-| Field | Description | Type | Null | Key | Default | Extra |
-| ----- | ----------- | ---- | ---- | --- | ------- | ----- |
-| uid | User ID | mediumint unsigned | YES | PRI | | |
-| code | Recovery code string | varchar(50) | YES | PRI | | |
-| generated | Datetime the code was generated | datetime | YES | | | |
-| used | Datetime the code was used | datetime | NO | | | |
+Fields
+------
+
+| Field | Description | Type | Null | Key | Default | Extra |
+| --------- | ------------------------------- | ------------------ | ---- | --- | ------- | ----- |
+| uid | User ID | mediumint unsigned | NO | PRI | NULL | |
+| code | Recovery code string | varchar(50) | NO | PRI | NULL | |
+| generated | Datetime the code was generated | datetime | NO | | NULL | |
+| used | Datetime the code was used | datetime | YES | | NULL | |
+
+Indexes
+------------
+
+| Name | Fields |
+| ------- | --------- |
+| PRIMARY | uid, code |
+
+Foreign Keys
+------------
+
+| Field | Target Table | Target Field |
+|-------|--------------|--------------|
+| uid | [user](help/database/db_user) | uid |