title: Oracle Count with Function
body: <p>I have a <code>SQL</code> like this.</p>
  
  <pre><code>SELECT A.HESAP_NO, A.TEKLIF_NO1 || '/' || A.TEKLIF_NO2 AS TEKLIF
  MV_K(A.TEKLIF_NO1,A.TEKLIF_NO2, A.DATE) AS KV
  FROM S_TEKLIF A
  </code></pre>
  
  <p>When i want calculate <code>MV_K(A.TEKLIF_NO1,A.TEKLIF_NO2, A.DATE)/COUNT(@TEKLIF)</code> but it doesn't work.</p>
  
  <p>I use Oracle.</p>
  
  <p>How can i divide in <code>Oracle</code> like that?</p>
  
  <p>Here is my FULL aspx code;</p>
  
  <pre><code>&lt;%@ Page Language="C#" AutoEventWireup="true"   %&gt;
  
  &lt;!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"&gt;
  &lt;%@ Import Namespace="System" %&gt;
  &lt;%@ Import Namespace="System.Configuration" %&gt;
  &lt;%@ Import Namespace="System.IO" %&gt;
  &lt;%@ Import Namespace="System.Text" %&gt;
  &lt;%@ Import Namespace="System.Data.SqlClient" %&gt;
  &lt;%@ Import Namespace="System.Web.UI.WebControls" %&gt;
  &lt;%@ Import Namespace="System.Collections.Generic" %&gt;
  &lt;%@ Import Namespace="System.Linq" %&gt;
  &lt;%@ Import Namespace="System.Web" %&gt;
  &lt;%@ Import Namespace="System.Web.UI" %&gt;
  &lt;%@ Import Namespace="System.Collections" %&gt;
  &lt;%@ Import Namespace="System.Data.OracleClient" %&gt;
  
  &lt;%@ Register assembly="AjaxControlToolkit" namespace="AjaxControlToolkit" tagprefix="asp" %&gt;
  
  &lt;script runat="server"&gt;
      protected void Page_Load(object sender, EventArgs e)
      {
  
          Calculate.Visible = false;
  
      }
  
      protected void Calculate_Click(object sender, EventArgs e)
      {
          Calculate.Visible = true;
  
  
         double sumMV = 0;
          foreach (GridViewRow gvr in GridView1.Rows)
          {
              CheckBox cb = (CheckBox)gvr.FindControl("NameCheckBoxField2");
              if (cb.Checked == true)
              {
                      double amount = Convert.ToDouble(gvr.Cells[9].Text);
                      sumMV += amount;
  
              }
          }
  
          GridView1.FooterRow.Cells[9].Text = String.Format("{0:n}", sumMV);
  
          double sumRISK = 0;
          foreach (GridViewRow gvr in GridView1.Rows)
          {
              CheckBox cb = (CheckBox)gvr.FindControl("NameCheckBoxField1");
              if (cb.Checked == true)
              {
                      double amount = Convert.ToDouble(gvr.Cells[7].Text);
                      sumRISK += amount;
              }
          }
  
          GridView1.FooterRow.Cells[7].Text = String.Format("{0:n}", sumRISK);
  
          double sumKV = 0;
          foreach (GridViewRow gvr in GridView1.Rows)
          {
              CheckBox cb = (CheckBox)gvr.FindControl("NameCheckBoxField3");
              if (cb.Checked == true)
              {
                  double amount = Convert.ToDouble(gvr.Cells[11].Text);
                  if (amount != -1)
                  {
                      sumKV += amount;
                  }
              }
          }
          GridView1.FooterRow.Cells[11].Text = String.Format("{0:n}", sumKV);
  
      }
      protected void SendToGridview_Click(object sender, EventArgs e)
      {
          DateTime dt_stb;
  
          Calculate.Visible = true;
  
          string strQuery = string.Empty;
  
          string ConnectionString = ConfigurationManager.ConnectionStrings["ora"].ConnectionString;
  
          OracleConnection myConnection = new OracleConnection(ConnectionString);
  
          string txtBoxText1 = ((TextBox)Page.FindControl("TextBox1")).Text;
          if (txtBoxText1 != "")
          {
              strQuery = @"SELECT A.HESAP_NO, A.TEKLIF_NO1 || '/' || A.TEKLIF_NO2 AS TEKLIF, A.MUS_K_ISIM AS MUSTERI, 
                      B.MARKA, C.SASI_NO, C.SASI_DURUM, D.TAS_MAR, NVL(RISK_SASI(A.TEKLIF_NO1, A.TEKLIF_NO2, C.URUN_SIRA_NO, C.SIRA_NO, :S_TARIH_B),0) AS RISK,
                      NVL(MV_SASI(A.TEKLIF_NO1, A.TEKLIF_NO2, C.SIRA_NO, C.URUN_SIRA_NO, :S_TARIH_B),0) AS MV,
                      MV_K(A.TEKLIF_NO1,A.TEKLIF_NO2, :S_TARIH_B)/COUNT(*) OVER() AS KV
                      FROM S_TEKLIF A,  S_URUN B, S_URUN_DETAY C, KOC_KTMAR_PR D
                      WHERE A.TEKLIF_NO1 || A.TEKLIF_NO2 = B.TEKLIF_NO1 || B.TEKLIF_NO2
                      AND A.TEKLIF_NO1 || A.TEKLIF_NO2 = C.TEKLIF_NO1 || C.TEKLIF_NO2
                      AND B.SIRA_NO = C.URUN_SIRA_NO
                      AND C.SASI_DURUM IN ('A','R')
                      AND B.DISTRIBUTOR = D.DIST_KOD
                      AND B.MARKA = D.MARKA_KOD
                      AND B.URUN_KOD = D.TAS_KOD ";
  
          }
          string param = "";
          foreach (ListItem l in CheckBoxList1.Items)
          {
              if (l.Selected)
              {
                  param += string.Format("'{0}'", l.Value);
                  param += ",";
              }
          }
  
          try
          {
              param = param.Remove(param.Length - 1);
  
              strQuery = strQuery + " AND A.HESAP_NO IN (" + param + ")";
  
              OracleCommand myCommand = new OracleCommand(strQuery, myConnection);
              myCommand.CommandType = System.Data.CommandType.Text;
              myCommand.Connection = myConnection;
  
              myCommand.CommandText = strQuery;
              dt_stb = DateTime.Parse(txtBoxText1);
              myCommand.Parameters.AddWithValue(":S_TARIH_B", dt_stb);
  
              myConnection.Open();
  
              OracleDataReader dr = myCommand.ExecuteReader(System.Data.CommandBehavior.CloseConnection);
  
              GridView1.DataSource = dr;
              GridView1.DataBind();
              GridView1.Visible = true;
  
              myConnection.Close();
          }
          catch
          {
              ScriptManager.RegisterClientScriptBlock(this, this.GetType(), " ", "alert('Choose at least one customer!')", true);
              Calculate.Visible = false;
              GridView1.Visible = false;
              TextBox1.Text = string.Empty;
          }
  
              double sumMV = 0;
              foreach (GridViewRow gvr in GridView1.Rows)
              {
                  CheckBox cb = (CheckBox)gvr.FindControl("NameCheckBoxField2");
                  if (cb.Checked == true)
                  {
                      double amountMV = Convert.ToDouble(gvr.Cells[9].Text);
  
  
                          sumMV += amountMV;
  
                  }
              }
  
              GridView1.FooterRow.Cells[9].Text = String.Format("{0:n}", sumMV);
  
              double sumRISK = 0;
              foreach (GridViewRow gvr in GridView1.Rows)
              {
                  CheckBox cb = (CheckBox)gvr.FindControl("NameCheckBoxField1");
                  if (cb.Checked == true)
                  {
                      double amountBV = Convert.ToDouble(gvr.Cells[7].Text);
  
  
                          sumRISK += amountBV;
  
                  }
              }
  
              GridView1.FooterRow.Cells[7].Text = String.Format("{0:n}", sumRISK);
  
              double sumKV = 0;
              foreach (GridViewRow gvr in GridView1.Rows)
              {
                  CheckBox cb = (CheckBox)gvr.FindControl("NameCheckBoxField3");
                  if (cb.Checked == true)
                  {
                      double amountKV = Convert.ToDouble(gvr.Cells[11].Text);
                      if (amountKV != -1)
                      {
                          sumKV += amountKV;
                      }
                  }
              }
  
              GridView1.FooterRow.Cells[11].Text = String.Format("{0:n}", sumKV);
  
  
      }
  &lt;/script&gt;
  &lt;!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"&gt;
  
  &lt;html xmlns="http://www.w3.org/1999/xhtml"&gt;
  &lt;head runat="server"&gt;
      &lt;title&gt;&lt;/title&gt;
      &lt;style type="text/css"&gt;
  
          #form1
          {
              height: 729px;
              width: 1083px;
          }
  
          .style1
          {
              width: 265px;
          }
  
        &lt;/style&gt;
  &lt;/head&gt;
  &lt;body&gt;
      &lt;form id="form1" runat="server"&gt;
      &lt;br /&gt;
      &lt;img src="../images/Scania_Logo.gif" style="height: 49px; width: 193px" /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;
      &lt;asp:Label ID="Label1" runat="server" Font-Bold="True" Font-Size="X-Large" 
          ForeColor="Blue" Height="40px" Text="BV &amp;amp; RISK SIMULATOR" 
          Width="329px" style="text-align: center"&gt;&lt;/asp:Label&gt;
  &amp;nbsp;
      &lt;asp:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server"&gt;
      &lt;/asp:ToolkitScriptManager&gt;
      &lt;br /&gt;
      &lt;div style="OVERFLOW-Y:scroll; WIDTH:362px; HEIGHT:177px"&gt;
          &lt;br /&gt;
  
      &lt;table border="5" bordercolor=blue style="height: 116px; width: 343px"&gt;
      &lt;tr&gt;
      &lt;td class="style1"&gt;
          &lt;asp:CheckBoxList ID="CheckBoxList1" runat="server" 
              DataSourceID="ChechkBoxDataSource" DataTextField="MUS_K_ISIM" 
              DataValueField="HESAP_NO" Font-Size="12pt"&gt;
          &lt;/asp:CheckBoxList&gt;
          &lt;/td&gt;
          &lt;/tr&gt;
      &lt;/table&gt;
      &lt;/div&gt;
      &lt;div style="width: 331px"&gt;
          &lt;br /&gt;
          &lt;asp:Textbox ID="TextBox1" runat="server" Font-Size="X-Small" Height="13px" Font-Names="Verdana" Width="75px" &gt;&lt;/asp:Textbox&gt;   
          &lt;asp:CalendarExtender Format="dd/MM/yyyy" ID="TextBox1_CalendarExtender" runat="server" 
              TargetControlID="TextBox1"&gt;
          &lt;/asp:CalendarExtender&gt;
          &lt;asp:Image ID="ImageButton3" runat="server"  ImageUrl="~/images/SmallCalendar.gif"/&gt;
          &lt;br /&gt;
         &lt;/div&gt;
          &lt;asp:SqlDataSource ID="ChechkBoxDataSource" runat="server" 
              ConnectionString="&lt;%$ ConnectionStrings:ora %&gt;" 
              ProviderName="&lt;%$ ConnectionStrings:ora.ProviderName %&gt;" 
              SelectCommand="SELECT DISTINCT(A.HESAP_NO),A.MUS_K_ISIM
  FROM S_TEKLIF A
  ORDER BY A.MUS_K_ISIM"&gt;
          &lt;/asp:SqlDataSource&gt;
      &lt;br /&gt;
      &lt;asp:Button ID="SendToGridview" runat="server" Text="Calculate" Width="73px" 
          onclick="SendToGridview_Click" /&gt;
      &lt;br /&gt;
      &lt;br /&gt;
      &lt;asp:GridView ID="GridView1" runat="server"  
           Width="16px" CellPadding="4" 
          GridLines="None" Height="16px" ForeColor="#333333" 
          AutoGenerateColumns="False" DataKeyNames="RISK,MV" BorderColor="White" 
          BorderStyle="Ridge" ShowFooter="True" &gt;
          &lt;AlternatingRowStyle BackColor="White" /&gt;
          &lt;Columns&gt;
          &lt;asp:BoundField HeaderText="HESAP" DataField="HESAP_NO" /&gt;
       &lt;asp:BoundField HeaderText="TEKLIF" DataField="TEKLIF" &gt;
              &lt;ItemStyle Wrap="False" /&gt;
              &lt;/asp:BoundField&gt;
       &lt;asp:BoundField HeaderText="MUSTERI" DataField="MUSTERI" &gt;
              &lt;ItemStyle Wrap="False" /&gt;
              &lt;/asp:BoundField&gt;
       &lt;asp:BoundField HeaderText="MARKA" DataField="MARKA" /&gt;
       &lt;asp:BoundField HeaderText="SASI" DataField="SASI_NO" &gt;
              &lt;ItemStyle Wrap="False" /&gt;
              &lt;/asp:BoundField&gt;
       &lt;asp:BoundField HeaderText="DURUM" DataField="SASI_DURUM" /&gt;
       &lt;asp:BoundField HeaderText="TASIT MARKA" DataField="TAS_MAR" &gt;
              &lt;ItemStyle Wrap="False" /&gt;
              &lt;/asp:BoundField&gt;
       &lt;asp:BoundField HeaderText="BV" DataField="RISK" DataFormatString="{0:n2}"/&gt;
  
  
              &lt;asp:templatefield headertext=""&gt;
              &lt;itemtemplate&gt;
              &lt;asp:CheckBox DataField="NameCheckBoxField1" ID="NameCheckBoxField1" Checked="True" runat="server"&gt;&lt;/asp:CheckBox&gt;
              &lt;/itemtemplate&gt;
              &lt;/asp:templatefield&gt;
              &lt;asp:BoundField HeaderText="MV" DataField="MV" DataFormatString="{0:n2}"/&gt;
              &lt;asp:templatefield headertext=""&gt;
              &lt;itemtemplate&gt;
              &lt;asp:CheckBox DataField="NameCheckBoxField2" ID="NameCheckBoxField2" Checked="True" runat="server"&gt;&lt;/asp:CheckBox&gt;
              &lt;/itemtemplate&gt;
              &lt;/asp:templatefield&gt;
              &lt;asp:BoundField HeaderText="KV" DataField="KV" DataFormatString="{0:n2}"/&gt;
              &lt;asp:templatefield headertext=""&gt;
              &lt;itemtemplate&gt;
              &lt;asp:CheckBox DataField="NameCheckBoxField3" ID="NameCheckBoxField3" Checked="True" runat="server"&gt;&lt;/asp:CheckBox&gt;
              &lt;/itemtemplate&gt;
              &lt;/asp:templatefield&gt;
  
          &lt;/Columns&gt;
          &lt;EditRowStyle BackColor="#2461BF" /&gt;
          &lt;FooterStyle BackColor="#507CD1" ForeColor="White" Font-Bold="True" /&gt;
          &lt;HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" /&gt;
          &lt;PagerStyle BackColor="#2461BF" ForeColor="White" HorizontalAlign="Center" /&gt;
          &lt;RowStyle BackColor="#EFF3FB" /&gt;
          &lt;SelectedRowStyle BackColor="#D1DDF1" Font-Bold="True" ForeColor="#333333" /&gt;
          &lt;sortedascendingcellstyle backcolor="#F4F4FD" /&gt;
          &lt;sortedascendingheaderstyle backcolor="#5A4C9D" /&gt;
          &lt;sorteddescendingcellstyle backcolor="#D8D8F0" /&gt;
          &lt;sorteddescendingheaderstyle backcolor="#3E3277" /&gt;
  
  &lt;SortedAscendingCellStyle BackColor="#F5F7FB"&gt;&lt;/SortedAscendingCellStyle&gt;
  
  &lt;SortedAscendingHeaderStyle BackColor="#6D95E1"&gt;&lt;/SortedAscendingHeaderStyle&gt;
  
  &lt;SortedDescendingCellStyle BackColor="#E9EBEF"&gt;&lt;/SortedDescendingCellStyle&gt;
  
  &lt;SortedDescendingHeaderStyle BackColor="#4870BE"&gt;&lt;/SortedDescendingHeaderStyle&gt;
    &lt;/asp:GridView&gt;
      &lt;asp:SqlDataSource ID="SqlDataSource1" runat="server" 
          ConnectionString="&lt;%$ ConnectionStrings:ora %&gt;" 
          ProviderName="&lt;%$ ConnectionStrings:ora.ProviderName %&gt;" 
  
          SelectCommand="  SELECT A.HESAP_NO, A.TEKLIF_NO1 || '/' || A.TEKLIF_NO2 AS TEKLIF, A.MUS_K_ISIM , 
  B.MARKA, C.SASI_NO, C.SASI_DURUM, D.TAS_MAR, NVL(RISK_SASI(A.TEKLIF_NO1, A.TEKLIF_NO2, C.URUN_SIRA_NO, C.SIRA_NO, :S_TARIH_B),0) AS RISK,
  NVL(MV_SASI(A.TEKLIF_NO1, A.TEKLIF_NO2, C.URUN_SIRA_NO, C.SIRA_NO, :S_TARIH_B),0) AS MV,
  MV_K(A.TEKLIF_NO1,A.TEKLIF_NO2, :S_TARIH_B)/COUNT(*) OVER() AS KV, 'NameCheckBoxField1' = 0x1, 'NameCheckBoxField2' = 0x1, 'NameCheckBoxField3' = 0x1
  FROM S_TEKLIF A,  S_URUN B, S_URUN_DETAY C, KOC_KTMAR_PR D
  WHERE A.TEKLIF_NO1 || A.TEKLIF_NO2 = B.TEKLIF_NO1 || B.TEKLIF_NO2
  AND A.TEKLIF_NO1 || A.TEKLIF_NO2 = C.TEKLIF_NO1 || C.TEKLIF_NO2
  AND B.SIRA_NO = C.URUN_SIRA_NO
  AND C.SASI_DURUM IN ('A','R')
  AND B.DISTRIBUTOR = D.DIST_KOD
  AND B.MARKA = D.MARKA_KOD
  AND B.URUN_KOD = D.TAS_KOD "&gt;
      &lt;/asp:SqlDataSource&gt;
      &lt;br /&gt;
      &lt;asp:Button ID="Calculate" runat="server" onclick="Calculate_Click" 
          Text="Calculate" /&gt;
      &amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;
      &amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;
      &amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;
      &lt;br /&gt;
      &lt;br /&gt;
      &lt;/form&gt;
  &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>