# AS\_NON\_NULLABLE

```
AS_NON_NULLABLE(expr)
```

Returns the provided value with its type changed from the original type to its non-nullable version.

Available in:

| Processors | SQL Studio |
| ---------- | ---------- |
| ✓          | ✓          |

*using case:*

```sql
USE `kafka`;
SELECT 
CASE
       WHEN modified_at IS NULL THEN 0
       ELSE AS_NON_NULLABLE(modified_at)
END AS null_value FROM users-events
LIMIT 5;

```

*Output:*

```json
{
  "value": {
    "null_value": "2023-11-07T05:27:04.740600"
  }
}
{
  "value": {
    "null_value": "2023-11-04T07:46:57.045631"
  }
}
{
  "value": {
    "null_value": 0
  }
}
{
  "value": {
    "null_value": 0
  }
}
{
  "value": {
    "null_value": 0
  }
}
```

In case you want to know more about nullability scenarios, see [`here`](/latest/devx/6.1/user-guide/applications/sql-processors/nullibility.md).


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