LEAST() returns NULL if any argument is NULL : LEAST « Comparison Functions Operators « MySQL Tutorial

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MySQL Tutorial » Comparison Functions Operators » LEAST

15. 11. 2. LEAST() returns NULL if any argument is NULL


mysql>

mysql> SELECT LEAST(2,NULL);

+---------------+

| LEAST(2,NULL) |

+---------------+

|          NULL |

+---------------+

1 row in set (0.00 sec)

15. 11. LEAST
	15. 11. 1.	LEAST(value1,value2,...) returns the smallest (minimum-valued) argument withing two or more arguments
	15. 11. 2.	LEAST() returns NULL if any argument is NULL
	15. 11. 3.	LEAST with float value
	15. 11. 4.	Using LEAST with string value
	15. 11. 5.	Use LEAST with data in a table

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