比如上图,取3,4行记录的第一行也就是3行,而不返回4行. 使用分析函数row_number() over (partiion by ... order by ...)来进行分组编号,然后取分组标号值为1的记录即可.目前主流的数据库都有支持分析函数,很好用,比如使用下面的方式. select s.* from ( select *, row_number() over (partition by [手机号] order by [店铺]) as group_idx from table_name
1.不多逼逼 model 代码 <?phpnamespace app\common\model; use think\Model; class Fpage{ private $page;//当前页 private $pagenum;//总页数 private $peytype;//矿机类型 public function __construct($page,$pagenum,$peytype){ $this->page=$page; $this->pagenum=$pagenum; $t
调试发现,查询到的就是一条数据 hql语句执行结果 Hibernate: select ballmodel0_.ball_id as ball_id1_1_, ballmodel0_.color as color2_1_, ballmodel0_.origion as origion3_1_, ballmodel0_.owner as owner4_1_, ballmodel0_.province as province5_1_ from t_ball ballmodel0_ 但是另一个dao的