\=

Description

The = operator returns true only if the left-hand operand is equal to the right-hand operand.

Syntax

1. > SELECT x = y;

Examples

1. mysql> SELECT 2 = 2;
2. +-------+
3. | 2 = 2 |
4. +-------+
5. | true  |
6. +-------+
7. 1 row in set (0.01 sec)

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

10. mysql> select userID,spID,score from t1 where userID=spID and userID=score;
11. +--------+------+-------+
12. | userid | spid | score |
13. +--------+------+-------+
14. |      1 |    1 |     1 |
15. |      2 |    2 |     2 |
16. |      3 |    3 |     3 |
17. +--------+------+-------+
18. 3 rows in set (0.00 sec)