| Field | Type | Default | Description |
|---|---|---|---|
| category_id | int (11) | NOT NULL | PRIMARY KEY - Auto increment field to hold unique ID |
| journal_main_id | int (11) | NOT NULL | Refers to the id in table journal_main for a transaction |
| qty | float | 0 | Qty of the sku used from the history table |
| inventory_history_id | int (11) | NOT NULL | Refers to the history id of when the item was placed into stock. |