A list containing four data frames reflecting library management database.
Format
A list of four data frames:
books - books on store
- isbn
book ISBN number
- title
book title
- genre
comma separated book genre
- publisher
name of book publisher
- author
name of book author
- copies
total number of book copies on store
borrowers - registered library members
- id
member unique id
- registered
date the member joined library
- address
member address
- name
full member name
- phone_number
member phone number
- program
membership program type (standard, premium or vip)
issues - borrowed books events
- id
unique event id
- borrower_id
id of the member that borrowed the book
- isbn
is of the borrowed book
- date
date of borrow event
returns - returned books events
- id
event id equal to borrow issue id
- date
date of return event