The Ultimate Guide to High Availability with MariaDB
This is a read-only copy of the MariaDB Knowledgebase generated on 2024-11-14. For the latest, interactive version please visit https://mariadb.com/kb/.

XOR

Sintassi

XOR

Spiegazione

XOR logico. Restituisce NULL se uno o più operandi sono NULL. Negli altri casi, restituisce 1 se un numero dispari di operandi è diverso da zero, altrimenti restituisce zero.

Esempi

MariaDB [(none)]> SELECT 1 XOR 1;
+---------+
| 1 XOR 1 |
+---------+
|       0 |
+---------+
1 row in set (0.00 sec)

MariaDB [(none)]> SELECT 1 XOR 0;
+---------+
| 1 XOR 0 |
+---------+
|       1 |
+---------+
1 row in set (0.00 sec)

MariaDB [(none)]> SELECT 1 XOR NULL;
+------------+
| 1 XOR NULL |
+------------+
|       NULL |
+------------+
1 row in set (0.00 sec)

MariaDB [(none)]> SELECT 1 XOR 1 XOR 1;
+---------------+
| 1 XOR 1 XOR 1 |
+---------------+
|             1 |
+---------------+
1 row in set (0.00 sec)

MariaDB [(none)]>
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