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What is the difference between bulitin fuction VERIFY and INDEX?
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Answer / diana
INDEX(x,y) returns the starting position of the string y within string
x. Returns 0 if y not present in x.
Verify(x,y) returns the first position in x where any character in
y is not in string 1. If all characters in x are contained in y, result is zero.
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index(x,y) : builtin-function to return the starting position of x match y. no y are in x then 0. k = index('abcabcdefg','cd'); k= 6
veryfy(x,y): builtin-function to return the first(leftmost) position of x not any in y. all x are in y then 0. k =veryfy('123456a','0123456789') ; k= 7
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