>>>
>>>You should have indexes on:
>>>'koers_hist_tot.dat_krs',
>>>'fondsen.fonds_cd',
>>>'koers_hist_tot.fonds_cd'
>>
>>But if I index on fondsen it would take some time, so what is the use of this?
>
>It's supposed to be done during database design, i.e. index already exists when you run query.

Oh I see, thanks.