Variants of CASE.WHEN with no ELSE clause : CASE « Function « SQL / MySQL






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Variants of CASE.WHEN with no ELSE clause

      
mysql>
mysql> SELECT CASE "ferret" WHEN "cat" THEN "meow" WHEN "dog" THEN "woof" END;
+-----------------------------------------------------------------+
| CASE "ferret" WHEN "cat" THEN "meow" WHEN "dog" THEN "woof" END |
+-----------------------------------------------------------------+
| NULL                                                            |
+-----------------------------------------------------------------+
1 row in set (0.00 sec)

mysql>
mysql> SELECT CASE WHEN 4=5 THEN "large value of 4" END AS "results";
+---------+
| results |
+---------+
| NULL    |
+---------+
1 row in set (0.00 sec)








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