converting sql server rowversion to long or ulong?

Question

What is the proper type for the rowversion (timestamp) data type?

I know it is 8 bytes but i cannot find a link in MSDN which tell if it is a signed or unsigned long

Answer 1

Neither will work correctly for purposes of comparing timestamp/rowversion values, if you're running on an x86 family CPU, because of endian. The first byte of a timestamp is most significant, but not so for little endian integer types.

Call Array.Reverse(ts) before calling BitConverter.ToUInt64(ts), and for the other direction, after calling BitConverter.GetBytes(tsUInt64)