I joined a couple of fields into a single index and tried your 
suggestion below, and got the query down to 860ms which is more than 
acceptable. Thanks Liz.

On 19/06/2016 11:21 PM, Liz McGuire wrote:
>
> SELECT d.*
> FROM adb_street s
>       INNER JOIN adb_address_detail d
>             ON d.adb_address_detail.street_uid = s.adb_street.street_uid
> WHERE s.adb_street.street_name like 'THEOD%'
>
> ...and that video may have other ideas for you.
>
> You could try an index with street_uid first and street_name second, to
> see if that will speed matters - I'm just not sure how MS SQL Server
> uses indexes, so I don't know if they key and a separate index on
> street_name will work, or if both need to be in one index, or what. This
> is why I keep telling the bosses we need a DBA.
>
> Liz
>