Ricardo, you're asking how to normalise your database. There are links to some good intro tutorials at http://www.artfulsoftware.com/dbresources.html
PB ----- > Hi, > > I'm having problems trying to figure which is the best way to solve a design > : > > I'm designing a delivery program with php and mysql, and I'm having troubles > with some tables, > my problem is with the recipes, the recipes are divided into two tables one > with a recipe id and description the other detailing the ingredients, of > each particular recipe, that's where my problem starts because each > ingredient is not unique and even it appears in many recipes, and another > thing is every time and item is ordered their correspondent > recipe ingredients are added , ie. pizza has a code 11, recipe has code 01 > then all the ingredients in the recipe table > have different ingredient code each, and are related by the recipe code 01, > then each separate item must be counted, > and added to the ingredients general daily totals, I mean pizza uses 2 > tomatoes then the general total will show two tomatoes and each other > ingredient. There are also some combined recipes : Pizza with a special > sauce, then this item has to query two parts of the same table, say code 12 > is Pizza with a combined sauce of mushrooms and milk, and pineapples, so > each ingredient must be added to the general total. I need help with the > design because I don't want to have database anomalies. > > Thank you all, > > Merry Xmas > Rick --------------------------------------------------------------------- Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
