获取存储过程返回值及代码中获取返回值

获取存储过程返回值及代码中获取返回值 1.OUPUT参数返回值例： 向Order表插入一条记录,返回其标识 CREATE PROCEDURE [dbo].[nb_order_insert] (@o_buyerid int  ,@o_id bigint  OUTPUT)AS BEGIN SET NOCOUNT ON ;BEGIN INSERT INTO [Order] (o_buyerid )VALUES (@o_buyerid  )SET @o_id = @@IDENTITY END END 存储过程中获得方法： DECLARE   @o_buyerid   int DECLARE   @o_id   bigint EXEC   [ nb_order_insert ]   @o_buyerid  ,o_id  bigint 2.RETURN过程返回值 CREATE PROCEDURE [dbo].[nb_order_insert] (@o_buyerid int  ,@o_id bigint  OUTPUT)AS BEGIN SET NOCOUNT ON ;IF(EXISTS(SELECT * FROM [Shop] WHERE [s_id] = @o_shopid ))BEGIN INSERT INTO [Order] (o_buyerid )VALUES (@o_buyerid  )SET @o_id = @@IDENTITY RETURN 1  — 插入成功返回1END ELSE RETURN 0  — 插入失败返回0END 存储过程中的获取方法 DECLARE   @o_buyerid   int DECLARE   @o_id   bigint DECLARE   @result   bit EXEC   @result   =   [ nb_order_insert ]   @o_buyerid  ,o_id  bigint   3.SELECT 数据集返回值 CREATE PROCEDURE [dbo].[nb_order_select] (@o_id int ) AS BEGIN SET NOCOUNT ON ;SELECT o_id,o_buyerid FROM [Order] WHERE o_id = @o_id GO 存储过程中的获取方法（1）、使用临时表的方法 CREATE   TABLE   [ dbo ] . [ Temp ] ( [ o_id ]   [ bigint ]   IDENTITY ( 1 , 1 )  NOT   FOR   REPLICATION   NOT   NULL , [ o_buyerid ]   [ int ]   NOT   NULL ) INSERT   [ Temp ]   EXEC   [ nb_order_select ]   @o_id – 这时  Temp  就是EXEC执行SELECT 后的结果集 SELECT   *   FROM   [ Temp ] DROP   [ Temp ]  — 删除临时表 （2）、速度不怎么样.（不推荐） SELECT   *   from   openrowset (’provider_name ' , ' Trusted_Connection = yes’, ' exec nb_order_select’)

1.获取Return返回值

程序代码 //存储过程 //Create PROCEDURE MYSQL //     @a int, //     @b int //AS //     return @a + @b //GO SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["LocalSqlServer"].ToString()); conn.Open(); SqlCommand MyCommand = new SqlCommand("MYSQL", conn); MyCommand.CommandType = CommandType.StoredProcedure; MyCommand.Parameters.Add(new SqlParameter("@a", SqlDbType.Int)); MyCommand.Parameters["@a"].Value = 10; MyCommand.Parameters.Add(new SqlParameter("@b", SqlDbType.Int)); MyCommand.Parameters["@b"].Value = 20; MyCommand.Parameters.Add(new SqlParameter("@return", SqlDbType.Int)); MyCommand.Parameters["@return"].Direction = ParameterDirection.ReturnValue; MyCommand.ExecuteNonQuery(); Response.Write(MyCommand.Parameters["@return"].Value.ToString());

2.获取Output输出参数值

程序代码 //存储过程 //Create PROCEDURE MYSQL //     @a int, //     @b int, //     @c int output //AS //     Set @c = @a + @b //GO SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["LocalSqlServer"].ToString()); conn.Open(); SqlCommand MyCommand = new SqlCommand("MYSQL", conn); MyCommand.CommandType = CommandType.StoredProcedure; MyCommand.Parameters.Add(new SqlParameter("@a", SqlDbType.Int)); MyCommand.Parameters["@a"].Value = 20; MyCommand.Parameters.Add(new SqlParameter("@b", SqlDbType.Int)); MyCommand.Parameters["@b"].Value = 20; MyCommand.Parameters.Add(new SqlParameter("@c", SqlDbType.Int)); MyCommand.Parameters["@c"].Direction = ParameterDirection.Output; MyCommand.ExecuteNonQuery(); Response.Write(MyCommand.Parameters["@c"].Value.ToString());

C#接收存储过程返回值:

     public static int User_Add(User us)     {         int iRet;         SqlConnection conn = new SqlConnection(Conn_Str);         SqlCommand cmd = new SqlCommand("User_Add", conn);         cmd.CommandType = CommandType.StoredProcedure;         cmd.Parameters.AddWithValue("@UName", us.UName);         cmd.Parameters.AddWithValue("@UPass", us.UPass);         cmd.Parameters.AddWithValue("@PassQuestion", us.PassQuestion);         cmd.Parameters.AddWithValue("@PassKey", us.PassKey);         cmd.Parameters.AddWithValue("@Email", us.Email);         cmd.Parameters.AddWithValue("@RName", us.RName);         cmd.Parameters.AddWithValue("@Area", us.Area);         cmd.Parameters.AddWithValue("@Address", us.Address);         cmd.Parameters.AddWithValue("@ZipCodes", us.ZipCodes);         cmd.Parameters.AddWithValue("@Phone", us.Phone);         cmd.Parameters.AddWithValue("@QQ", us.QQ);         cmd.Parameters.Add("@RETURN_VALUE", "").Direction = ParameterDirection.ReturnValue;                try         {             conn.Open();             cmd.ExecuteNonQuery();             iRet = (int)cmd.Parameters["@RETURN_VALUE"].Value;         }         catch (SqlException ex)         {             throw ex;         }         finally         {             conn.Close();         }         return iRet;     }

C#接收存储过程输出参数:

    public static decimal Cart_UserAmount(int UID)    {        decimal iRet;        SqlConnection conn = new SqlConnection(Conn_Str);        SqlCommand cmd = new SqlCommand("Cart_UserAmount", conn);        cmd.CommandType = CommandType.StoredProcedure;        cmd.Parameters.AddWithValue("@UID", UID);        cmd.Parameters.Add("@Amount", SqlDbType.Decimal).Direction=ParameterDirection.Output;        try        {            conn.Open();            cmd.ExecuteNonQuery();            iRet = (decimal)cmd.Parameters["@Amount"].Value;        }        catch (SqlException ex)        {            throw ex;        }        finally        {            conn.Close();        }        return iRet;    }

posted on 2009-09-09 10:56 OTO 阅读( ...) 评论( ...) 编辑 收藏

转载于:https://www.cnblogs.com/souso/archive/2009/09/09/1563104.html