RE: [PHP] MySQL advanced select?
| From: | Magnus Hammar | Date: | Fri, 08 Sep 2000 12:22:24 +0000 |
| Subject: | RE: [PHP] MySQL advanced select? | ||
| Groups: | php.general | ||
| Request: | Send a blank email to php-general+get-15863@lists.php.net to get a copy of this message | ||
>oh.. silly me, should have read the subject too. ;-)
=)
>Still .. are we talking about column names being different, or the values
>for specific columns? Maybe paste your table definitions and explain more
>specific what you want compared.
The value inside the fields that are different form the values inside the
other fields in an other table, but in the same database.
Say that 10 times in a row ;)
It's hard to explain, but what I'm looking for is this:
--------------------------------------------------------
Database: userdata
Table: tUserEmail
Fields: userid int(11),email varchar(255)
Table: tEmail
Fields: mailid int(11), email_copy varchar(255), active tinyint(1)
What I want is to select all values in "email" in table "tUserEmail" that
is _not_ the same as any value in field "email_copy" in the table
"tEmail".
I want to sync the tables without having to select _all_ fields and then
check if the value is the same or not.
Do you know what I'm trying to say here? :)
Thanks.
/Magnus
--------------------------------
>> > How do you select all fields in table 1 that are not the same as the
>> > fields in table2?
>> > Do you know what I mean? =)
>> >
>> > For example:
>> > I want to select all e-mails in table tMail, field "mail", that are not
>> > the same as in tUsersMail field "mail2".