从存储过程C＃发送输出参数并获得多个数据集

Question

我的存储过程： -

DECLARE @return_value int, 
     @Sum int, 
     @Total float 

EXEC @return_value = [dbo].[mysamplesp] 
     @sd = '2014-09-23 00:00:00.000', 
     @ed = '2014-09-30 00:00:00.000', 
     @ID = '40494', 
     @sp = NULL, 
     @Ct = NULL, 
     @GD = NULL, 
     @Sum = @Sum OUTPUT, 
     @Total = @Total OUTPUT 

SELECT @Sum as N'@Sum', 
     @Total as N'@Total' 

SELECT 'Return Value' = @return_value 

执行结果; -

dataset1-

col1 col2 col3 col4 col5 

datase2-

@Sum @Total 

数据集的3-

return_value 

我的C＃实现： -

Dictionary<string, object> storage = new Dictionary<string, object>(); 
       storage.Add("sd", "2014-09-23 00:00:00.000"); 
       storage.Add("ed", "2014-09-30 00:00:00.000"); 
       storage.Add("ID", "40494"); 
       storage.Add("Sp", null); 
       storage.Add("Ct", null); 
       storage.Add("GD", null); 
       storage.Add("Sum", null); 
       storage.Add("Total", null); 

var spReturn = new Data(Data.DBKEY).ExecuteSotredProcedure("mysamplesp", storage); 

。 。 。问：如何使用C＃中的字典将输出参数发送到Sp？可能吗？ Q2：如何从SP中获得多个数据集作为结果？

Answer 1

对于Q1，应该指定SQL参数direction到ParameterDirection.Output

对于Q2，使用SqlDataReader

var cmd = sqlConnection.CreateCommand(); 
cmd.CommandText = "[dbo].[mysamplesp]"; 
cmd.CommandType = CommandType.StoredProcedure; 
sqlConnection.Open(); 
var reader = cmd.ExecuteReader(); 
// process first dataset 
reader.NextResult(); 
// process second dataset 
// etc