Re: When is a blank not a null or ''

mike wrote:

>I have the following query (I have removed all nulls from the field as
>test)
>
>SELECT first_name,work_email FROM tb_contacts WHERE
>tb_contacts.work_email <>'';
>
>However I get loads of blank email addresses coming up
>
>anyone any ideas
>
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Are NULL in work_email possible ?
If yes you should you have to use.

SELECT first_name,work_email FROM tb_contacts WHERE
tb_contacts.work_email <>''
AND
tb_contacts.work_email IS NOT NULL;

By the was in Oracle there is no difference between empty
CHAR- or VARCHAR-column and NULL- CHAR or VARCHAR-columns.
But that is scpecial to Oracle.