검색 조건으로 페이지를 나누는 저장 프로세스

ALTER PROCEDURE [dbo].[OrdersListByCondition]   
  @pagesize int,
  @pageindex int,
  @condition nvarchar(1000),
  @totalcount int output
AS
BEGIN

declare @sql nvarchar(3000)
declare @countSql nvarchar(3000)


if @condition=''
begin
--         *   
set @sql=' select *
 from 
 (select top  '+cast(@pagesize as nvarchar(30)) +' * from  E_Orders  where OrderID not in (select top ('+cast(@pagesize as nvarchar(30)) +' *('+cast(@pageindex as nvarchar(30)) +'-1)) OrderID from E_Orders  order by OrderID desc) order by OrderID desc) o left join E_OrdersCommodity oc on o.OrderID=oc.OrderID  order by OrderID desc'

set @countSql='select @a=count(1) from E_Orders'
end
else
begin 
set @sql=' select *
 from 
 (select top  '+cast(@pagesize as nvarchar(30)) +' * from  E_Orders  where OrderID not in (select top ('+cast(@pagesize as nvarchar(30)) +' *('+cast(@pageindex as nvarchar(30)) +'-1)) OrderID from E_Orders where '+ @condition+' order by OrderID desc) and '+ @condition+' order by OrderID desc) o left join E_OrdersCommodity oc on o.OrderID=oc.OrderID  order by OrderID desc'

set @countSql='select @a=count(1) from E_Orders where '+ @condition+''

end

exec(@sql)

execute sp_executesql @countSql,N'@a INT output',@totalcount output

END

 /// <summary>
    ///   SQL    
    /// </summary>
    /// <param name="strOrderStatus"></param>
    /// <param name="strOrderID"></param>
    /// <param name="strMallName"></param>
    /// <param name="strContacts"></param>
    /// <returns></returns>
    private string[] GetConditionArray(string strOrderStatus,  string strOrderID, string strMallName, string strContacts)
    {
        List<string> list = new List<string>();
        if (strOrderStatus != "")
        {
            list.Add("OrderStatus='" + strOrderStatus + "'");
        }if (strOrderID != "")
        {
            list.Add("OrderID='" + strOrderID + "'");
        }
        if (strMallName != "")
        {
            list.Add("MallName='" + strMallName + "'");
        }
        if (strContacts != "")
        {
            list.Add("Contacts='" + strContacts + "'");
        }
        return list.ToArray();
    }