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Consider the relations given below Borrower (id_no, name)Book (accno., title, author, borrower_idno) (a) Define the above relations as tables in SQL forming real world assumptions about the kind of the fields. Define the primary keys and the foreign keys. (b) For the above relations answer the subsequent queries in SQL What are the titles of the books borrowed through the borrower whose id-no in 365.(i) Find out the numbers and names of borrowers who have borrowed books on DBMS in ascending order in id_no.(ii) List the names of borrowers who have borrowed at least two books.
a) Create table Book (Accno int Primary Key, title char(30), author char(30), borrow-idno int references Borrower_id.no ); Create table borrower (id-no int Primary Key, name char(30) ); b) (i) Select title from Book, Borrower where Borrower.id_no =Book.borrower-idno and borrower.id_no = 365 (ii) Select id_no, name from Borrower, Book where Borrower.id_no= Book.borrower_idno and title= ‘DBMS' order by id_no asc; (iii) Select name from Borrower, Book where Borrower.id_no = book.borrower_id_no having count (*) > 2
Data Base Management System 1. Draw the Architecture of MySQL and explain about its subsystems briefly. 2. Elaborate with the help of an example the concept of Primary key a
Oracle & Distributed Databases 1. Differentiate between PL/SQL functions and procedures. 2. Draw the diagram of logical structure of oracle database and explain it in brief.
Which two files are used during operation of the DBMS? Data dictionary and transaction log are two files used during operation of the DBMS.
Describe an data dictionary? A data dictionary is a data structure which keeps meta data about the structure of the database ie. the schema of the database.
Attribute Preservation This is a easy and obvious necessity that includes preserving all the attributes that were there in the relation that is being decomposed.
i need to implememnt a treee based mining algorithm. do you have an expert that can do that?
Give detail description on Transactions. - Using transactions we can group all SQL commands into a single unit. - Transaction begins with some task and finishes only when a
After the completion of the logical model the physical model is to be made. The oracle 10 G will be used as a database server and all the tables with their column are created and i
What is DBMS and what are functions of DBMS? DBMS consist of collection of integrated data and set of program to admission those data. The functions performed by a typical
Question 1 Define OLTP? Explain the Differences between OLTP and Data Warehouse Question 2 What is Architecture? Explain various components involved in it Question
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