Math Numeric Functions MySQL Tutorial

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  4. CRC32(expr) returns a cyclic redundancy check value and returns a 32-bit unsigned value
The result is NULL if the argument is NULL.

mysql> SELECT CRC32('rntsoft.com');
+---------------------+
| CRC32('rntsoft.com') |
+---------------------+
|            91442478 |
+---------------------+
1 row in set (0.00 sec)
mysql>