EF中使用SQL語句或儲存過程

EF中使用SQL語句或儲存過程

 

1、無引數查詢

var model = db.Database.SqlQuery<UserInfo>("select* from UserInfoes ").ToList();

 

2、有參查詢

var model = db.Database.SqlQuery<UserInfo>("select* from UserInfoes where id=@ID ",new SqlParameter("@ID",id)).ToList();

 

3、結合linq查詢

 

var model = (from p in db.userinfo.SqlQuery("select * from UserInfoes where id=@ID", new SqlParameter("@ID", 1)) select p).ToList();

 

4：EF原始查詢單獨表

 

model = db.userinfo.OrderByDescending(a => a.ID).Skip(10 * (當前頁 - 1)).Take(10).ToList();

 

 

5，EF 執行儲存過程或delete 刪除語句

 

SqlParameter[] para = new SqlParameter[] {

new SqlParameter("@ID",id)

};

db.Database.ExecuteSqlCommand("delete UserInfoes  where id=@ID", para);

 

儲存過程 刪除，有幾個引數，儲存後面要帶幾個引數以逗號分隔

 

SqlParameter[] para = new SqlParameter[] {

new SqlParameter("@ID",id)

};

db.Database.ExecuteSqlCommand("sp_Userinfos_deleteByID @ID", para);

 

轉載來源：https://www.cnblogs.com/lvdongjie/p/5856306.html