docs/sql-manual/sql-functions/string-functions/random_bytes.md

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

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## random_bytes
### description

The `random_bytes` function generates a sequence of random bytes.

#### Syntax

```sql
VARCHAR random_bytes(INT len)
```

### Parameters

- len: The `random_bytes` function takes a single argument, which specifies the length of the generated random byte sequence.

### example

```
mysql> select random_bytes(7);
+------------------------------------------------+
| random_bytes(7) |
+------------------------------------------------+
| 0x53edd97401fb6d                               |
+------------------------------------------------+
```

### keywords
    RANDOM BYTES