摘要:
case when 的使用 select userAccount , eatingDate , case when sum(a)=1 then'早餐' else '' end as 'breakfast' , case when sum(b)=1 then '午餐' else '' end as ' 阅读全文
摘要:
using ( androidhiveEntities db = new androidhiveEntities() ) { #region 添加 //aa a = new aa() { endDate =DateTime.Now,name="张三",doccode="ddoccode ",star 阅读全文