IPV6_STRING_TO_NUM_OR_NULL

Description

Syntax

VARCHAR IPV6_STRING_TO_NUM_OR_NULL(VARCHAR ipv6_string)

VARCHAR INET6_ATON(VARCHAR ipv6_string)

IPv6NumToString 的反向函数，它接受一个 IP 地址字符串并返回二进制格式的 IPv6 地址。如果输入字符串包含有效的 IPv4 地址，则返回其等效的 IPv6 地址。

Notice

如果输入非法的 IP 地址，会返回 NULL。该函数有一个别名为 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

IPV6_STRING_TO_NUM_OR_NULL​

Description​

Syntax​

Notice​

Example​

Keywords​