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Consider the following relational schema for a library:
member(memb_no,name,dob) books(isbn,title,authors,publisher) borrowed(memb_no,isbn,date)
Write eh following queries in relational algebra.
a. Find the names of members who have borrowed any book published by "McGraw-Hill". b. Find the names of members who have borrowed all book published by "McGraw-Hill". c. Find the name and membership number of members who have borrowed more than five books published by "McGraw-Hill". d. Find the name and membership number of members who have borrowed more than five different books of that publisher. e. Find the average number of books borrowed per member. Take into account that if a member does not borrow any books, then that member does not appear in the borrowed relation at all.
The library System stores 3 type of informations: Users ( USID, USNAME, USMob, USEmail, USDept,USStartDate, NofBooks). Create the library database schema Structure.
The database application project (DAP) for this course consists of the creation of a fully functional Microsoft Access database application for a real client.
Need a system that networks its 3 campuses in the US and one campus in Singapore. Transaction data for all campuses should be available to all locations. In addition, students should be able to use the Internet to view classes, enroll, register, and ..
Create a database from scratch that contains, at a minimum, the elements listed below
You have a company, specializing in managing technology solutions. you have ben just hired by big firm to execute a well-planned strategy.
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Write a Assignment to study and modify the PostgreSQL source code, with a focus on one of the core modules - the buffer manager
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Create a report which identifies five most expensive bicycles. The report must list bicycles in descending order from most expensive to lease expensive, the quantity on hand for each, and the markup percentage for each.
Write a query to determine the cost of the least expensive part in the part table? Format the returned price in dollars and cents using the correct function.
Developers have noticed that EMP table doesn't have an assigned primary key. EMP_ID column has been selected to be the primary key.
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