我正在尝试使用两个日期从数据库中检索数据,但 Visual Studio 抛出语法错误。
以下是使用 sql 查询填充数据集的方法:
public DataSet OrderBetweenDates(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] >= #date1# AND [PurchasedDate] <= #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;
}