sql case
-- NOTE: this is for SQL-Oracle specifically
/*
NB: Please like Mingles444 post, I derived this from him/her
*/
-- syntax: (Retrieved from grepper:Mingles444)
CASE
WHEN condition1 THEN result1
WHEN condition2 THEN result2
WHEN conditionN THEN resultN
ELSE result
END
-- example:
SELECT
CASE
WHEN (1+6 = 6) THEN 'A'
WHEN (1+6 = 7) THEN 'B'
WHEN (1+6 = 8) THEN 'C'
ELSE 'D'
END
FROM DUAL;
-- OUTPUT: Bsql 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;how to write if case in select query in select statement
SELECT player_name,
CASE WHEN year = 'FR' AND position = 'WR' THEN 'frosh_wr'
ELSE NULL END AS sample_case_statement
FROM benn.college_football_playersCopyright © 2021 Codeinu
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