Computers and Technology, 05.12.2019 23:31 nicholasryanencarnac
Write relational algebra queries for the two specifications below using the relations also defined below: a. retrieve the names of customers who have ordered parts costing less than $150.00.b. retrieve the names of customers and the partname of orders with a qty greater than 10.parts(pno, pname, qoh, price, olevel)customers(cno, cname, street, zip, phone)employees(eno, ename, zip, hdate)zip_codes(zip, city, state)orders(ono, cno, eno, received, shipped)odetails(ono, pno, qty)where qoh stands for quantity on hand and olevel stands for (re)order level. the p, c, e and o single letter prefixes for attributes refer to the parts, customers, employees and orders relations, respectively. the other attribute names are self-explanatory.
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Write relational algebra queries for the two specifications below using the relations also defined b...
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