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

---
{
"title": "IPV4_STRING_TO_NUM",
"language": "en"
}
---

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## IPV4_STRING_TO_NUM

IPV4_STRING_TO_NUM

### Description

#### Syntax

`BIGINT IPV4_STRING_TO_NUM(VARCHAR ipv4_string)`

Takes a string containing an IPv4 address in the format A.B.C.D (dot-separated numbers in decimal form). Returns a BIGINT number representing the corresponding IPv4 address in big endian.

#### Notice

If the input string is not a valid IPv4 address or `NULL`, an error is returned

### Example
```sql
mysql> select ipv4_string_to_num('192.168.0.1'); 
+-----------------------------------+ 
| ipv4_string_to_num('192.168.0.1') | 
+-----------------------------------+ 
| 3232235521                        | 
+-----------------------------------+ 
1 row in set (0.01 sec)

mysql> select ipv4_string_to_num('invalid'); 
ERROR 1105 (HY000): errCode = 2, detailMessage = (172.17.0.2)[CANCELLED][INVALID_ARGUMENT][E33] Invalid IPv4 value

mysql> select addr_src, ipv4_string_to_num(addr_src) from ipv4_string_test where addr_src is null;
ERROR 1105 (HY000): errCode = 2, detailMessage = (172.17.0.2)[CANCELLED][E33] Null Input, you may consider convert it to a valid default IPv4 value like '0.0.0.0' first
```

### Keywords

IPV4_STRING_TO_NUM, IP