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INSTR Function QuickSCREEN
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INSTR - a string processing function that returns the character
position of the first occurrence of a string in another string
Syntax
INSTR([start,]stringexpression1,stringexpression2)
■ stringexpression1 is the string to be searched
■ stringexpression2 is the string to look for
■ If the optional start argument is used to begin the search beyond the
first character of stringexpression1, it must be a numeric-expression
with an integer value between 1 and 32,767.