Version History of Index Routes in SWEREF99 18 45 Coordinate System

The 'indexrutor_sweref_18_45__history' table is a historical archive, recording the version history of its base table rows. This table is part of the 'indexrutor_sweref99_18_45' dataset collection. The table hosts a variety of information, including key identifiers, the row extraction dates, and geographic data transformed from the shapefile format. Two unique identifiers define each row: the extraction date and the row number from the original data source. When a row is updated, the table logs the date of this new extraction, allowing for tracking of changes over time. If a row's end date is null, it signifies that the row is the current version. The geographical details in the dataset have been converted from the simple, non-topological shapefile format, which can represent geographical features as points, lines or polygons. This table is sourced from the website of 'Lantmäteriet' (The National Land Survey) in Sweden.

Data from this table can be used in various data analysis scenarios. For example, analysts can track changes in geographical features over time by looking at the update dates. The geographic data can also be used in spatial analytics to identify patterns or trends. Furthermore, the version history could assist in maintaining the quality of the data by identifying and correcting erroneous updates.