How to track history of db tables that include many-to-many mapping tables?

Posted by chacmool on Stack Overflow See other posts from Stack Overflow or by chacmool
Published on 2010-04-06T21:36:19Z Indexed on 2010/04/07 4:03 UTC
Read the original article Hit count: 301

Filed under:

database-design

|

versioning

I have seen several questions here on tracking db history, but can't seem to find one that matches our situation. We need to track the history of several tables, some of which are many-to-many linking tables. Eg say we have this schema:

EntityA
id
name

EntityB
id
name

ABLink
A_id
B_id

So, tracking changes to EntityA or EntityB seems pretty straightforward. We can keep a log table with the same columns plus a date stamp and user. But what about the links? How do we maintain the set of links that are valid for a given version of the data? We need to be able to recreate a history of the data showing changes in chronological order. So if a link added or deleted, we indicate that. Etc.

© Stack Overflow or respective owner

Related posts about database-design

(Database Design - products attributes): What is better option for product attribute database design

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I new in database design. What is better option for product attribute database design for cms?(Please suggest other options also). option 1: 1 table products{ id product_name color price attribute_name1 attribute_value1 attribute_name2 attribute_value2 attribute_name3 attribute_value3 } option… >>> More
Book Review: Pro SQL Server 2008 Relational Database Design and Implementation

as seen on SQL Blog - Search for 'SQL Blog'
Investing in proper database design is a very efficient way to cut maintenance costs. If we expect a system to last, we need to make sure it has a good solid foundation - high quality database design. Surely we can and sometimes do cut corners and save on database design to get things done faster… >>> More
Advice on database design / SQL for retrieving data with chronological order

as seen on Stack Overflow - Search for 'Stack Overflow'
I am creating a database that will help keep track of which employees have been on a certain training course. I would like to get some guidance on the best way to design the database. Specifically, each employee must attend the training course each year and my database needs to keep a history of… >>> More
Fiscal year handling strategies in database design

as seen on Stack Overflow - Search for 'Stack Overflow'
By fiscal year I mean all the data in the database (in all tables) that occurred in the particular year. Lets say that we are building an application that allows user to choose from different years. What way of implementing this would you prefer, and why: Separate fiscal year data based on multiple… >>> More
Database design for summarized data

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a new table I'm going to add to a bunch of other summarized data, basically to take some of the load off by calculating weekly avgs. My question is whether I would be better off with one model over the other. One model with days of the week as a column with an additional column for price… >>> More

Related posts about versioning

Web Site Performance and Assembly Versioning – Part 3 Versioning Combined Files Using Mercurial

as seen on ASP.net Weblogs - Search for 'ASP.net Weblogs'
Minification and Concatination of JavaScript and CSS Files Versioning Combined Files Using Subversion Versioning Combined Files Using Mercurial – this post I have worked on a project recently where there was a need to version the system (library dll, css and javascript files) by date and… >>> More
Web Site Performance and Assembly Versioning – Part 2 Versioning Combined Files Using Subversion

as seen on ASP.net Weblogs - Search for 'ASP.net Weblogs'
Ok so it took a while to post this second part. Many apologies, we had a big roll out of a new platform at work and many things had to get sidelined. So this is the second part in a short series of website performance and using versioning to help improve it. Minification and Concatination of JavaScript… >>> More
Sharepoint webpart-page versioning

as seen on Stack Overflow - Search for 'Stack Overflow'
On webpart-pages it is possible modify the contained webparts over the Web by using Site Actions-Edit page. Is there a possibility to view the version history of such a page? >>> More
jboss envers for versioning?

as seen on Stack Overflow - Search for 'Stack Overflow'
I have entities that required versioning support and from time to time, i will need to retrieve old version of the entity . should i just use options available 1. http://stackoverflow.com/questions/762405/database-data-versioning 2. jboss envers (can this be used on any web server,tomcat,jetty… >>> More
UPK Content State

as seen on Oracle Blogs - Search for 'Oracle Blogs'
State is an editable property for communicating the status of a document in the UPK library. This is particularly helpful when working with other authors in a development team. Authors can assign a state to any document using the values that are defined in the master list. The default master list… >>> More