Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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- Database Systems please help me answer this question I will give you a good rating Thank you!arrow_forwardWrite an SQL query to fetch the different projects available from the EmployeeSalary table.arrow_forwardBelow is “Book Order,” the only table in library management system’s database. The design of “Book Order” as you may tell is in the zero normal formal form, you as the database designer want to convert the design into the third normal form. Order ID Special order date Customer ID Customer last name Customer First name Customer birth date Book ISBN1 Book Title 1 Book Author 1 Book publication year 1 Book ISBN2 Book Title 2 Book Author 2 Book publication year 2 Store ID Store name Store location Special order status Book Order(Order ID, Special order date, Customer ID, Customer last name, Customer First name, Customer birth date, Book ISBN1, Book Title 1, Book Author 1, Book publication year 1, Book ISBN2, Book Title 2, Book Author 2, Book publication year 2, Store ID, Store name, Store location, Special order status)arrow_forward
- Express the following SQL code in Relational Algebra form.SELECT *FROM COURSEWHERE (COURSE.COLLEGE <> ’Business’OR COURSE.COLLEGE <> ’Engineering’)AND COURSE.CREDIT = ’U’;arrow_forwardSQL Query Relational Algebra select avg(customer.age) as "avg_age" from AVG(avg_age) (customer) customer; 1. Select customer phone, customer.address, customer.fullname from customer where exists (select * from billing where billing.cid = customer. Customer id); 2. Select * from customer where customer.address in ('Ibri'); 3. Select billing.bill id from billing Group by bill id Having count (case when billing.b status = 'REJWCTED' then 1 end) >1; select * from customer order by full name, age;arrow_forwardWrite an SQL query to fetch the EmpId and FullName of all the employees working under Manager with id – ‘986’.arrow_forward
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