Question

我的 tradefile 表格如下：

ID          int
TradeNo     nvarchar(50)    
Scrip_Code  nvarchar(50)    
Inst_Type   nvarchar(50)    
Expirydate  datetime    
Buy_Sell    float   
Trade_Qty   float   
Market_Rate float   
Party_Code  nvarchar(50)    
Sauda_Date  nvarchar(50)

FOClosing 表格为：

Cl_Rate         money   
Expirydate      datetime
Trade_Date     datetime
Inst_Type      varchar(6)
Symbol     varchar(12)

我只是触发查询以从tradefile表中获取数据：

SELECT   Scrip_Code,SUM(CASE WHEN Buy_sell = 1 THEN Trade_Qty ELSE 0 END) AS BuyQty, SUM(CASE WHEN Buy_sell = 1 THEN Market_Rate ELSE 0 END) AS BuyRate, SUM(CASE WHEN Buy_sell = 1 THEN Trade_Qty * Market_Rate ELSE 0 END) AS BuyAmount,SUM(CASE WHEN Buy_sell = 2 THEN Trade_Qty ELSE 0 END) AS SellQty, SUM(CASE WHEN Buy_sell = 2 THEN Market_Rate ELSE 0 END) AS SellRate,(CASE WHEN SUM(CASE WHEN Buy_sell = 1 THEN Trade_Qty ELSE 0 END)>SUM(CASE WHEN Buy_sell = 2 THEN Trade_Qty ELSE 0 END) THEN 'BF' ELSE 'BT' END ) as TradeType, SUM(CASE WHEN Buy_sell = 2 THEN Trade_Qty * Market_Rate ELSE 0 END) AS SellAmount, SUM(CASE WHEN Buy_sell = 1 THEN Trade_Qty ELSE 0 END)-SUM(CASE WHEN Buy_sell = 2 THEN Trade_Qty ELSE 0 END) as NETQTY,SUM(CASE WHEN Buy_sell = 1 THEN Trade_Qty * Market_Rate ELSE 0 END)-SUM(CASE WHEN Buy_sell = 2 THEN Trade_Qty * Market_Rate ELSE 0 END)as NetAmt,SUM(CASE WHEN Buy_sell = 2 THEN Trade_Qty * Market_Rate ELSE 0 END)-SUM(CASE WHEN Buy_sell = 1 THEN Trade_Qty * Market_Rate ELSE 0 END) as PNLAmt FROM tradeFile where Inst_Type='FUTIDX' OR Inst_Type='FUTSTK' and Sauda_Date between convert(datetime,'1 Mar 2013') and convert(datetime,'1 Apr 2013') group by Scrip_Code,ExpiryDate,sauda_date

我只想将cl_Rate [Closing rate]附加到它。

关闭比率被检查为tradeFile.ExpiryDate=flclosing.expirydate和tradefile.saudadate=foclosing.tradedate以及Inst_Type='FUTURISTIK'

我有这些条件但是当我尝试在上面的查询中附加它们时它不起作用，因为已经使用了分组。

任何人都可以帮我在上面的查询???中添加上述条件的cl_rate列

修改

try
            {

                con.Open();
                float closingRate = 0;
                DateTime dtExpDate=DateTime.Now.Date;

                da = new SqlDataAdapter("SELECT   ExpiryDate,Scrip_Code,SUM(CASE WHEN Buy_sell = 1 THEN Trade_Qty ELSE 0 END) AS BuyQty, SUM(CASE WHEN Buy_sell = 1 THEN Market_Rate ELSE 0 END) AS BuyRate, SUM(CASE WHEN Buy_sell = 1 THEN Trade_Qty * Market_Rate ELSE 0 END) AS BuyAmount,SUM(CASE WHEN Buy_sell = 2 THEN Trade_Qty ELSE 0 END) AS SellQty, SUM(CASE WHEN Buy_sell = 2 THEN Market_Rate ELSE 0 END) AS SellRate,(CASE WHEN SUM(CASE WHEN Buy_sell = 1 THEN Trade_Qty ELSE 0 END)>SUM(CASE WHEN Buy_sell = 2 THEN Trade_Qty ELSE 0 END) THEN 'BF' ELSE 'BT' END ) as TradeType, SUM(CASE WHEN Buy_sell = 2 THEN Trade_Qty * Market_Rate ELSE 0 END) AS SellAmount, SUM(CASE WHEN Buy_sell = 1 THEN Trade_Qty ELSE 0 END)-SUM(CASE WHEN Buy_sell = 2 THEN Trade_Qty ELSE 0 END) as NETQTY,SUM(CASE WHEN Buy_sell = 1 THEN Trade_Qty * Market_Rate ELSE 0 END)-SUM(CASE WHEN Buy_sell = 2 THEN Trade_Qty * Market_Rate ELSE 0 END)as NetAmt,SUM(CASE WHEN Buy_sell = 2 THEN Trade_Qty * Market_Rate ELSE 0 END)-SUM(CASE WHEN Buy_sell = 1 THEN Trade_Qty * Market_Rate ELSE 0 END) as PNLAmt FROM tradeFile where Inst_Type='FUTIDX' OR Inst_Type='FUTSTK' and Sauda_Date between convert(datetime,'" + dtpForDate.Value.Date.ToShortDateString() + "') and convert(datetime,'" + dtpToDate.Value.Date.ToShortDateString() + "') group by Scrip_Code,ExpiryDate,sauda_date", con);
                DataSet ds = new DataSet();
                 da.Fill(ds);

                 for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
                 {
                     dtExpDate = DateTime.Parse(ds.Tables[0].Rows[i][0].ToString());
                     if (ds.Tables[0].Rows[i][7].ToString() == "BF")
                     {

                         daClRate = new SqlDataAdapter("select cl_rate,ExpiryDate,symbol from foClosing where Symbol='" + ds.Tables[0].Rows[i][1].ToString() + "' and convert(datetime,convert(varchar(11),ExpiryDate))= '" + dtExpDate.Date.ToString("yyyy-MM-dd") + "' and Inst_Type='FUTSTK' and trade_date between convert(datetime,'" + dtpForDate.Value.Date.ToShortDateString() + "') and convert(datetime,'" + dtpToDate.Value.Date.ToShortDateString() + "')  order by trade_date ", con);
                         dsClRate = new DataSet();
                         daClRate.Fill(dsClRate);
                         for (int j = 0; j < dsClRate.Tables[0].Rows.Count; j++)
                         {
                             closingRate = float.Parse(dsClRate.Tables[0].Rows[j][0].ToString());
                         }

                     }
                     else
                     {
                     }
                 }

通过这种方式，我通过不同的查询获取收盘价。

Answer 1

将您的主要查询更改为

SELECT tf.ExpiryDate，tf.Scrip_Code，fc.cl_rate，SUM（CASE WHEN tf.Buy_sell = 1 THEN tf.Trade_Qty ELSE 0 END）AS BuyQty，SUM（CASE WHFf.Buy_sell = 1那么tf.Market_Rate ELSE 0 END） AS BuyRate，SUM（例如tf.Buy_sell = 1那么tf.Trade_Qty * tf.Market_Rate ELSE 0 END）AS BuyAmount，SUM（如果tf.Buy_sell = 2那么tf.Trade_Qty ELSE 0 END）AS SellQty，SUM（CASE当tf.Buy_sell = 2那么tf.Market_Rate ELSE 0 END）AS SellRate，（情况是SUM（例如tf.Buy_sell = 1那么tf.Trade_Qty ELSE 0 END）＆gt; SUM（CASE WHFf.Buy_sell = 2那么tf .Trade_Qty ELSE 0 END）然后'BF'ELSE'BT'END）作为TradeType，SUM（如果tf.Buy_sell = 2那么tf.Trade_Qty * tf.Market_Rate ELSE 0 END）作为SellAmount，SUM（例如tf.Buy_sell = 1那么tf.Trade_Qty ELSE 0 END）-SUM（当tf.Buy_sell = 2那么tf.Trade_Qty ELSE 0 END）作为NETQTY，SUM（例如tf.Buy_sell = 1那么tf.Trade_Qty * tf.Market_Rate ELSE 0 END）-SUM（如果tf.Buy_sell = 2那么tf.Trade_Qty * tf.Market_Rate ELSE 0 END）作为NetAmt，SUM（CASE WH） EN tf.Buy_sell = 2 THEN tf.Trade_Qty * tf.Market_Rate ELSE 0 END）-SUM（tf.Buy_sell = 1 THEN tf.Trade_Qty * tf.Market_Rate ELSE 0 END）作为PNLAmt FROM tradeFile tf，foClosing fc where tf .Inst_Type ='FUTIDX'或tf.Inst_Type ='FUTSTK'和tf.Sauda_Date之间的转换（datetime，'“+ dtpForDate.Value.Date.ToShortDateString（）+”'）和转换（datetime，convert（varchar（11），fc.ExpiryDate））='“+ dtExpDate.Date.ToString（”yyyy-MM-dd“）+”'和convert（datetime，'“+ dtpToDate.Value.Date.ToShortDateString（）+”'）和fc .symbol = tf.Scrip_Code和fc.Inst_Type ='FUTSTK'和fc.trade_date = tf.sauda_date和fc.ExpiryDate = tf.ExpiryDate group by Scrip_Code，ExpiryDate，sauda_date

您之前的问题没有说明的是外键..您将forClosing.Symbol与tradeFile.Scrip_Code相匹配。这是缺失的部分。

用两个表连接查询

1 个答案: