07 2023 档案

linq left join group by count组合统计，防止count()为null结果为1的错误。
摘要：原生sql select car.id,carnum,count(carplan.carid) as timeLen from tab_car as car join tab_inComeType as income on car.inComeTypeId=income.Id and inComeT 阅读全文
posted @ 2023-07-06 14:57 yuanyuanyang 阅读(44) 评论(0) 推荐(0)