public Integer insertObjects(final Goods entity) { // 定义sql语句 final String sql1 = "insert into goods(name,price,cid)values(?,?,?)"; /* * int num = jdbcTemplate.update(sql1, new Object[] { entity.getName(), * entity.getPric
不啰嗦,直接上图,大概实现效果如下: 有上面这样一份数据,将他们按照userAccount和submitTime进行分组,然后提前每组数据的前两条记录 提取后数据如下: 实现的SQL如下: select t.* from (select *,row_number() over(partition by userAccount, submitTime order by submitTime) rn from demoTable) t @_@! 结束啦~~