hello & thanks 4 reply

ok, i think i understand,
i would like that you, if not prob., write the whole solution once with
index on words



Igor Tandetnik wrote:
> 
> "vl.pavlov" <[EMAIL PROTECTED]> wrote
> in message news:[EMAIL PROTECTED]
>> there is expression:
>>
>> select count(number) from words where word = bla
>>
>> which, if i am right, searches through whole table
> 
> Not if you have an index on "word". And you need a unique index anyway 
> for "insert or replace" part to work (replace only kicks in if insert 
> would have violated a uniqueness constraint).
> 
> Oh, and the subselect should use "select number ...", not "select 
> count(number) ...".
> 
> Igor Tandetnik
> 
> 
> 
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