Question

这里需要一些SqlDataReader专业人士：）

我的代码适用于其他查询而没有任何问题，但是以下查询通过READER返回任何内容，但返回通过其他工具执行的4行（Visual Studio）因此查询确实有效。我猜是有一个与参数有关的SqlDataReader问题？

谢谢！

代码：

using (SqlConnection connection = new SqlConnection(connectionString))
{
    connection.Open();
    var comm = new SqlCommand(Sql.Sql_Get_Expected(), connection);

    var reader = comm.ExecuteReader();

    var table = new DataTable();
    table.Load(reader);

    return table; 
}

查询：

declare @BATCHNUMBER_RUNTIME CHAR(5)
declare @BATCHNUMBER_CONTROL CHAR(5)
declare @CLIENTKEY VARCHAR(48)
declare @REPLACE_CRLF_WITH VARCHAR(48)

Set @BATCHNUMBER_RUNTIME = (SELECT TOP 1 BATCHNUMBER FROM [dbo].[IX_BATCH] where plugin_id = 'MT940' order by BATCHNUMBER desc)
Set @BATCHNUMBER_CONTROL = ""
Set @CLIENTKEY = (SELECT top 1 clientkey FROM [report].[Actual Balance] order by [Transaction INC] desc)
Set @REPLACE_CRLF_WITH = ' \r\l '

(select 'A' as 'Type', [Bank Code],[Transaction Currency],[Transaction Currency - Grouping],[Transaction Currency Description],[Transaction Amount],replace([Description], char(13)+char(10), @REPLACE_CRLF_WITH) as 'Balance Description',[As Of date Modifier],[As Of date Modifier Description],[Reason Code],[Reason Code - Grouping],[Reason Code Description],[User Reference],[ACT_MAIN].Status as 'TRN_BXXX.Status',replace([ACT_MAIN].Description, char(13)+char(10), @REPLACE_CRLF_WITH) as 'Description1',[Creation Module],[Post To Worksheet],[Wires In Status],[Value Date],[Transaction Date],[Process Date],[Local Amount],[Item Type],[In-House Account],[Float 1 Date],[Float 1 Amount],[Float 1 User Code INC],[Float 2 Date],[Float 2 Amount],[Float 2 User Code INC],[Comments],[User Code INC],[User Code],[User Code - Grouping],[User Code Description],[Bank INC],[Bank ID],[Bank - Grouping],[Bank Name],[Account INC],[Account ID],[Account - Grouping],[Account Name],[Account Number],[Account Currency],[In-House Account ID],[In-House Account - Grouping],[In-House Account Name],[In-House Account Number],[Balance Model ID],[Balance Model - Grouping],[Balance Model Description],[FX Rate],[FX Rate Scenario ID],[FX Rate Source ID],[FX Rate Scenario Description],[FX Rate Source Description],[GL Offset Assignment],[GL Status Pre Reco],[GL Status Post Reco],[Reco Number],[Reco Date],[Import Plugin ID],[Transaction Type for GL],[TA Assignment Batch],[TA Created This Record],[Credit Local Amount],[Debit Local Amount],[Bank Code Item Type],[Transaction Base Rate],[Transaction Base Amount],[Local Base Rate],[Local Base Amount],[Base Currency],
                        ACT_REF1.[Reference Type ID] as 'Reference BS20', ACT_REF1.[Reference Value] as 'Reference BS20 Value',
                        ACT_REF2.[Reference Type ID] as 'Reference BS21', ACT_REF2.[Reference Value] as 'Reference BS21 Value',
                        ACT_REF3.[Reference Type ID] as 'Reference BS28', ACT_REF3.[Reference Value] as 'Reference BS28 Value',
                        ACT_REF4.[Reference Type ID] as 'Reference BS61', ACT_REF4.[Reference Value] as 'Reference BS61 Value',
                        ACT_REF5.[Reference Type ID] as 'Reference BRCR', ACT_REF5.[Reference Value] as 'Reference BRCR Value', 
                        ACT_REF6.[Reference Type ID] as 'Reference BRTN', ACT_REF6.[Reference Value] as 'Reference BRTN Value',
                        ACT_HIST.[Sequence], ACT_HIST.[History Stamp Type], ACT_HIST.[History Stamp Description], ACT_HIST.[History Stamp - Grouping], ACT_HIST.[Status] as 'TRN_BXXX_HISTORY.Status', ACT_HIST.[Status Description], ACT_HIST.[Operator ID], ACT_HIST.[Operator Name], ACT_HIST.[Operator - Grouping], ACT_HIST.[History Date], ACT_HIST.[History Time], ACT_HIST.[History Description], ACT_HIST.[Batch Number], ACT_HIST.[Batch Plugin ID], ACT_HIST.[Batch Option ID], ACT_HIST.[Batch File Name], ACT_HIST.[Batch Plugin Description], ACT_HIST.[Internal/External]
from 
    report.[actual balance] ACT_MAIN
left join 
    report.[Actual Balance Reference] ACT_REF1 on ACT_REF1.[Transaction INC] = ACT_MAIN.[Transaction INC] and ACT_REF1.[Reference Type ID] = 'BS20' and act_ref1.clientkey = @clientkey
left join 
    report.[Actual Balance Reference] ACT_REF2 on ACT_REF2.[Transaction INC] = ACT_MAIN.[Transaction INC] and ACT_REF2.[Reference Type ID] = 'BS21' and act_ref2.clientkey = @clientkey
left join 
    report.[Actual Balance Reference] ACT_REF3 on ACT_REF3.[Transaction INC] = ACT_MAIN.[Transaction INC] and ACT_REF3.[Reference Type ID] = 'BS28' and act_ref3.clientkey = @clientkey 
left join 
    report.[Actual Balance Reference] ACT_REF4 on ACT_REF4.[Transaction INC] = ACT_MAIN.[Transaction INC] and ACT_REF4.[Reference Type ID] = 'BS61' and act_ref4.clientkey = @clientkey
left join 
    report.[Actual Balance Reference] ACT_REF5 on ACT_REF5.[Transaction INC] = ACT_MAIN.[Transaction INC] and ACT_REF5.[Reference Type ID] = 'BRCR' and act_ref5.clientkey = @clientkey
left join 
    report.[Actual Balance Reference] ACT_REF6 on ACT_REF6.[Transaction INC] = ACT_MAIN.[Transaction INC] and ACT_REF6.[Reference Type ID] = 'BRTN' and act_ref6.clientkey = @clientkey
left join 
    report.[Actual Balance History] ACT_HIST on ACT_HIST.[Transaction INC] = ACT_MAIN.[Transaction INC] and ACT_HIST.clientkey = @clientkey
where 
    ACT_MAIN.clientkey = @CLIENTKEY
    and [import batch] = @BATCHNUMBER_RUNTIME)

union

(select 'E' as 'Type', [Bank Code],[Transaction Currency],[Transaction Currency - Grouping],[Transaction Currency Description],[Transaction Amount],replace([Description], char(13) +char(10), @REPLACE_CRLF_WITH) as 'Balance Description',[As Of date Modifier],[As Of date Modifier Description],[Reason Code],[Reason Code - Grouping],[Reason Code Description],[User Reference],[ACT_MAIN].Status as 'TRN_BXXX.Status',replace([ACT_MAIN].Description, char(13) +char(10), @REPLACE_CRLF_WITH) as 'Description1',[Creation Module],[Post To Worksheet],[Wires In Status],[Value Date],[Transaction Date],[Process Date],[Local Amount],[Item Type],[In-House Account],[Float 1 Date],[Float 1 Amount],[Float 1 User Code INC],[Float 2 Date],[Float 2 Amount],[Float 2 User Code INC],[Comments],[User Code INC],[User Code],[User Code - Grouping],[User Code Description],[Bank INC],[Bank ID],[Bank - Grouping],[Bank Name],[Account INC],[Account ID],[Account - Grouping],[Account Name],[Account Number],[Account Currency],[In-House Account ID],[In-House Account - Grouping],[In-House Account Name],[In-House Account Number],[Balance Model ID],[Balance Model - Grouping],[Balance Model Description],[FX Rate],[FX Rate Scenario ID],[FX Rate Source ID],[FX Rate Scenario Description],[FX Rate Source Description],[GL Offset Assignment],[GL Status Pre Reco],[GL Status Post Reco],[Reco Number],[Reco Date],[Import Plugin ID],[Transaction Type for GL],[TA Assignment Batch],[TA Created This Record],[Credit Local Amount],[Debit Local Amount],[Bank Code Item Type],[Transaction Base Rate],[Transaction Base Amount],[Local Base Rate],[Local Base Amount],[Base Currency],
                        ACT_REF1.[Reference Type ID] as 'Reference BS20', ACT_REF1.[Reference Value] as 'Reference BS20 Value',
                        ACT_REF2.[Reference Type ID] as 'Reference BS21', ACT_REF2.[Reference Value] as 'Reference BS21 Value',
                        ACT_REF3.[Reference Type ID] as 'Reference BS28', ACT_REF3.[Reference Value] as 'Reference BS28 Value',
                        ACT_REF4.[Reference Type ID] as 'Reference BS61', ACT_REF4.[Reference Value] as 'Reference BS61 Value',
                        ACT_REF5.[Reference Type ID] as 'Reference BRCR', ACT_REF5.[Reference Value] as 'Reference BRCR Value', 
                        ACT_REF6.[Reference Type ID] as 'Reference BRTN', ACT_REF6.[Reference Value] as 'Reference BRTN Value',
                        ACT_HIST.[Sequence], ACT_HIST.[History Stamp Type], ACT_HIST.[History Stamp Description], ACT_HIST.[History Stamp - Grouping], ACT_HIST.[Status] as 'TRN_BXXX_HISTORY.Status', ACT_HIST.[Status Description], ACT_HIST.[Operator ID], ACT_HIST.[Operator Name], ACT_HIST.[Operator - Grouping], ACT_HIST.[History Date], ACT_HIST.[History Time], ACT_HIST.[History Description], ACT_HIST.[Batch Number], ACT_HIST.[Batch Plugin ID], ACT_HIST.[Batch Option ID], ACT_HIST.[Batch File Name], ACT_HIST.[Batch Plugin Description], ACT_HIST.[Internal/External]
                        from report.[Estimated Balance] ACT_MAIN
                        left join report.[Estimated Balance Reference] ACT_REF1 on ACT_REF1.[Transaction INC] = ACT_MAIN.[Transaction INC] and ACT_REF1.[Reference Type ID] = 'BS20' and act_ref1.clientkey = @clientkey
                        left join report.[Estimated Balance Reference] ACT_REF2 on ACT_REF2.[Transaction INC] = ACT_MAIN.[Transaction INC] and ACT_REF2.[Reference Type ID] = 'BS21' and act_ref2.clientkey = @clientkey
                        left join report.[Estimated Balance Reference] ACT_REF3 on ACT_REF3.[Transaction INC] = ACT_MAIN.[Transaction INC] and ACT_REF3.[Reference Type ID] = 'BS28' and act_ref3.clientkey = @clientkey    
                        left join report.[Estimated Balance Reference] ACT_REF4 on ACT_REF4.[Transaction INC] = ACT_MAIN.[Transaction INC] and ACT_REF4.[Reference Type ID] = 'BS61' and act_ref4.clientkey = @clientkey
                        left join report.[Estimated Balance Reference] ACT_REF5 on ACT_REF5.[Transaction INC] = ACT_MAIN.[Transaction INC] and ACT_REF5.[Reference Type ID] = 'BRCR' and act_ref5.clientkey = @clientkey
                        left join report.[Estimated Balance Reference] ACT_REF6 on ACT_REF6.[Transaction INC] = ACT_MAIN.[Transaction INC] and ACT_REF6.[Reference Type ID] = 'BRTN' and act_ref6.clientkey = @clientkey
                        left join report.[Estimated Balance History] ACT_HIST on ACT_HIST.[Transaction INC] = ACT_MAIN.[Transaction INC] and ACT_HIST.clientkey = @clientkey
                    where ACT_MAIN.clientkey = @CLIENTKEY
                        and [import batch] = @BATCHNUMBER_RUNTIME
                    )";

Answer 1

请尝试以下方法：

   using (SqlConnection sqlCon = new SqlConnection("your_Sql_Connection"))
                {
                    sqlCon.Open();
                    using (SqlCommand comm= sqlCon.CreateCommand())
                    {
                        comm.CommandText = "Your_stored_procedure_name"; //Create a store procedure for your query
                        comm.CommandType = CommandType.StoredProcedure;
                        comm.Parameters.Add(new SqlParameter("BATCHNUMBER_RUNTIME", value1)); //parse the actual value to value1
                        comm.Parameters.Add(new SqlParameter("BATCHNUMBER_CONTROL ", value));//parse the actual value to value2
                        comm.Parameters.Add(new SqlParameter("CLIENTKEY", value));//parse the actual value to value3
                        comm.Parameters.Add(new SqlParameter("REPLACE_CRLF_WITH", value));//parse the actual value to value4

                        SqlDataReader reader = comm.ExecuteReader();
                        var table = new DataTable();
                        table.Load(reader);
                        return table;   
                    }
                   sqlCon.Close();
                }

SqlDataReader不返回查询的数据

1 个答案: