Historical Version Record of Base Table Entries
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 |
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_start_date | date | This 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_date | date | This 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_number | long | This 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. |
OBJECTID | long | Unique identifier of the object in the table. |
ID | string | Identifier of the object in the original data source from 'Lantmäteriet' (The Land Survey of Sweden). |
CODE_12 | string | A code representing specific category or type associated with the row. |
Area_Ha | double | The area of the object, measured in hectares. |
Remark | string | Any additional comments or remarks about the row. |
Shape_Leng | double | The length of the shape of the object. |
Shape_Area | double | The area of the shape of the object. |
geom_geojson | string | The geometry of the object in GeoJSON format. |
geom_geotext | string | The geometry of the object, represented as text. |
geom_type | string | The type of the geometry of the object. |
geom_centroid | string | The centroid of the geometry of the object. |
geom_center_x | double | The x-coordinate of the center of the geometry of the object. |
geom_center_y | double | The y-coordinate of the center of the geometry of the object. |
No sample for this dataset
Additional Information
Last updated | August 27, 2024 |
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Created | August 27, 2024 |
License | No License Provided |
Geographic coverage | |
Geographic granularity | |
Temporal coverage from | |
Temporal coverage to | |
Temporal coverage to | |
Adapter | shapefile |
Country | se |
Database | se_lantmateriet |
Extract date | 2024-08-26 |
Id | 3bfc2425-8755-4dbd-94b7-e1a3e6d32eda |
Package id | de8a2b72-39b6-45ce-aea7-5d1acc49ae35 |
Position | 5 |
Revision id | 188604c5-7fbd-4a30-88d8-458e937642a6 |
State | active |
Table | ostergotland_zip__clc12_64f_no__history |