The ISUPPER() function will check that the expression consists of entirely upper case characters. The function takes the general form:
Where expression can return a result of any type.
The function will return TRUE (1) if the expression consists of entirely lower case characters. The function will return FALSE (0) if the expression contains any characters, which are not upper case characters.
When the ISUPPER() function is used in International Mode the properties of each character is determined according to the Unicode Standard.
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