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MySQL | XOR

Database
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MySQL
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Documentation
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Operators
schedule Mar 10, 2022
Last updated
local_offer MySQL
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MySQL's XOR operator returns 1 if an odd number of operands is nonzero or 0 if an even number of operands is nonzero. If either operand is NULL we return NULL.

Syntax

SELECT value1 XOR value2 XOR value3;

Examples

Odd nonzero operands

To check whether we have an odd number of nonzero operands:

SELECT 3 XOR 4 XOR 5;
+---------------+
| 3 XOR 4 XOR 5 |
+---------------+
| 1 |
+---------------+

As we have 3 non-zero operands, 1 is returned.

Even nonzero operands

To check whether we have an odd number of nonzero operands:

SELECT 3 XOR 4;
+---------+
| 3 XOR 4 |
+---------+
| 0 |
+---------+

As we have 2 nonzero operands, 0 is returned.

NULL operand

To check whether we have an odd number of nonzero operands:

SELECT 1 XOR NULL;
+------------+
| 1 XOR NULL |
+------------+
| NULL |
+------------+

As one of the operands is NULL, NULL is returned.

robocat
Published by Arthur Yanagisawa
Edited by 0 others
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