Just trying out PostgreSQL for the first time, coming from MySQL. In our Rails application we have a couple of locations with SQL like so:
SELECT * FROM `currency_codes` ORDER BY FIELD(code, 'GBP', 'EUR', 'BBD', 'AUD', 'CAD', 'USD') DESC, name ASC
It didn’t take long to discover that this is not supported/allowed in PostgreSQL.
Does anyone know how to simulate this behaviour in PostgreSQL or do we have to pull sorting out into the code?
Ah, gahooa was so close:
SELECT * FROM currency_codes ORDER BY CASE WHEN code='USD' THEN 1 WHEN code='CAD' THEN 2 WHEN code='AUD' THEN 3 WHEN code='BBD' THEN 4 WHEN code='EUR' THEN 5 WHEN code='GBP' THEN 6 ELSE 7 END,name;