reserves
| 欄位 | 型態 | 範例 |
| borrowernumber | int(11) | |
| reservedate | date | |
| biblionumber | int(11) | |
| constrainttype | char(1) | |
| branchcode | varchar(4) | |
| notificationdate | date | |
| reminderdate | date | |
| cancellationdate | date | |
| reservenotes | text | |
| priority | smallint(6) | |
| found | char(1) | |
| timestamp | timestamp | |
| itemnumber | int(11) |
