Version History of Land Features in Vasterbotten Dataset Collection

The 'clc12_70h_nv__history' table, part of the 'vasterbotten' dataset collection, is a history table that records version changes of its base table rows. It is primarily designed to track the evolution of data over time, with each row in the table representing a unique version of a base table row. This is facilitated by two additional columns that record the start and end dates of each version. The start date indicates when the version was extracted from the data source, while the end date marks when a new version was extracted. If the end date is null, this signifies that the version is the most current.

The table also includes a row number that, in combination with the start date, uniquely identifies each row in the table. The raw data for these rows is sourced from the Lantmäteriet (The National Land Survey) website in Sweden.

Geographic information is a vital part of this table, initially sourced in the shapefile format. This simple, nontopological format is commonly used for storing geographic feature data. The data in this dataset has been transformed from this initial format into a final geographic format that can encompass points, lines, or polygons.

The 'clc12_70h_nv__history' table is a valuable resource for a range of data analytics applications. For example, it can be used to track the evolution of geographic features over time, providing crucial insights into environmental change. It can also be used to verify data integrity by comparing different versions of the same row. Furthermore, the geographic data can be used in conjunction with other data to conduct spatial analysis, such as identifying patterns or anomalies in the distribution of geographic features.