1.OUPUT参数返回值
代码如下:
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
@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:
代码如下:
DECLARE @o_buyerid int
DECLARE @o_id bigint
EXEC [nb_order_insert] @o_buyerid,@o_id output
DECLARE @o_id bigint
EXEC [nb_order_insert] @o_buyerid,@o_id output
2.RETURN过程返回值
代码如下:
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_buyerid ))
BEGIN
INSERT INTO [Order](o_buyerid ) VALUES (@o_buyerid )
SET @o_id = @@IDENTITY
RETURN 1 — 插入成功返回1
END
ELSE
RETURN 0 — 插入失败返回0 END
@o_buyerid int,
@o_id bigint OUTPUT
)
AS
BEGIN
SET NOCOUNT ON;
IF(EXISTS(SELECT * FROM [Shop] WHERE [s_id] = @o_buyerid ))
BEGIN
INSERT INTO [Order](o_buyerid ) VALUES (@o_buyerid )
SET @o_id = @@IDENTITY
RETURN 1 — 插入成功返回1
END
ELSE
RETURN 0 — 插入失败返回0 END
存储过程中的获取方法
代码如下:
DECLARE @o_buyerid int
DECLARE @o_id bigint
DECLARE @result bit
EXEC @result = [nb_order_insert] @o_buyerid,o_id output
DECLARE @o_id bigint
DECLARE @result bit
EXEC @result = [nb_order_insert] @o_buyerid,o_id output
3.SELECT 数据集返回值
代码如下:
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
@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
代码如下:
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
[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
1.获取Return返回值
代码如下:
sqlConnection conn = new sqlConnection(ConfigurationManager.ConnectionStrings["ConnStr"].ToString());
conn.Open();
sqlCommand MyCommand = new sqlCommand("nb_order",conn); //存储过程名字
MyCommand.CommandType = CommandType.StoredProcedure; //指定类型为存储过程
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(); //执行存储过程
Response.Write(MyCommand.Parameters["@return"].Value.ToString()); //取得return的返回值
conn.Open();
sqlCommand MyCommand = new sqlCommand("nb_order",conn); //存储过程名字
MyCommand.CommandType = CommandType.StoredProcedure; //指定类型为存储过程
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(); //执行存储过程
Response.Write(MyCommand.Parameters["@return"].Value.ToString()); //取得return的返回值
代码如下:
sqlConnection conn = new sqlConnection(ConfigurationManager.ConnectionStrings["ConnStr"].ToString());
conn.Open();
sqlCommand MyCommand = new sqlCommand("nb_order",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()); //指定取得存储过程的返回值
conn.Open();
sqlCommand MyCommand = new sqlCommand("nb_order",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()); //指定取得存储过程的返回值
C#接收存储过程返回值:
代码如下:
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; //指定存储过程 AddWithValue可以指定名称和值,而Add需要指定名称,类型,再给value
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; //指定输出参数是返回值
try
{
conn.Open();
cmd.ExecuteNonQuery(); //执行存储过程
iRet = (int)cmd.Parameters["@RETURN_VALUE"].Value; //取得return的值
}
catch (sqlException ex)
{
throw ex;
}
finally
{
conn.Close();
}
return iRet;
}
{
int iRet;
sqlConnection conn = new sqlConnection(Conn_Str);
sqlCommand cmd = new sqlCommand("User_Add",conn);
cmd.CommandType = CommandType.StoredProcedure; //指定存储过程 AddWithValue可以指定名称和值,而Add需要指定名称,类型,再给value
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; //指定输出参数是返回值
try
{
conn.Open();
cmd.ExecuteNonQuery(); //执行存储过程
iRet = (int)cmd.Parameters["@RETURN_VALUE"].Value; //取得return的值
}
catch (sqlException ex)
{
throw ex;
}
finally
{
conn.Close();
}
return iRet;
}
C#接收存储过程的输出参数:
代码如下:
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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; //利用Add方法为其添加名称,类型和输出参数
try
{
conn.Open();
cmd.ExecuteNonQuery();
iRet = (decimal)cmd.Parameters["@Amount"].Value; //取得存储过程中的输出参数
}
catch (sqlException ex)
{
throw ex;
}
finally
{
conn.Close();
}
return iRet;
}
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; //利用Add方法为其添加名称,类型和输出参数
try
{
conn.Open();
cmd.ExecuteNonQuery();
iRet = (decimal)cmd.Parameters["@Amount"].Value; //取得存储过程中的输出参数
}
catch (sqlException ex)
{
throw ex;
}
finally
{
conn.Close();
}
return iRet;
}
C#取得结果集:
代码如下:
string sqlw = string.Format("exec sp_UserInfo {0}",uid);
DataTable dsuser = sqlConn.GetDataSet(sqlw).Tables[0];
DataTable dsuser = sqlConn.GetDataSet(sqlw).Tables[0];
public static DataSet GetDataSet(string sql)
{
string connStr = System.Configuration.ConfigurationManager.ConnectionStrings["ConnStr"].ToString();
sqlConnection conn = new sqlConnection(connStr);
sqlCommand cmd = new sqlCommand(sql,conn);
sqlDataAdapter da = new sqlDataAdapter(cmd); //直接用sqlDataAdapter将结果集取出来放入dataset中
DataSet ds = new DataSet();
da.Fill(ds);
conn.Close();
cmd.Dispose();
return ds;
}