IPV6_STRING_TO_NUM_OR_NULL

SinceVersion dev

IPV6_STRING_TO_NUM_OR_NULL

description

Syntax

VARCHAR IPV6_STRING_TO_NUM_OR_NULL(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

will return NULL if the input string is not a valid IP address

example

  1. mysql> select hex(ipv6_string_to_num_or_null('1111::ffff'));
  2. +-----------------------------------------------+
  3. | hex(ipv6_string_to_num_or_null('1111::ffff')) |
  4. +-----------------------------------------------+
  5. | 1111000000000000000000000000FFFF              |
  6. +-----------------------------------------------+
  7. 1 row in set (0.01 sec)
  9. mysql> select hex(ipv6_string_to_num_or_null('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(ipv6_string_to_num_or_null('notaaddress'));
  18. +------------------------------------------------+
  19. | hex(ipv6_string_to_num_or_null('notaaddress')) |
  20. +------------------------------------------------+
  21. | NULL                                           |
  22. +------------------------------------------------+
  23. 1 row in set (0.02 sec)

keywords

IPV6_STRING_TO_NUM_OR_NULL, IP