Given a fileserver change, I needed a way to get all the server names for Receive Locations in the BizTalkMgmtDb. The InboundTransportURL would be in the form of \\servername\somepath. This query assumes a valid charindex value — often a dangerous assumption. This did the trick nicely!
select [id], [name], [ActiveStartDT], [InboundTransportURL], replace(left([InboundTransportURL], charindex('\', [InboundTransportURL], 3)), '\', '') from adm_ReceiveLocation rl (nolock) where inboundtransporturl like '%\\%' order by replace(left([InboundTransportURL], charindex('\', [InboundTransportURL], 3)), '\', '')