# **<>,!=**

## **Operator Description**

The `<>, !=` operator returns `true` only if the left operand is not equal to the right operand.

## **Grammar Structure**

```sql
SELECT x <> y;
```

## **Example**

```text
mysql> SELECT 2 <> 2;
+---------+
| 2 != 2 |
+---------+
| false |
+---------+
1 row in set (0.01 sec)
```

```text
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,spID,score from t1 where userID=spID and userID<>score;
+-----------+-------+
| userid | spid | score |
+-----------+-------+
| 1 | 1 | 5 |
+-----------+-------+
1 row in set (0.00 sec)
```