SQLfast scripts of Case study "Four hours to save the library"
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To run the application, execute script "Library-MAIN", then select
  - "Create the database" to create and initialize the database (_LIB-Create-DB.sql)
  - "Manage the library" to execute the management tasks of the library (_LIBRARY-Main.sql)

The management function calls the following procedures:
  - _LIB-READER-NEW.sql       (create a new reader)
  - _LIB-READER-MODIFY.sql    (modify a reader)
  - _LIB-READER-CONSULT.sql   (consult readers)
     calls: _LIB-CONSULT.sql     (consult a table)
  - _LIB-BOOK-NEW.sql         (create a new book)
  - _LIB-BOOK-CONSULT.sql     (consult books)
     calls: _LIB-CONSULT.sql     (consult a table)
  - _LIB-BORROWING-BORROW.sql (borrow a book)
  - _LIB-BORROWING-RETURN.sql (return a book).

These procedure should not be run independently.

NOTE
   A new version of this application, written in Python, is
   available in the "SQLpy" package "https://bit.ly/3uouH6c". 

