class SQLite3::Statement

def bind_param(param, value)

See also #bind_params.

Otherwise it is used as the name of the placeholder to bind to.
Fixnum, it is treated as an index for a positional placeholder.
Binds value to the named (or positional) placeholder. If +param+ is a 
def bind_param(param, value)
  must_be_open!
  reset! if active?
  if Fixnum === param
    case value
    when Bignum then
      @driver.bind_int64(@handle, param, value)
    when Integer then
      if value >= (2 ** 31)
        @driver.bind_int64(@handle, param, value)
      else
        @driver.bind_int(@handle, param, value)
      end
    when Numeric then
      @driver.bind_double(@handle, param, value.to_f)
    when Blob then
      @driver.bind_blob(@handle, param, value)
    when nil then
      @driver.bind_null(@handle, param)
    else
      @driver.bind_text(@handle, param, value)
    end
  else
    param = param.to_s
    param = ":#{param}" unless param[0] == ?:
    index = @driver.bind_parameter_index(@handle, param)
    raise Exception, "no such bind parameter '#{param}'" if index == 0
    bind_param index, value
  end
end