Field fname is NOT NULL?
count(*) value differs from count(fname) AFAIR.

Inviato da iPad

Il giorno 01/ago/2013, alle ore 16:20, "ASOrg" <asorg@...> ha scritto:

>
> Dear All
>
> select count(*) from customer ( returns 235384 )
>
> select count(*) from customer where substring(upper(fname) from 1 for 1 ) in ('A','B','C',
> 'D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z') ( returns 187671 )
>
> so there are 47.713 records whose fname started with letter A-Z.
>
> select distinct ascii_val(substring(upper(fname) from 1 for 1 )) from customer where substring(upper(fname) from 1 for 1 ) not in ('A','B','C', 'D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z') ( returns 0, 13, 46 )
>
> select count(*) from customer where ascii_val(substring(upper(fname) from 1 for 1 )) in (0,13,46) ( returns 38197 )
>
> I don't know how to find the other 9516 records.
> Help please ?
>
> Thank you in advance
>
>

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