55)
Charles Nurse (163)
Chris Hammond (203)
Chris Paterra (55)
Clinton Patterson (28)
Cuong Dang (21)
Daniel Bartholomew (2)
Dave Buckner (2)
David Poindexter (3)
David Rodriguez (2)
Doug Howell (11)
Erik van Ballegoij (30)
Ernst Peter Tamminga (74)
Geoff Barlow (6)
Gifford Watkins (3)
Gilles Le Pigocher (3)
Ian Robinson (7)
Israel Martinez (17)
Jan Blomquist (2)
Jan Jonas (3)
Jaspreet Bhatia (1)
Jenni Merrifield (6)
Joe Brinkman (269)
John Mitchell (1)
Jon Henning (14)
Jonathan Sheely (4)
Jordan Coopersmith (1)
Joseph Craig (2)
Kan Ma (1)
Keivan Beigi (3)
Ken Grierson (10)
Kevin Schreiner (6)
Leigh Pointer (31)
Lorraine Young (60)
Malik Khan (1)
Matthias Schlomann (15)
Mauricio Márquez (5)
Michael Doxsey (7)
Michael Tobisch (3)
Michael Washington (202)
Mike Horton (19)
Mitchel Sellers (28)
Nathan Rover (3)
Navin V Nagiah (14)
Néstor Sánchez (31)
Nik Kalyani (14)
Peter Donker (52)
Philip Beadle (135)
Philipp Becker (4)
Richard Dumas (22)
Robert J Collins (5)
Roger Selwyn (8)
Ruben Lopez (1)
Ryan Martinez (1)
Salar Golestanian (4)
Sanjay Mehrotra (9)
Scott McCulloch (1)
Scott S (11)
Scott Wilkinson (3)
Scott Willhite (97)
Sebastian Leupold (80)
Shaun Walker (237)
Shawn Mehaffie (17)
Stefan Cullmann (12)
Stefan Kamphuis (12)
Steve Fabian (31)
Timo Breumelhof (24)
Tony Henrich (3)
Torsten Weggen (2)
Vicenç Masanas (27)
Vincent Nguyen (3)
Vitaly Kozadayev (6)
Will Morgenweck (37)
Will Strohl (163)
William Severance (5)
Try Evoq
For Free
Start Free Trial
a Demo
See Evoq Live
Need More Information?