关于#mysql#的问题，请各位专家解答！(语言-java)

MySQL 有一列数据，隔0.1 取一条数据

74.69
73.53
71.38
71.33
71.23
71.19
71.19
71.18
71.18
71.17
71.17
71.16
71.15
71.15
71.14
71.14
71.13
71.12
71.12
71.11

不懂java'