这个人想出了一些顺序建议，这是一个链接
http://developmenttips.blogspot.com/2008/03/generate-sequential-guids-for-
sql.html
相关代码：
public class SequentialGuid { Guid _CurrentGuid; public Guid CurrentGuid { get { return _CurrentGuid; } } public SequentialGuid() { _CurrentGuid = Guid.NewGuid(); } public SequentialGuid(Guid previousGuid) { _CurrentGuid = previousGuid; } public static SequentialGuid operator++(SequentialGuid sequentialGuid) { byte[] bytes = sequentialGuid._CurrentGuid.ToByteArray(); for (int mapIndex = 0; mapIndex < 16; mapIndex++) { int bytesIndex = SqlOrderMap[mapIndex]; bytes[bytesIndex]++; if (bytes[bytesIndex] != 0) { break; // No need to increment more significant bytes } } sequentialGuid._CurrentGuid = new Guid(bytes); return sequentialGuid; } private static int[] _SqlOrderMap = null; private static int[] SqlOrderMap { get { if (_SqlOrderMap == null) { _SqlOrderMap = new int[16] { 3, 2, 1, 0, 5, 4, 7, 6, 9, 8, 15, 14, 13, 12, 11, 10 }; // 3 - the least significant byte in Guid ByteArray [for SQL Server ORDER BY clause] // 10 - the most significant byte in Guid ByteArray [for SQL Server ORDERY BY clause] } return _SqlOrderMap; } }}
