moving VM across sites (another vcenter)

Hi Guys,

I have been reading around moving VM across esxi host or vcenter.

ultimately there are 2 ways we can do it, either we scp it or we use the method of OVA / OVF to export, copy then deploy.

SCP will definitely work but it moves the thick drive instead of the thin drive.

I am having 2 TB thick disks with the used of 400GB of used diskspace.

I going to move the production server with database in there.

so my question are:

1) Is the database will continue to work if we use OVA/OVF method?

2) Anybody tried OVA method on Sybase, MS SQL servers?