Product supply
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The AddressBase Core product is available as a Comma-Separated Value (CSV) file or GeoPackage (GPKG) via a URL download.
The primary supply mechanism of AddressBase Core will be a full Great Britain Set. A single file will be provided containing all records with headers already included (CSV) or the structure already defined (GeoPackage). This supply is known as a Managed Great Britain Set (MGBS).
All customers are also able to take a Full Supply or Change-only update (COU).
COU is a supply of features which have been created (inserted), changed (updated) or deleted in the product since their last supply. Any feature which has not undergone one of the above changes since a customer’s last supply will not be supplied as part of a COU. COU will be supplied on a weekly basis. (Please note COUs are only available with the CSV file format).
The coverage of the product is Great Britain, so it includes England, Scotland and Wales.
AddressBase Core is provided as one file, regardless of format chosen. The file sizes for Great Britain are approximately:
CSV 2Gb
GeoPackage 12Gb
Comma-separated value (CSV) files are a delimited text file that use commas or other characters to separate individual elements of a feature. It is used to store data, often in the form of a table. These tables can be freely loaded into databases and programs allowing for the easy loading and updating of data holdings.
The supply of AddressBase products in the CSV format means:
There will be one record per line in each file.
Fields will be separated by commas.
Character strings will be encapsulated with double quotation marks.
No comma will be placed at the end of each row in the file.
Records will be terminated by Carriage Return/Line Feed.
For AddressBase Core the first line of the CSV file will be the Header row. Other AddressBase products have a separate Header file that is available on the product support page and can be combined with the data to give a structure tabular view. Instructions to do this are provided in the relevant Getting Started Guides on the Product Support pages.
GeoPackage (GPKG) is an open, standards-based data format as defined by the Open Geospatial Consortium (OGC). It is designed to be a lightweight format that can contain large amounts of varied and complex data in a single, easy-to-distribute and ready-to-use file. Please be advised that older versions of GIS software may need updating before being able to display and interact with GeoPackage files.
GeoPackage offers the following benefits:
The single file is easy to transfer and offers the end-user a rich experience.
Attribute names are not limited in length making it user-friendly.
No file size limit so lots of data can be easily accommodated.
Supports raster, vector and database formats making it a highly versatile solution.
It is an OGC Standard.
In most cases, it is a Plug and Play format.