Historical Version Record of Base Table Entries

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The table in question belongs to a dataset collection that is part of a version history system. This system includes a base table and, in this case, a history table that tracks the changes made to the rows in the base table over time. The distinction of this table is that it tracks the version history of its base table rows, providing a unique perspective on the data.

This table contains several key components. Firstly, it has a column that holds the extraction date for each row, indicating when the data was sourced. Another column tracks the date when a new version of that row was extracted. When the latter column shows a null value, it indicates that this version of the row is the most recent one.

Unique identifiers for each row are formed through a combination of the extraction date and the row number from the original data source. This method ensures that each row in the history table is distinct and allows for accurate tracking and referencing of data changes over time.

The table also contains geographic information transformed from a shapefile format into the final geographic format. This geographic information could be points, lines, or polygons, offering a rich variety of geographic features and their attributes.

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

In terms of data analytics, this table offers several possibilities. For instance, the version history could be used to analyze trends in the data over time, to track changes in geographic features, or to monitor the accuracy of data extraction processes. Additionally, the geographic information could be utilized in spatial analysis or to create detailed map visualizations.

Field Descriptions

Name Data type Description
_start_datedateThis column contains the date when the row was extracted from the data source. It forms a unique identifier in combination with the '_row_number' column for each row in this version history table.
_end_datedateThis column contains the 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_numberlongThis column contains the number of the row in the raw data extracted from the data source. It forms a unique identifier in combination with the '_start_date' column for each row in this version history table.
OBJECTIDlongUnique identifier of the object in the table.
IDstringIdentifier of the object in the original data source from 'Lantmäteriet' (The Land Survey of Sweden).
CODE_12stringA code representing specific category or type associated with the row.
Area_HadoubleThe area of the object, measured in hectares.
RemarkstringAny additional comments or remarks about the row.
Shape_LengdoubleThe length of the shape of the object.
Shape_AreadoubleThe area of the shape of the object.
geom_geojsonstringThe geometry of the object in GeoJSON format.
geom_geotextstringThe geometry of the object, represented as text.
geom_typestringThe type of the geometry of the object.
geom_centroidstringThe centroid of the geometry of the object.
geom_center_xdoubleThe x-coordinate of the center of the geometry of the object.
geom_center_ydoubleThe y-coordinate of the center of the geometry of the object.

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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
Id3bfc2425-8755-4dbd-94b7-e1a3e6d32eda
Package idde8a2b72-39b6-45ce-aea7-5d1acc49ae35
Position5
Revision id188604c5-7fbd-4a30-88d8-458e937642a6
Stateactive
Tableostergotland_zip__clc12_64f_no__history