Hi I have three linked tables : store, catalogue, and sales
store : ID_store, store, date catalogue : ID_product, product sales : ID_sales, ID_store, ID_product, product, quantity I would like a view giving me ALL the products in catalogue with the quantity per store if the store has this product, and zero or null (or anything) if the store does not have it ex.: store ID_store 1 2 store new york paris date 2003-10-10 2003-10-11 catalogue ID_product 1 2 3 product table chair lamp sales ID_sales 1 2 3 ID_store 1 1 2 ID_product 1 2 3 product table chair lamp quantity 3 2 4 look for product and quantity in store new york view product table chair lamp quantity 3 2 0 look for product and quantity in store Paris view product table chair lamp quantity 0 0 4 thanks in advance Philippe -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]