Syntax
------ 
>=
 
Description
----------- 
Greater than or equal operator. Evaluates both SQL
expressions and returns 1 if the left value is greater than
or equal to the right value and 0 if it is not, or NULL if
either expression is NULL. If the expressions return
different data types, (for instance, a number and a string),
performs type conversion.
 
When used in row comparisons these two queries return the
same results:
 
SELECT (t1.a, t1.b) >= (t2.x, t2.y) 
FROM t1 INNER JOIN t2;
 
SELECT (t1.a > t2.x) OR ((t1.a = t2.x) AND (t1.b >= t2.y))
FROM t1 INNER JOIN t2;
 
Examples
-------- 
SELECT 2 >= 2;
 
+--------+
| 2 >= 2 |
+--------+
| 1 |
+--------+
 
SELECT 'A' >= 'a';
 
+------------+
| 'A' >= 'a' |
+------------+
| 1 |
+------------+
 

 
 
 
 
 
 
 

URL: https://mariadb.com/kb/en/greater-than-or-equal/