I saw this tweet on twitter.
He’s making a database,
He’s filtering twice
SELECT * FROM customers WHERE behaviour = Nice
Santa Clause is Coming to town.
This started me thinking surely in a normalized database structure behaviour wouldn’t be stored in the customer table, so I propose the following change.
He’s making a database,
He’s filtering twice
SELECT * FROM customers WHERE EXISTS (select * from behaviour where behaviour.CustomerId = customers.Id and behaviour.Type = Nice)
Santa Clause is Coming to town.
Happy Christmas everyone, hope you all have restful holidays.
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