Historical Version Records of Regional Units 2022 (1:4 500 000)

The 'table__history' is an invaluable component of the 'tilastointialueet_seutukunta4500k_2022' dataset collection, sourced from the Finnish website 'Tilastokeskus' (Statistics Finland). This table is a history table, designed to store the version history of its base table rows. It offers a time-stamped record of each row, with unique identifiers created through a combination of '_start_date' and '_row_number'. The former indicates when the row was extracted, while the latter is the row's number in the raw data. If '_end_date' is null, it implies that the row is the most recent version.

The base table content, 'Seutukunnat 2022 (1:4 500 000)', translates to 'Subregions 2022 (1:4 500 000)', reflecting the focus on subregional data. The columns of this table include geographic information starting with 'geom_', which can be utilized for geospatial data analytics. The geographical coordinates are presented using the WGS 84 coordinate reference system, with the axis order being longitude first, followed by latitude.

The table provides key details about different subregions, such as 'Kotka-Hamina' and 'Pori', with unique identifiers ('gml_id') and names in different languages ('name', 'namn', 'nimi'). It also contains the year ('vuosi') of the data.

Such a table can be used in various data analytics applications. For instance, temporal analysis can be performed using the '_start_date' and '_end_date' to track changes in the data over time. Additionally, geospatial analysis can be carried out using the geographic information to determine patterns or trends across different subregions. The multilingual names also allow for cross-cultural studies or international presentations of the data.