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IPV6_STRING_TO_NUM_OR_NULL

IPV6_STRING_TO_NUM_OR_NULL​

IPV6_STRING_TO_NUM_OR_NULL

Description​

Syntax​

VARCHAR IPV6_STRING_TO_NUM_OR_NULL(VARCHAR ipv6_string)

VARCHAR INET6_ATON(VARCHAR ipv6_string)

The reverse function of IPv6NumToString, it takes an IP address String and returns an IPv6 address in binary format. If the input string contains a valid IPv4 address, returns its IPv6 equivalent.

Notice​

If an illegal IP address is entered, NULL is returned. This function has an alias INET6_ATON.

Example​

mysql> select hex(ipv6_string_to_num_or_null('1111::ffff'));
+-----------------------------------------------+
| hex(ipv6_string_to_num_or_null('1111::ffff')) |
+-----------------------------------------------+
| 1111000000000000000000000000FFFF |
+-----------------------------------------------+
1 row in set (0.01 sec)

mysql> select hex(ipv6_string_to_num_or_null('192.168.0.1'));
+------------------------------------------------+
| hex(ipv6_string_to_num_or_null('192.168.0.1')) |
+------------------------------------------------+
| 00000000000000000000FFFFC0A80001 |
+------------------------------------------------+
1 row in set (0.02 sec)

mysql> select hex(ipv6_string_to_num_or_null('notaaddress'));
+------------------------------------------------+
| hex(ipv6_string_to_num_or_null('notaaddress')) |
+------------------------------------------------+
| NULL |
+------------------------------------------------+
1 row in set (0.02 sec)

Keywords​

IPV6_STRING_TO_NUM_OR_NULL, INET6_ATON, IP