>I want to have all the items into a recorset with only one query like >Select id, reference, component from NOMS where reference = '00004' >but i want not only the primary relations, i want all relations. >Could somebody help a newbie like me?
It can also help to change the way you look at the relationships, and use nested sets. With nested sets you do not record the parent-child relationship but rather the range that a given entity has control of. So instead of having a manager with an ID of 1 and having three employees with a manager field pointing to 1, you have three employees numbered 1,2,3 and the manager has a left_value and a right_value of 0 and 4 respectively. That is an over-generalization, but check the following links. BTW original credit for the idea goes to Joe Celko and I reccommend his book "SQL for Smarties". http://www.sitepoint.com/article/1105 - Tutorial on this that uses PHP http://www.dbmsmag.com/9603d06.html - More detail from Celko http://www.dbmsmag.com/9604d06.html - " http://www.dbmsmag.com/9605d06.html - " http://www.intelligententerprise.com/001020/celko.shtml http://searchdatabase.techtarget.com/tip/1,289483,sid13_gci5 37290,00.html -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
