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explain "ETL"

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Ed Chalstrey 2022-04-01 11:23:24 +01:00
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etl/README.md
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# Extract, transform and load
The scripts in this directory are used to extract, transform and load (ETL) the core datasets for Colouring London. This README acts as a guide for setting up the Colouring London database with these datasets and updating it.
# Contents
- :arrow_down: [Downloading Ordnance Survey data](#arrow_down-downloading-ordnance-survey-data)
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# :arrow_down: Downloading Ordnance Survey data
The scripts in this directory are used to extract, transform and load (ETL) the core datasets
for Colouring London:
Building geometries, sourced from Ordnance Survey (OS) MasterMap (Topography Layer)
To get the required datasets, you'll need to complete the following steps:
The building geometries are sourced from Ordnance Survey (OS) MasterMap (Topography Layer). To get the required datasets, you'll need to complete the following steps:
1. Sign up for the Ordnance Survey [Data Exploration License](https://www.ordnancesurvey.co.uk/business-government/licensing-agreements/data-exploration-sign-up). You should receive an e-mail with a link to log in to the platform (this could take up to a week).
2. Navigate to https://orders.ordnancesurvey.co.uk/orders and click the button for: ✏️ Order. From here you should be able to click another button to add a product.