# toUpper
toUpper

`toUpper` formats a string in all uppercase. `toUpper` skips rows containing null values.

## Syntax


```
toUpper(expression)
```

## Arguments


 *expression*   
The expression must be a string. It can be the name of a field that uses the string data type, a literal value like **'12 Main Street'**, or a call to another function that outputs a string.

## Return type


String

## Example


The following example converts a string value into uppercase.

```
toUpper('Seattle Store #14')
```

The following value is returned.

```
SEATTLE STORE #14
```