In the name of the resources: Aggregating data [EN]
Duration: 60 minutes
Track: Development (Application & Database)
The queries that are used for reports are usually the least efficient because you are dealing with huge amounts of data from tables sometimes joined many, many times. In this session we will go through good and bad examples of aggregating the data from your relational database. You will see tips on how to get good use of the indexes, how to lower the number of actual table queries and other tricks that will make your queries run faster.