To ensure powerful and dynamic analytics, those responsible for the reports’ creation (operators or managers) should be provided with a toolset for this procedure. For example, let’s imagine there is a necessity to connect the data regarding sales with users’ geolocation. Both types of data will be presented as two different sources of data in the data warehouse. Thus, the query builder is required in this case to transform the request of the employee responsible for the report creation into further commands for the database.