EF中使用SQL语句或存储过程

2018-06-22 07:57:19来源：未知阅读 ()

EF中使用SQL语句或存储过程

1、无参数查询
var model = db.Database.SqlQuery<UserInfo>("select* from UserInfoes ").ToList();
 
2、有参查询
var model = db.Database.SqlQuery<UserInfo>("select* from UserInfoes where id=@ID ",new SqlParameter("@ID",id)).ToList();
 
3、结合linq查询
 
var model = (from p in db.userinfo.SqlQuery("select * from UserInfoes where id=@ID", new SqlParameter("@ID", 1)) select p).ToList();
 
4：EF原始查询单独表
 
model = db.userinfo.OrderByDescending(a => a.ID).Skip(10 * (当前页 - 1)).Take(10).ToList();
 
 
5，EF 执行存储过程或delete 删除语句
 
SqlParameter[] para = new SqlParameter[] {
new SqlParameter("@ID",id)
};
db.Database.ExecuteSqlCommand("delete UserInfoes  where id=@ID", para);
 
存储过程 删除，有几个参数，存储后面要带几个参数以逗号分隔
 
SqlParameter[] para = new SqlParameter[] {
new SqlParameter("@ID",id)
};
db.Database.ExecuteSqlCommand("sp_Userinfos_deleteByID @ID", para);
 
转载来源：https://www.cnblogs.com/lvdongjie/p/5856306.html