.net调用存储过程详解（转载）

本文的数据库用的是sql server

连接字符串

string conn = ConfigurationManager.ConnectionStrings["NorthwindConnectionString"].ConnectionString;

View Code

confige文件

 <connectionStrings>
        <add name="NorthwindConnectionString" connectionString="Data Source=.;Initial Catalog=Northwind;Integrated Security=True" providerName="System.Data.SqlClient"/>
    </connectionStrings>

View Code

1. 只返回单一记录集的存储过程

SqlConnection sqlconn = new SqlConnection(conn);
        SqlCommand cmd = new SqlCommand();
        // 设置sql连接
        cmd.Connection = sqlconn;
        // 如果执行语句
        cmd.CommandText = "Categoriestest1";
        // 指定执行语句为存储过程
        cmd.CommandType = CommandType.StoredProcedure;

        SqlDataAdapter dp = new SqlDataAdapter(cmd);
        DataSet ds = new DataSet();
        // 填充dataset
        dp.Fill(ds);
        // 以下是显示效果
        GridView1.DataSource = ds;
        GridView1.DataBind();

View Code

存储过程Categoriestest1

CREATE PROCEDURE Categoriestest1 
AS
select * 
from  Categories
GO

View Code

2. 没有输入输出的存储过程

SqlConnection sqlconn = new SqlConnection(conn);
        SqlCommand cmd = new SqlCommand();

        cmd.Connection = sqlconn;
        cmd.CommandText = "Categoriestest2";
        cmd.CommandType = CommandType.StoredProcedure;
        sqlconn.Open();
        // 执行并显示影响行数
        Label1.Text = cmd.ExecuteNonQuery().ToString();
        sqlconn.Close();

View Code

存储过程Categoriestest2

CREATE PROCEDURE Categoriestest2  AS
insert into dbo.Categories 
(CategoryName,[Description],[Picture])
values ('test1','test1',null)
GO

View Code

3. 有返回值的存储过程

SqlConnection sqlconn = new SqlConnection(conn);
        SqlCommand cmd = new SqlCommand();
        cmd.Connection = sqlconn;
        cmd.CommandText = "Categoriestest3";
        cmd.CommandType = CommandType.StoredProcedure;
        // 创建参数
        IDataParameter[] parameters = {
                new SqlParameter("rval", SqlDbType.Int,4)
            };
        // 将参数类型设置为 返回值类型
        parameters[0].Direction = ParameterDirection.ReturnValue;
        // 添加参数
        cmd.Parameters.Add(parameters[0]);

        sqlconn.Open();
        // 执行存储过程并返回影响的行数
        Label1.Text = cmd.ExecuteNonQuery().ToString();
        sqlconn.Close();
        // 显示影响的行数和返回值
        Label1.Text += "-" + parameters[0].Value.ToString() ;

View Code

存储过程Categoriestest3

CREATE PROCEDURE Categoriestest3
AS
insert into dbo.Categories 
(CategoryName,[Description],[Picture])
values ('test1','test1',null)
return @@rowcount
GO

View Code

4. 有输入参数和输出参数的存储过程

SqlConnection sqlconn = new SqlConnection(conn);
        SqlCommand cmd = new SqlCommand();
        cmd.Connection = sqlconn;
        cmd.CommandText = "Categoriestest4";
        cmd.CommandType = CommandType.StoredProcedure;
        // 创建参数
        IDataParameter[] parameters = {
                new SqlParameter("@Id", SqlDbType.Int,4) ,
                new SqlParameter("@CategoryName", SqlDbType.NVarChar,15) ,
            };
        // 设置参数类型
        parameters[0].Direction = ParameterDirection.Output;  // 设置为输出参数
        parameters[1].Value = "testCategoryName";
        // 添加参数
        cmd.Parameters.Add(parameters[0]);
        cmd.Parameters.Add(parameters[1]);

        sqlconn.Open();
        // 执行存储过程并返回影响的行数
        Label1.Text = cmd.ExecuteNonQuery().ToString();
        sqlconn.Close();
        // 显示影响的行数和输出参数
        Label1.Text += "-" + parameters[0].Value.ToString() ;

View Code

存储过程Categoriestest4

CREATE PROCEDURE Categoriestest4
@id int output,
@CategoryName nvarchar(15)
AS
insert into dbo.Categories 
(CategoryName,[Description],[Picture])
values (@CategoryName,'test1',null)
set  @id = @@IDENTITY
GO

View Code

5. 同时具有返回值、输入参数、输出参数的存储过程

SqlConnection sqlconn = new SqlConnection(conn);
        SqlCommand cmd = new SqlCommand();
        cmd.Connection = sqlconn;
        cmd.CommandText = "Categoriestest5";
        cmd.CommandType = CommandType.StoredProcedure;
        // 创建参数
        IDataParameter[] parameters = {
                new SqlParameter("@Id", SqlDbType.Int,4) ,
                new SqlParameter("@CategoryName", SqlDbType.NVarChar,15) ,
                new SqlParameter("rval", SqlDbType.Int,4)
            };
        // 设置参数类型
        parameters[0].Direction = ParameterDirection.Output;       // 设置为输出参数
        parameters[1].Value = "testCategoryName";                  // 给输入参数赋值
        parameters[2].Direction = ParameterDirection.ReturnValue;  // 设置为返回值
        // 添加参数
        cmd.Parameters.Add(parameters[0]);
        cmd.Parameters.Add(parameters[1]);
        cmd.Parameters.Add(parameters[2]);

        sqlconn.Open();
        // 执行存储过程并返回影响的行数
        Label1.Text = cmd.ExecuteNonQuery().ToString();
        sqlconn.Close();
        // 显示影响的行数，输出参数和返回值
        Label1.Text += "-" + parameters[0].Value.ToString() + "-" + parameters[2].Value.ToString();

View Code

存储过程Categoriestest5

CREATE PROCEDURE Categoriestest5
@id int output,
@CategoryName nvarchar(15)
AS
insert into dbo.Categories 
(CategoryName,[Description],[Picture])
values (@CategoryName,'test1',null)
set  @id = @@IDENTITY
return @@rowcount
GO

View Code

6. 同时返回参数和记录集的存储过程

SqlConnection sqlconn = new SqlConnection(conn);
        SqlCommand cmd = new SqlCommand();
        cmd.Connection = sqlconn;
        cmd.CommandText = "Categoriestest6";
        cmd.CommandType = CommandType.StoredProcedure;
        // 创建参数
        IDataParameter[] parameters = {
                new SqlParameter("@Id", SqlDbType.Int,4) ,
                new SqlParameter("@CategoryName", SqlDbType.NVarChar,15) ,
                new SqlParameter("rval", SqlDbType.Int,4)                   // 返回值
            };
        // 设置参数类型
        parameters[0].Direction = ParameterDirection.Output;        // 设置为输出参数
        parameters[1].Value = "testCategoryName";                   // 给输入参数赋值
        parameters[2].Direction = ParameterDirection.ReturnValue;   // 设置为返回值
        // 添加参数
        cmd.Parameters.Add(parameters[0]);
        cmd.Parameters.Add(parameters[1]);
        cmd.Parameters.Add(parameters[2]);

        SqlDataAdapter dp = new SqlDataAdapter(cmd);
        DataSet ds = new DataSet();
        // 填充dataset
        dp.Fill(ds);
        // 显示结果集
        GridView1.DataSource = ds.Tables[0];
        GridView1.DataBind();

        Label1.Text = "";
        // 显示输出参数和返回值
        Label1.Text +=  parameters[0].Value.ToString() + "-" + parameters[2].Value.ToString();

View Code

存储过程Categoriestest6

CREATE PROCEDURE Categoriestest6
@id int output,
@CategoryName nvarchar(15)
AS
insert into dbo.Categories 
(CategoryName,[Description],[Picture])
values (@CategoryName,'test1',null)
set  @id = @@IDENTITY
select * from Categories
return @@rowcount
GO

View Code

7. 返回多个记录集的存储过程

SqlConnection sqlconn = new SqlConnection(conn);
        SqlCommand cmd = new SqlCommand();
        
        cmd.Connection = sqlconn;
        cmd.CommandText = "Categoriestest7";
        cmd.CommandType = CommandType.StoredProcedure;

        SqlDataAdapter dp = new SqlDataAdapter(cmd);
        DataSet ds = new DataSet();
        // 填充dataset
        dp.Fill(ds);
        // 显示结果集1
        GridView1.DataSource = ds.Tables[0];
        GridView1.DataBind();
        // 显示结果集2
        GridView2.DataSource = ds.Tables[1];
        GridView2.DataBind();

View Code

存储过程Categoriestest7

CREATE PROCEDURE Categoriestest7
AS
select * from Categories
select * from Categories
GO

View Code

本篇转载自：http://www.cnblogs.com/clhed/articles/1269415.html