Historical Versioning of Subregions 2017 (1:4 500 000)

The 'table__history' is a history table, sourced from 'Tilastokeskus' (Statistics Finland), providing a chronological record of the data extracted from its base table. It preserves the version history of each row in the base table, identified uniquely by a combination of the date the row was extracted and its row number. The table holds additional columns for start and end dates of each row version. If the end date column has a null value, it indicates the row is the most recently updated version.

The primary content of the table is geographic and demographic data corresponding to different regions in Finland. This includes names of the regions in multiple languages, and a variety of geospatial data in the form of polygons, centroids, and center coordinates. The geographic coordinates are presented using the WGS 84 coordinate reference system, with axis order longitude first, followed by latitude, enabling this data to be used for geospatial analytics.

In terms of data analytics, this historical table could serve multiple purposes. For instance, it could be used to track changes in geographic boundaries over time, or to analyze demographic shifts in different regions. Moreover, the geospatial data could be used in conjunction with other data to predict patterns or trends related to factors such as population density, land use, or environmental indicators. This can support decision-making in various sectors, such as urban planning, environmental conservation, or public policy.