sql case
Change query output depending on conditions.
Example: Returns users and their subscriptions, along with a new column
called activity_levels that makes a judgement based on the number of
subscriptions.
SELECT first_name, surname, subscriptions
CASE WHEN subscriptions > 10 THEN 'Very active'
WHEN Quantity BETWEEN 3 AND 10 THEN 'Active'
ELSE 'Inactive'
END AS activity_levels
FROM users;Case in sql
SELECT OrderID, Quantity,
CASE
WHEN Quantity > 30
THEN 'The quantity is greater than 30'
WHEN Quantity = 30 THEN 'The
quantity is 30'
ELSE 'The quantity is under 30'
END AS QuantityText
FROM OrderDetails;sql case sttement with set
UPDATE dbo.TestStudents
SET LASTNAME = CASE
WHEN LASTNAME = 'AAA' THEN 'BBB'
WHEN LASTNAME = 'CCC' THEN 'DDD'
WHEN LASTNAME = 'EEE' THEN 'FFF'
ELSE LASTNAME
END
WHERE LASTNAME IN ('AAA', 'CCC', 'EEE')Copyright © 2021 Codeinu
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