ADO.NET调用存储过程

1.调用具有输入参数和返回结果的存储过程

-------------------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-------------------------------

using (SqlConnection conn = new SqlConnection( " Data Source=.;Initial Catalog=test;Integrated Security=True " ))
        {
            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 = " aa " ;
             // 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 = 12 ;

             // 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 ));
                }
            }
        }

2.调用具有输出参数的存储过程

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

create procedure getAge
(
@name varchar ( 50 ),
@age int output
)
as
select @age = age from tab_cJ where [ name ] = @name

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

using (SqlConnection conn = new SqlConnection( " Data Source=.;Initial Catalog=test;Integrated Security=True " ))
        {
            SqlCommand cmd = conn.CreateCommand();
            cmd.CommandType = CommandType.StoredProcedure; // 指定执行存储过程操作
            cmd.CommandText = " getAge " ; // 存储过程名称
            SqlParameter parName = new SqlParameter( " @name " , SqlDbType.VarChar, 50 );
            parName.Value = " aa " ;
             // 对应存储过程getAge的输出参数@age
            SqlParameter parAge = new SqlParameter( " @age " , SqlDbType.Int);
            parAge.Direction = ParameterDirection.Output;
            cmd.Parameters.Add(parName);
            cmd.Parameters.Add(parAge);
             try
            {
                conn.Open();
                cmd.ExecuteNonQuery();
                 int i = int .Parse(parAge.Value.ToString());
                Response.Write(i.ToString());
                conn.Close();
            }
             catch (Exception ex)
            {
                Response.Write(ex.ToString());
            }

        }

合乎自然而生生不息。。。

分类: ASP.NET小实例

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1.调用具有输入参数和返回结果的存储过程

-------------------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-------------------------------

2.调用具有输出参数的存储过程

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

create procedure getAge
(
@name varchar ( 50 ),
@age int output
)
as
select @age = age from tab_cJ where [ name ] = @name

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

using (SqlConnection conn = new SqlConnection( " Data Source=.;Initial Catalog=test;Integrated Security=True " ))
        {
            SqlCommand cmd = conn.CreateCommand();
            cmd.CommandType = CommandType.StoredProcedure; // 指定执行存储过程操作
            cmd.CommandText = " getAge " ; // 存储过程名称
            SqlParameter parName = new SqlParameter( " @name " , SqlDbType.VarChar, 50 );
            parName.Value = " aa " ;
             // 对应存储过程getAge的输出参数@age
            SqlParameter parAge = new SqlParameter( " @age " , SqlDbType.Int);
            parAge.Direction = ParameterDirection.Output;
            cmd.Parameters.Add(parName);
            cmd.Parameters.Add(parAge);
             try
            {
                conn.Open();
                cmd.ExecuteNonQuery();
                 int i = int .Parse(parAge.Value.ToString());
                Response.Write(i.ToString());
                conn.Close();
            }
             catch (Exception ex)
            {
                Response.Write(ex.ToString());
            }

        }

ADO.NET调用存储过程

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