>Howdy,
>I'm using VFP5.0a.
>
>I've got a view that looks like this: create sql view "lvclientcharges" as select trim(clast)+', '+trim(cfirst),csac_id,chosp_id,dbirth,dcontact,nclient_id from clients where nclient_id in (select nclient_id from charge_visits) order by clast,cfirst
>
>The Clients table has 49,000ish records and has indexes on the nclient_id and deleted() and cfirst and clast fields - to name a few. The Charge_visits table has 41,000ish records with indexes on nClient_id and deleted() also to name a few. This view takes at least 1 minute to run. I'd like to speed it up. Any ideas?
>
>I've tried just creating a view with an inner join on these two tables, but that's even slower...


Some ideas:

1. Leave the TRIM(...)s for the client side; that is, SELECT CLAST,CFIRST and do the trimming in your client program.

2. Instead of ordering on the server side, index the view in your program.

3. When I have slow SELECTs, I try separating them. Here, you might have a view with SELECT DISTINCT NCLIENT_ID FROM CHARGE_VISITS, and then define your SELECT so it (inner) joins this view with CLIENTS.

HTH!