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

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## nvl

<version since="1.2.0">

nvl

</version>

### description
#### Syntax

`nvl(expr1, expr2)`


If the value of expr1 is not null, expr1 is returned, otherwise expr2 is returned

### example

```
mysql> select nvl(1,0);
+--------------+
| nvl(1, 0) |
+--------------+
|            1 |
+--------------+

mysql> select nvl(null,10);
+------------------+
| nvl(NULL, 10) |
+------------------+
|               10 |
+------------------+
```
### keywords
NVL