Re: multiple fields all unique?

From: Date: Thu, 05 Feb 2004 01:33:36 +0000
Subject: Re: multiple fields all unique?
References: 1 2 3 4 5  Groups: php.db 
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Jas wrote:
John W. Holmes wrote:
From: "Jason Gerfen" <jason.gerfen@scl.utah.edu>
Yeah, I have never used a unique field for the database, and you are right it is a mysql db.
Now is a good time to do it the right way, then...
Yes definately, I am trying to convert my exisiting fields to a unique type and am having no luck what-so-ever. This is the table format: +----------+--------------+------+-----+---------+----------------+
| Field    | Type         | Null | Key | Default | Extra          |
+----------+--------------+------+-----+---------+----------------+
| id       | int(11)      |      | PRI | NULL    | auto_increment |
| hostname | varchar(100) |      |     |         |                |
| mac      | varchar(100) |      |     |         |                |
| ip       | varchar(100) |      |     |         |                |
| vlan     | varchar(100) |      |     |         |                |
+----------+--------------+------+-----+---------+----------------+ 5 rows in set (0.00 sec) and this is the command I am tying to run to modify the hostname, mac & ip fields to unique. alter hosts add unique mac;
alter hosts add unique(mac); -- ---John Holmes... Amazon Wishlist: www.amazon.com/o/registry/3BEXC84AB3A5E/ php|architect: The Magazine for PHP Professionals – www.phparch.com

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