Having data saved to database allows querying those data and so analyze them by features data are described by.
My horse racing database saves the following data: Eligibility, Going, Horse, Race, Racecourse, RaceType, Runner and RunnerData.
I created simple app to save above data every day automatically, the app is able to present odds/price movement as well.
At the end of my video I show how you can use visualize data queried from database in Sanddance web tool. You can see that from 628 races I have got saved in my database 436 (69.42%) races is won by favorites.