TASK 1: SuppliersUsing domain and tuple relational calculus, find:1. Find the sids of suppliers who supply some red or green part.2. Find the sids of suppliers who supply some red part or are at „Koprska cesta 25".3. Find the sids of suppliers who supply every part.4. Find the sids of suppliers who supply every red part.5. Find the sids of suppliers who supply every red or green part.6. Find the pids of parts supplied by at least two different suppliers.RelationRelational schemaSuppliersSUPPLIERS(sid, sname, address)PartsPARTS(pid, pname, color)CatalogCATALOG(#sid, #pid, cost)

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Database Systems: Design, Implementation, & Management

12th Edition

ISBN:9781305627482

Author:Carlos Coronel, Steven Morris

Publisher:Carlos Coronel, Steven Morris

Chapter8: Advanced Sql

Section: Chapter Questions

Problem 18RQ

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Instructions: Create a complete ERD in Crow's Foot notation that can be implemented in the relational model using the descriptions below. The attributes required: Activity's ID, Activity's Title, Activity's description, Child's ID, Child's firstname and lastname, Child's Birthday, Parent's ID, Parent's number, Parent's address. The business rules are: An activity may or may not have a child signed up An activity may have many children signed up A child must have an activity A child may have many activities A child must have a parent A parent must have a child A child may have many parents A parent may have many children To submit: Write your answer in a clean sheet of paper and upload a picture of it to dropbox

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