一.SQL语句方式 var datefrom = DateTime.Parse(fromdate); var dateto = DateTime.Parse(todate); var sql = string.Format("insert into {0}(id,regionid,fromdate,todate,createdate) values('{1}','{2}',{3},{4},{5})", typeof(DownloadHistory).Name, taskid, re…
比如EF中我定义了这样一个实体: [Table(Name = "MyTableName")] public class MyClass { } [Table(Name = "MyTableName")] public class MyClass { } 现我想获取 MyTableName,可以这样来办: using System.Data.Linq.Mapping; namespace MyEF { class Program { static void Main(…
存储过程往拼接的sql语句中传递日期值 declare @start datetime declare @end datetime set @start='2014-3-1' set @end='2014-3-31' ) set @sql=' select * from search_record where (Name!='' or Phone!='') and (thedate between @st and @en )' exec sp_executesql @sql,N'@st date…
Entity Framework连接MySQL时:由于出现以下异常,无法生成模型:"表"TableDetails"中列"IsPrimaryKey"的值为DBNull. 出现以上错误时,考虑连接目标数据库,执行以下sql语句: -- Execute the following commands in MySQL. use <<database name>>; set global optimizer_switch='derived_m…
