Returns the substring starting at byte position startindex and ending at endindex-1 or the end of the string.


String  subString(Numeric startindex [, Numeric endindex ])
  1. startindex is the index in the current String where the substring starts. The first byte of a string is at position 0.
  2. endindex (optional) is the end index. If endindex is specified, the substring ends at endindex-1. If endindex is not specified, the substring extends to the end of the current String.


The value of the String order_line.billState is "smiles" (indexes 012345).

The following code returns the substring "mile":