1. 简单的插入数据,然后查询整个表
1 public static void Main(string[] args)
2 {
3 var connectionString = "Server=.;Database=Demo;User Id=sa;Password = keno;";
4
5 //02 insert
6 var customerModel = new Customer { CustomerName = "张三", Address = "北京", City = "北京", Country = "中国", PostalCode = "121212" };
7 using (var connection = new SqlConnection(connectionString))
8 {
9 string sql = "insert into [dbo].[Customer]([CustomerName],[Address],[City],[PostalCode],[Country]) values(@CustomerName,@Address,@City,@PostalCode,@Country)";
10 var addRow = connection.Execute(sql, customerModel);
11 Console.WriteLine(addRow);
12
13 var customers = connection.Query<Customer>("select * from [dbo].[Customer]").ToList();
14
15 foreach (var customer in customers)
16 {
17 Console.WriteLine("id: " + customer.CustomerID + " CustomerName: " + customer.CustomerName + " Address: " + customer.Address + " City: " + customer.City + " PostalCode: " + customer.PostalCode);
18 }
19 }
20
21 Console.ReadKey();
22 }显示结果
2.如果将强类型去掉,他的结果会变成一个动态类型
1 var customers = connection.Query("select * from [dbo].[Customer]").ToList();
3.删除
1 //03 delete
2 using (var connection = new SqlConnection(connectionString))
3 {
4 var count = connection.Execute("delete from customer where customerid=@customerId", new { @customerId = 1 });
5 if (count > 0)
6 {
7 Console.WriteLine("Delete Success" + count);
8 }
9 else
10 {
11 Console.WriteLine("Delete Failed" + count);
12 }
13 }insert update delete 使用同一个方法 excuate 返回数据的执行结果
好了今天的内容就写到这儿了,我们都知道在一个复杂的项目中不仅仅是单条数据的 CRUD ,那么我接着下来研究将会是数据的批量执行及数据的复杂查询
see you tomorrow!
此内容由惯性聚合(RSS阅读器)自动聚合整理，仅供阅读参考。 原文来自 — 版权归原作者所有。