MySQL插入到多个表（关系）

Question

tbl_product
Name | Creator | UID | Salerank

tbl_price
Supplier | Price | UID

I want to insert a product and then insert multiple prices into a seperate table. How is it possible to ensure that both tables had the same UID ideally an auto increment field? I will be using PHP alongside MySQL.

Thanks,

J

Answer 1

Make UID an auto_increment primary key on the products table, but just a regular primary key on the prices table (no auto_increment). After you insert itnto products, use the PHP command mysql_insert_id() . This will get the ID generated from the last query, which will be your UID generated on the products table. Assign it a variable and use it in your insert statement on the prices table.

http://php.net/manual/en/function.mysql-insert-id.php

Answer 2

使用GUID作为UID，或者更好的方法是插入您的产品，并使用例如产品名称（假设唯一）插入价格以查找相关产品UID。