5.7 OR example

gistfile1.txt

mysql [localhost] {msandbox} (test) > SELECT version();
+---------------+
| version()     |
+---------------+
| 5.7.5-m15-log |
+---------------+
1 row in set (0.00 sec)

mysql [localhost] {msandbox} (test) > SHOW VARIABLES LIKE 'sql_mode';
+---------------+---------------------------------------------------------------+
| Variable_name | Value                                                         |
+---------------+---------------------------------------------------------------+
| sql_mode      | ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ENGINE_SUBSTITUTION |
+---------------+---------------------------------------------------------------+
1 row in set (0.00 sec)

mysql [localhost] {msandbox} (test) > CREATE TABLE book (id INT NOT NULL PRIMARY KEY auto_increment);
Query OK, 0 rows affected (0.03 sec)

mysql [localhost] {msandbox} (test) > INSERT INTO book VALUES (NULL),(NULL),(NULL),(NULL);
Query OK, 4 rows affected (0.02 sec)
Records: 4  Duplicates: 0  Warnings: 0

mysql [localhost] {msandbox} (test) > SELECT * FROM book WHERE id = 1 OR 2;
+----+
| id |
+----+
|  1 |
|  2 |
|  3 |
|  4 |
+----+
4 rows in set (0.01 sec)

mysql [localhost] {msandbox} (test) > DELETE FROM book WHERE id = 1 OR 2;
Query OK, 4 rows affected (0.01 sec)