Your solution is elegant and works beautifully with "ABCDE", "BCDEO" -- the OP's two initial strings. But the OP later included "ABCDE", "BBBBB" as options, clearly indicating the possibility of character reptition. Quite agree that a clearer spec would help...

In reply to Re^4: compare two strings and return only he unique values. by Kenosis
in thread compare two strings and return only he unique values. by Learnlot1

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