Version History of Combined Natural Drainage Areas (Sweden)

The 'History' table is an extensive resource, part of a broader dataset collection. It holds a wealth of information, primarily chronicling the version history of its base table rows. The table serves as an archive, keeping track of changes to each row over time. To do this, it employs a combination of two specific columns, '_start_date' and '_row_number', which together form a unique identifier for each row in the table. The '_start_date' column marks the date when the row was extracted from the data source, while the '_row_number' shows the position of the row in the raw data. The '_end_date' column indicates when a new version of the row was extracted. If this column is null, it signifies that the row is the current version.

The table also includes geographical data, with several columns dedicated to this purpose. These 'geom_' columns contain geographic coordinates and other geospatial information, which align with the WGS 84 coordinate reference system. The order of these coordinates is longitude first, followed by latitude.

The table's data is sourced from the 'Stockholms stad' website, based in Sweden. This data can be utilized in numerous ways. For instance, with its version history tracking capability, the table can provide valuable insights into changes over time. The geographic information can be harnessed for spatial analytics, revealing patterns, trends, and relationships that may not be immediately apparent in raw, numerical data. In the hands of data analysts, this table can yield a rich trove of discoveries, shedding light on the past, present, and potentially, the future.