INET6_ATON

SinceVersion dev

inet6_aton

description

Syntax

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

该函数为ipv6_string_to_num_or_null的别称。如果输入字符串不是有效的 IPv4 地址或者NULL，将返回NULL，和MySQL一样

example

  1. mysql> select hex(inet6_aton('1111::ffff'));
  2. +-----------------------------------------------+
  3. | hex(ipv6_string_to_num_or_null('1111::ffff')) |
  4. +-----------------------------------------------+
  5. | 1111000000000000000000000000FFFF              |
  6. +-----------------------------------------------+
  7. 1 row in set (0.02 sec)
  9. mysql> select hex(inet6_aton('192.168.0.1'));
  10. +------------------------------------------------+
  11. | hex(ipv6_string_to_num_or_null('192.168.0.1')) |
  12. +------------------------------------------------+
  13. | 00000000000000000000FFFFC0A80001               |
  14. +------------------------------------------------+
  15. 1 row in set (0.02 sec)
  17. mysql> select hex(inet6_aton('notaaddress'));
  18. +--------------------------------------------------+
  19. | hex(ipv6_string_to_num_or_null('notaaddress'))   |
  20. +--------------------------------------------------+
  21. | NULL                                             |
  22. +--------------------------------------------------+
  23. 1 row in set (0.02 sec)

keywords

INET6_ATON, IP