====== Table Types ====== Within the **Charity Radar** database, all tables use the ''Aria'' storage engine. There are four types of table: === Lookup Tables === Tables that are used to hold static data such as country codes or types of email address. === Standard Tables === Tables that hold data that changes but where we don't want to record changes to the data within the database. === Link Tables === Standard tables used to link two other tables to form a many-to-many relationship. === Versioned Tables === Tables that record the changes to the data including when it was changed, who changed it and why it was changed. See [[versioning]].