Position = RInStr ( String AS String , Substring AS String [ , Start AS Integer , Comparison AS Integer ] )

Returns the position of the last occurrence of Substring in String from right to left.

If Start _is specified, the search starts at the position _Start.

Comparison can be one of the following value:

• gb.Binary for a binary comparison (the default).
• gb.Text or gb.Case for a case-insensitive comparison.

If the substring is not found, this function returns zero.

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