Davide Mauri is back with Lara Rubbelke to discuss columnstore indexes. In a typical relational database data is stored per row. This means that all row columns are saved together, which is great in all those cases where you want to retrieve all the information related to a specific row. But what if you want to have all the data stored in a subset of columns but for all the rows? That would be complex and slow—unless data was saved per-column instead of per-row. That's exactly what columnstore indexes in Azure SQL Database enables you to do. Chapters 00:00 - Introduction 01:00 - Columnstore overview 07:00 - Demo: index creation 10:14 - Demo: querying with columnstore 13:53 - Demo: batch mode with LAG operator 15:00 - Wrap-up Recommended resources Columnstore indexes: Overview Azure SQL Database Create a Pay-as-You-Go account (Azure) Create a free account (Azure) Connect Lara Rubbelke | Twitter: @SQLGal Davide Mauri | Twitter: @MauriDB Azure Friday | Twitter: @AzureFriday