INDEX
Locates a character or a substring within a string and returns its
location within the string.
Syntax
integer := INDEX (string1, string2)
Parameters
string1 The string within which you want to find a character or a
substring. Put the string in quotes.
string2 The character or substring whose leftmost character location
you want to find within string1. Put the string in quotes.
Example
loc := INDEX ("1234567", "67")
Stores an integer value of 6 in the variable LOC, since the substring
67 is found starting at character position 6 within the string 1234567.