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Suppose we have a database for a library system composed of the following relations; Library ( library# , library name, library address ) [ the
Suppose we have a database for a library system composed of the following relations;
Library library# library name, library address the key is library#
Reader reader# reader name, reader type, reader addressthe key is reader#
Document document# document title, document type, document descriptorsthe key is doc ument#
Copy document# copy# library# copy location, copy statusthe key is document# copy# copy status can be availableor borrowed
Borrowing reader# document# copy# date borrowed, date returnedthe key is document# copy# date borrowed
Express the following queries in Algebra to Calculus and SQL all
pi sigma rho : cap cup
List all the document copies, along with the library that has them document# copy# library# copy location
List the documents that the reader John has.
List the documents not available in any library.
List the documents available in every library.
Which document is the most borrowed?
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