Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Decompose the table with the following description and functional dependencies into a set of equivalent tables normalized to 3NF or BCNF.
This database stores records from a (very organized) Crazy Cat Person. It contains vital statistics and visual identifying information about the cats. It also contains information about the cats' vet(s) and any supplements or medications shehas prescribed. It only tracks current medications and supplements.
Data:
catName: the name of a cat catBirth: the cat's date of birth, or an estimate thereof catAdoption: the cat's date of adoption by the Crazy Cat Person color: the main color of the cat's fur furPattern: the pattern of the cat's fur (i.e. "striped") furType: the type of the cat's fur (long or short) vetName: the name of the vet who cares for the cat and prescribes supplements or medications office: the name of the vet's office address: the address of the vet's office phone: the vet's phone number supplement: the name of a prescribed supplement or medication dose: the prescribed unit dosage of a supplement/medication sig:the dosing recommendations, i.e. how many of the unit doses, how often, and by what route is the supplement/medication to be given
Functional dependencies:
catName → catBirth, catAdoption, color, furPattern, furType vetName → office, address, phone supplement, catName → dose, sig, vetName
Describe identifying relationship? Identifying relationship: It is relationship among strong entity and a weak entity it is represented through a doubly outlined diamond in C
Explain the Dynamic Hashing Techniques There are two methods in it: extendible hashing - stores an access structure in addition to the file, and therefore is somewhat identica
An employee record has the following structure struct employee { int eno; char name[22]; float salary; char dept[10];}; (i) Calculate the record size R in bytes.
What is data independence? Data Independence: Techniques which permit data to be changed without affecting the applications in which procedure it. There are two types of data
Which is a legal expression in SQL? SELECT NAME FROM EMPLOYEE is a legal expression in SQL.
How does a query tree represent a relational algebra expression? Discuss any three rules for query optimisation, giving example as to when should each rule be applied. Ans
What is a SELECT operation? The select operation selects tuples that please a given predicate. We use the lowercase letter σ to denote selection.
In this programming assignment, you will develop a simple database of student records. Here are the requirements: 1) A student record contains a name and a number. We assume tha
If the insertion violates one or more constraints, then two alternatives are available: Default option: - Insertion can be discarded and the reason of refusal can also be ex
Consider the following database schema: STAFF(StaffNo, fName, lName, Position, sex, dob, branchNo) BRANCH(BranchNo, Street, City) Assume the following for the above database
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd