15 | | * Person(**__id_person__**, **name**,** surname**, address, town, **phone_num**) |
16 | | * Employee(**__id_person__***(Person), **id_library***(Library), **position**) |
17 | | * Member(**__id_person__***(Person), **id_school***(SchoolType), **id_membership***(MembershipType), **id_library ***(Library), **birth**, **email**, **pass**) |
18 | | * Library(**__id_library__**, **name**, **city**) |
19 | | * SchoolType(**__id_school__**,** school_type_name**) |
20 | | * MembershipType(**__id_membership__**, **mem_stype_name**) |
21 | | * PriceList(**__id_price__**, **id_membership***(MemberShipType), **price**) |
22 | | * Genre(**__id_genre__**, **name**) |
23 | | * Writer(**__id_writer__**, ** name**) |
24 | | * Review(**__id_review__**, **id_book***(Book), **rate**, **rent_num**) |
25 | | * Room(**__id_room__**, **id_library***(Library), **places**, **free_places**) |
26 | | * OnlineDownload(**__id_onlineDown__**, **id_book***(Book), **id_person_member***(Member)), |
27 | | * ReservationBook(**__id_resBook__**, **id_book***(Book), **is_person_member***(Member), **take_date**, **return_date**) |
28 | | * Book(**__id_book__**, **id_writer***(Writer), **id_library***(Library), **name**, **book_num**, **if_free**, **book_price**, **book_price_late**) |
29 | | * ReservationPlace(**__id_resRoom__**, **id_room***(Room),** id_person_member***(Member),** date**, **duration**) |
30 | | * Membership_of_SchoolType(**__id_membership__***(MembershipType), **id_school***(SchoolType)) |
31 | | * Who_Wrote_Book(**__id_book__***(Book), **id_writer***(Writer)) |
| 15 | * Person: (**__id_person__**, **name**,** surname**, address, town, **phone_num**) |
| 16 | * Employee: (**__id_person__***(Person), **id_library***(Library), **position**) |
| 17 | * Member: (**__id_person__***(Person), **id_school***(SchoolType), **id_membership***(MembershipType), **id_library ***(Library), **birth**, **email**, **pass**) |
| 18 | * Library: (**__id_library__**, **name**, **city**) |
| 19 | * SchoolType: (**__id_school__**,** school_type_name**) |
| 20 | * MembershipType: (**__id_membership__**, **mem_stype_name**) |
| 21 | * PriceList: (**__id_price__**, **id_membership***(MemberShipType), **price**) |
| 22 | * Genre: (**__id_genre__**, **name**) |
| 23 | * Writer: (**__id_writer__**, ** name**) |
| 24 | * Review: (**__id_review__**, **id_book***(Book), **rate**, **rent_num**) |
| 25 | * Room: (**__id_room__**, **id_library***(Library), **places**, **free_places**) |
| 26 | * OnlineDownload: (**__id_onlineDown__**, **id_book***(Book), **id_person_member***(Member)) |
| 27 | * ReservationBook: (**__id_resBook__**, **id_book***(Book), **is_person_member***(Member), **take_date**, **return_date**) |
| 28 | * Book: (**__id_book__**, **id_writer***(Writer), **id_library***(Library), **name**, **book_num**, **if_free**, **book_price**, **book_price_late**) |
| 29 | * ReservationPlace: (**__id_resRoom__**, **id_room***(Room),** id_person_member***(Member),** date**, **duration**) |
| 30 | * Membership_of_SchoolType: (**__id_membership__***(MembershipType), **id_school***(SchoolType)) |
| 31 | * Who_Wrote_Book: (**__id_book__***(Book), **id_writer***(Writer)) |