SQL查询检索数据使用日期作为where子句

Question

我想使用以下sql查询从数据库检索数据，但这是行不通的。我正在尝试根据输入日期获取数据。数据库中的日期格式为03/03/2013。以下查询正确的问题。

public DataSet OrderByDate(string date1, string date2) 
     { 


      // string connString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\\Users\\Amrit\\Desktop\\Database.accdb ;Persist Security Info=False;"; 
      DataSet dataSet = new DataSet(); 
      OleDbConnection oleConn = new OleDbConnection(connString); 

      try 
      { 
       oleConn.Open(); 
       string sql = "SELECT Order.OrderNumber, (Customer.Title +SPACE(2)+ Customer.CustomerName) as [Customer Name], Customer.CustomerEbayname, Customer.EmailAddress, Customer.PhoneNumber, (Customer.Address1 + SPACE(2) + Customer.Address2 + SPACE(2)+ Customer.City + SPACE(2) + Customer.PostCode + SPACE(2) + Customer.Country) as Address, Order.ItemPurchased, Order.PurchasedDate, Order.TotalPrice FROM Customer INNER JOIN [Order] ON Customer.[CustomerID] = Order.[CustomerID] WHERE [PurchasedDate] BETWEEN #date1# AND #date2#";     OleDbDataAdapter dataAdapter = new OleDbDataAdapter(sql, oleConn); 
       dataAdapter.Fill(dataSet, "Customer"); 
      } 
      catch (Exception ex) 
      { 
       MessageBox.Show("An exception has been occured\n" + ex.ToString()); 
       Console.WriteLine(ex.ToString()); 
      } 
      finally 
      { 
       oleConn.Close(); 
      } 
      if (dataSet.Tables.Count <= 0) 
       return null; 
      else 
       return dataSet; 
     } 

Answer 1

，因为使用的是Access，而不是单引号包裹的日期与#。

SELECT [Order].[Order]Number, 
     (Customer.Title +SPACE(2)+ Customer.CustomerName) as [Customer Name], 
     Customer.CustomerEbayname, 
     Customer.EmailAddress, 
     Customer.PhoneNumber, 
     (Customer.Address1 + SPACE(2) + Customer.Address2 + SPACE(2)+ Customer.City + SPACE(2) + Customer.PostCode + SPACE(2) + Customer.Country) as Address, 
     [Order].ItemPurchased, 
     [Order].PurchasedDate, 
     [Order].TotalPrice 
FROM Customer 
     INNER JOIN [Order] 
      ON Customer.[CustomerID] = [Order].[CustomerID] 
WHERE [PurchasedDate]= #" + date + "#