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<=

Operator Description

The <= operator is used for comparison operations. When the <= operation value on the left is less than or equal to the <= operation on the right is true.

Grammar Structure

> SELECT x <= y;

Example

mysql> SELECT 2 <= 2;
+---------+
| 2 <= 2 |
+---------+
| true |
+---------+
1 row in set (0.00 sec)

create table t1 (spID smallint,userID bigint,score int);
insert into t1 values ​​(1,1,1);
insert into t1 values ​​(2,2,2);
insert into t1 values ​​(2,1,4);
insert into t1 values ​​(3,3,3);
insert into t1 values ​​(1,1,5);
insert into t1 values ​​(4,6,10);
insert into t1 values ​​(5,11,99);

mysql> select userID, score, spID from t1 where userID<=score/spID;
+----------+-------+
| userid | score | spid |
+----------+-------+
| 1 | 1 | 1 |
| 1 | 4 | 2 |
| 1 | 5 | 1 |
| 11 | 99 | 5 |
+----------+-------+
4 rows in set (0.00 sec)