docs/sql-manual/sql-functions/ip-functions/ipv4-num-to-string.md

{ “title”: “IPV4_NUM_TO_STRING”, “language”: “en” }

IPV4_NUM_TO_STRING

Description

Syntax

VARCHAR IPV4_NUM_TO_STRING(BIGINT ipv4_num)

VARCHAR INET_NTOA(BIGINT ipv4_num)

Takes a Int16、Int32、Int64 number. Interprets it as an IPv4 address in big endian. Returns a string containing the corresponding IPv4 address in the format A.B.C.d (dot-separated numbers in decimal form).

Notice

Will return NULL if the input parameter is negative or larger than 4294967295(num value of '255.255.255.255'). This function has an alias INET_NOTA.

Example

mysql> select ipv4_num_to_string(3232235521);
+--------------------------------+
| ipv4_num_to_string(3232235521) |
+--------------------------------+
| 192.168.0.1                    |
+--------------------------------+
1 row in set (0.01 sec)

mysql> select num,ipv4_num_to_string(num) from ipv4_bi;
+------------+---------------------------+
| num        | ipv4_num_to_string(`num`) |
+------------+---------------------------+
|         -1 | NULL                      |
|          0 | 0.0.0.0                   |
| 2130706433 | 127.0.0.1                 |
| 4294967295 | 255.255.255.255           |
| 4294967296 | NULL                      |
+------------+---------------------------+
7 rows in set (0.01 sec)

Keywords

IPV4_NUM_TO_STRING, INET_NTOA, IP