ADO.NET运用存储过程例子

-------------------建表------------------

CREATE TABLE [tab_cJ] (

[id] [int] IDENTITY (1, 1) NOT NULL PRIMARY KEY,

[name] [varchar] (50) ,

[age] [int] NULL ,

[info] [varchar] (200)

)

------------------建存储过程-------------------------

CREATE PROCEDURE QueryInfoByName

@name varchar(50),

@age int

AS

select info from tab_cj where [name]=@name and age=@age

GO

--------------------调用-------------------------------

protected void GetInfoByName(string txt_name, int txt_age)

{

SqlConnection conn = new SqlConnection("server=localhost;database=dbDemo;uid=sa");

SqlCommand cmd = conn.CreateCommand();

cmd.CommandType = CommandType.StoredProcedure; //指定执行存储过程操作

cmd.CommandText = "QueryInfoByName"; //存储过程名称

//对应存储过程QueryInfoByName的第一个参数@name

SqlParameter parName = new SqlParameter("@name", SqlDbType.VarChar, 50);

//指定参数@name要转入的值

parName.Value = txt_name;

//对应存储过程QueryInfoByName的第二个参数@age

SqlParameter parAge = new SqlParameter("@age", SqlDbType.Int);

//指定参数@age要转入的值

parAge.Value = txt_age;

//这一步非常重要，一定将设置好的两个参数类型添加到Command对象的参数集合里

cmd.Parameters.Add(parName);

cmd.Parameters.Add(parAge);

//方式一，查询回来的结果需要显示在DataGrid之类的控件上

DataSet ds = new DataSet();

SqlDataAdapter adapter = new SqlDataAdapter(cmd);

adapter.Fill(ds);

//方式二，按单个值读取

conn.Open();

SqlDataReader reader = cmd.ExecuteReader();

if (reader.HasRows)

{

while (reader.Read())

{

Response.Write(reader.GetString(0));

}

}

conn.Close();

}