Trims all leading and trailing spaces from a string.
string can be a constant, a character field, an expression that results in a string or a function that returns a string.
This function returns a character string.
Calculated field example
If the Firstname field contained the value " Tristan ", the following calculated field expression would return "Tristan": Trim(Firstname)
Records with a Firstname field value of " Isabella" or "Isabella " can be selected or found using the expression: Trim(Firstname)="Isabella"