docs/sql-manual/sql-functions/ip-functions/to-ipv4-or-null.md

---
{
"title": "TO_IPV4_OR_NULL",
"language": "en"
}
---

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## TO_IPV4_OR_NULL

TO_IPV4_OR_NULL

### Description

#### Syntax

`IPV4 TO_IPV4_OR_NULL(STRING ipv4_str)`

Same as to_ipv4, but if the IPv4 address has an invalid format, it returns NULL.

#### Notice

`If input is NULL, return NULL.`

### Example

```sql
mysql> select to_ipv4_or_null('.');
+----------------------+
| to_ipv4_or_null('.') |
+----------------------+
| NULL                 |
+----------------------+

mysql> select to_ipv4_or_null(NULL);
+-----------------------+
| to_ipv4_or_null(NULL) |
+-----------------------+
| NULL                  |
+-----------------------+
```

### Keywords

TO_IPV4_OR_NULL, IP