实例复制mysql> SELECT * FROM pet WHERE name LIKE "b%";   +--------+--------+---------+------+------------+------------+   | name | owner | species | sex | birth | death |   +--------+--------+---------+------+------------+------------+   | Buffy | Harold | dog | f | 1989-05-13 | NULL |   | Bowser | Diane | dog | m | 1989-08-31 | 1995-07-29 |   +--------+--------+---------+------+------------+------------+  1.2.3.4.5.6.7.