Tony,
you forgot the NULL entries.
Add the result of:
select count(*) from individu where type2 is null
JLL
tony wrote:
>
> Stange one
>
> select count(*) from individu
>
> count
> 18417
>
> select count(*) from individu where type2 like 'a%'
>
> count
> 12619
>
> select count(*) from individu where type2 not like 'a%'
>
> count
> 81
>
> Clues?
>
> Cheers
>
> Tony Grant
>
> --
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