Upper

The Upper function works with text strings. It receives a single text string as input and transforms all the characters within it to uppercase. If the provided input is not of string type or if any issues arise during the uppercase converting process, the function will return NULL. This robust error handling ensures a reliable and predictable response even in cases of unexpected input or converting challenges.

Syntax

Upper(string text)

Example

Upper("New York") -> returns 'NEW YORK'