Database design is the process of specifying the logical and/or physical parts of a database. The goal of database design is to make a representation of some "universe of discourse" - the types of facts, business rules and other requirements that the database is intended to model.

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MySql Invoice and Subscription Schema

I have an ecommerce db built and I'm adding subscriptions. See the simplified structure below. orders id, customer_id order_items id, order_id, product_id invoices id, order_id subscriptions id, ...
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MySQL log tables design

I have to make 25 modification historic tables from 26 tables. I need a design for each table that could grow more than 75,000,000 of rows. I use InnoDB for 25 tables and 1 with MyISAM. I have one ...