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Reporting tool and data analytics tools for creating reports and dashboards in ASP.NET, ASP.NET MVC, .NET Core, Blazor, Angular, PHP, Python, WPF, JavaScript, and Java applications.
If you need to create a cross-tab with Periods and Buildings there should be a relation between Data Source with Periods and Data Source with Buildings.
There should be somthing like PeriodID fields in Period and Building. Then it's possible to add a relation.
Other way is to create a SQL query that will request all necessary data for Cross-tab in one Data Source.