My table (SQL Server 2008) has 1 million+ records, when I try to order records by datetime, it takes 1 second, but when I order by ID (int), it only takes about 0.1 second.My table (SQL Server 2008) has 1 million+ recor
My table (SQL Server 2008) has 1 million+ records, when I try to order records by datetime, it takes 1 second, but when I order by ID (int), it only takes about 0.1 second.My table (SQL Server 2008) has 1 million+ recor