The Ultimate Guide to High Availability with MariaDB
This is a read-only copy of the MariaDB Knowledgebase generated on 2024-11-24. For the latest, interactive version please visit https://mariadb.com/kb/.

IS_IPV4

Syntax

IS_IPV4(expr)

Description

If the expression is a valid IPv4 address, returns 1, otherwise returns 0.

IS_IPV4() is stricter than INET_ATON(), but as strict as INET6_ATON(), in determining the validity of an IPv4 address. This implies that if IS_IPV4 returns 1, the same expression will always return a non-NULL result when passed to INET_ATON(), but that the reverse may not apply.

Examples

SELECT IS_IPV4('1110.0.1.1');
+-----------------------+
| IS_IPV4('1110.0.1.1') |
+-----------------------+
|                     0 |
+-----------------------+

SELECT IS_IPV4('48f3::d432:1431:ba23:846f');
+--------------------------------------+
| IS_IPV4('48f3::d432:1431:ba23:846f') |
+--------------------------------------+
|                                    0 |
+--------------------------------------+
Content reproduced on this site is the property of its respective owners, and this content is not reviewed in advance by MariaDB. The views, information and opinions expressed by this content do not necessarily represent those of MariaDB or any other party.