Fig. 2
From: Efficient storage of heterogeneous geospatial data in spatial databases

Illustration of the table-based layout. Each dataset has its own table, with each attribute as a separate column. The table name is referenced in the metadata-table
From: Efficient storage of heterogeneous geospatial data in spatial databases
Illustration of the table-based layout. Each dataset has its own table, with each attribute as a separate column. The table name is referenced in the metadata-table