target for an INTO clause must be a variable or parameter

  Explanation:  The INTO clause of a FETCH, SELECT, INSERT or
  UPDATE statement must be an updatable variable or parameter.

  User Action:  Correct the statement to use the correct target
  for the assignment.  A common error is to omit the leading :
  from a parameter, as such it may appear to SQL that this is a
  reference to a column with the same name.