They are user defined properties. -----Original Message----- From: Jay Pipes [mailto:[EMAIL PROTECTED] Sent: Tuesday, August 01, 2006 8:11 PM To: Robert DiFalco Cc: mysql@lists.mysql.com Subject: Re: Query Help for Loosely Couple Properties
On Tue, 2006-08-01 at 16:23 -0700, Robert DiFalco wrote: > I have a table that contains properties that can be associated with > any table whose primary key is a LONG. Lets say that there is just one > kind of property. The table looks something like this: > > TABLE StringVal > REF_ID BIGINT // row to associate property with > TYPE_ID BIGINT // type of string property > VAL VARCHAR // property value > > P_KEY( REF_ID, TYPE_ID ) > > There is another table to represent a specific StringVal type along > with its default value: > > TABLE StringType > ID BIGINT // The TYPE ID > NAME VARCHAR // The unique name of this property > DEF_VAL VARCHAR // The default value of this property Actually, the rub is that you are not using specific columns for specific entity attributes, and are pretty much storing everything in one gigantic table. Any particular reason for this? For instance, why not have a column called "color", instead of overcomplicating things? -jay -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
