Historical Version Records of Varmland Collection

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The table under consideration is a history table, which means it contains the version history of its base table rows. This is indicated by the presence of two unique columns: one capturing the date when a row is extracted from the data source, and another recording the date when a new version of the same row is sourced. If a row is the most recent version, the latter column will have a null value.

Another feature of this table is its unique identifier, which is a combination of the date of extraction and the row number from the raw data.

The table also contains geographical information, originally in shapefile format, which has been subsequently transformed into a final geographical format. This information can represent geographic features as points, lines, or polygons.

This table is sourced from the website of 'Lantmäteriet' (The Land Survey) in Sweden.

The data from this table could be utilized in various ways in data analytics. For example, it could be used to track changes in geographic features over time, offering insights into trends and patterns. It could also support predictive modeling by providing historical data for training machine learning algorithms. The unique identifier could be leveraged to integrate this data with other datasets, thereby enriching the analysis with additional dimensions.

Field Descriptions

Name Data type Description
_start_datedateThe date when the row was extracted from the data source. Together with the '_row_number' column, it uniquely identifies each row in this version history table.
_end_datedateThe date when a new version of the row was extracted from the data source. If the value is null, it indicates that the row is the most recent version.
_row_numberlongThe number of the row in the raw data extracted from the data source. Together with the '_start_date' column, it uniquely identifies each row in this version history table.
OBJECTIDlongA unique identifier for each object in the table.
IDstringAn identifier for each entry in the table.
CODE_12stringA code associated with each entry in the table.
Area_HadoubleThe area of the geographical feature represented by the entry, measured in hectares.
RemarkstringAny additional comments or remarks related to the entry.
Shape_LengdoubleThe length of the shape representing the geographical feature, in the unit used by the data source.
Shape_AreadoubleThe area of the shape representing the geographical feature, in the unit used by the data source.
geom_geojsonstringThe geometry of the geographical feature, represented in GeoJSON format.
geom_geotextstringThe geometry of the geographical feature, represented as text.
geom_typestringThe type of geometry used to represent the geographical feature.
geom_centroidstringThe centroid of the geographical feature, represented in the coordinate system used by the data source.
geom_center_xdoubleThe X-coordinate of the center of the geographical feature, in the coordinate system used by the data source.
geom_center_ydoubleThe Y-coordinate of the center of the geographical feature, in the coordinate system used by the data source.

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Additional Information

Last updated August 27, 2024
Created August 27, 2024
License No License Provided
Geographic coverage
Geographic granularity
Temporal coverage from
Temporal coverage to
Temporal coverage to
Adaptershapefile
Countryse
Databasese_lantmateriet
Extract date2024-08-26
Idde530dc3-819c-426b-97d4-f6ac1779d73e
Package idbdfc37ab-2d87-436a-ba7b-6312fe00922e
Position11
Revision ida7ad9468-4e01-4b60-98f1-dfa1fa46456f
Stateactive
Tablevarmland_zip__clc12_65e_sv__history