1SELECT strcmp('a','a '), strcmp('a ','a'); 2SELECT strcmp('a\0','a' ), strcmp('a','a\0'); 3SELECT strcmp('a\0','a '), strcmp('a ','a\0'); 4SELECT strcmp('a\t','a' ), strcmp('a', 'a\t'); 5SELECT strcmp('a\t','a '), strcmp('a ', 'a\t'); 6