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davidclarance/stable_randomization_tsql.sql

Last active October 29, 2024 13:42
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stable_randomization_tsql.sql
WITH customers AS (
SELECT 'Customer1' AS customer_id UNION ALL
SELECT 'Customer2' AS customer_id UNION ALL
SELECT 'Customer3' AS customer_id UNION ALL
SELECT 'Customer4' AS customer_id
)
SELECT
c.customer_id,
CONVERT(BIGINT, SUBSTRING(HASHBYTES('MD5', c.customer_id), 1, 5)) % 100 AS assigned_bucket
FROM customers c;
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You can see the python version here: https://gist.github.com/davidclarance/daeafad5fc3e28e019950a12b0da01f5

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