slq case usage code example

Example 1: 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: B

Example 2: 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_players