如何使用C＃獲取SP的輸出值

我正在使用以下代碼來執行MySql的SP並獲取輸出值。執行SP後，我需要將輸出值傳遞給C＃。怎麼樣？謝謝。如何使用C＃獲取SP的輸出值

代碼：

public static string GetInsertStatement(string DBName, string TblName, string ColName, string ColValue) 
    { 
     string strData = ""; 
     MySqlConnection conn = new MySqlConnection(ConfigurationSettings.AppSettings["Con_Admin"]); 
     MySqlCommand cmd = conn.CreateCommand(); 
     try 
     { 
      cmd.CommandType = System.Data.CommandType.StoredProcedure; 
      cmd.CommandText = "InsGen"; 
      cmd.Parameters.Clear(); 
      cmd.Parameters.Add("in_db", MySqlDbType.VarChar, 20); 
      cmd.Parameters["in_db"].Value = DBName; 
      cmd.Parameters.Add("in_table", MySqlDbType.VarChar, 20); 
      cmd.Parameters["in_table"].Value = TblName; 
      cmd.Parameters.Add("in_ColumnName", MySqlDbType.VarChar, 20); 
      cmd.Parameters["in_ColumnName"].Value = ColName; 
      cmd.Parameters.Add("in_ColumnValue", MySqlDbType.VarChar, 20); 
      cmd.Parameters["in_ColumnValue"].Value = ColValue; 
      conn.Open(); 
      cmd.ExecuteNonQuery(); 
      conn.Close(); 
     } 
     catch (System.Exception e) 
     { 
      Console.WriteLine(e.Message); 
     } 
     return strData; 
    }

SP：

DELIMITER $$ 

DROP PROCEDURE IF EXISTS `InsGen` $$ 
CREATE DEFINER=`root`@`localhost` PROCEDURE `InsGen` 
(
in_db varchar(20), 
in_table varchar(20), 
in_ColumnName varchar(20), 
in_ColumnValue varchar(20) 
) 
BEGIN 

declare Whrs varchar(500); 
declare Sels varchar(500); 
declare Inserts varchar(2000); 
declare tablename varchar(20); 
declare ColName varchar(20); 

set tablename=in_table; 


# Comma separated column names - used for Select 
select group_concat(concat('concat(\'"\',','ifnull(',column_name,','''')',',\'"\')')) 
INTO @Sels from information_schema.columns where table_schema=in_db and table_name=tablename; 


# Comma separated column names - used for Group By 
select group_concat('`',column_name,'`') 
INTO @Whrs from information_schema.columns where table_schema=in_db and table_name=tablename; 


#Main Select Statement for fetching comma separated table values 
set @Inserts=concat("select concat('insert into ", in_db,".",tablename," values(',concat_ws(',',",@Sels,"),');') 
from ", in_db,".",tablename, " where ", in_ColumnName, " = " , in_ColumnValue, " group by ",@Whrs, ";"); 

PREPARE Inserts FROM @Inserts; 
select Inserts; 
EXECUTE Inserts; 

END $$ 

DELIMITER ;

來源

2010-05-07 Anuya

根據您要返回的數據您可以選擇執行命令，因此請查看執行命令類型以區分ExecuteNonQuery，ExecuteReader，ExecuteReader，ExecuteScalar，ExecuteXmlReader – 2010-05-08 08:12:21