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!
1. Determine the set of minimal functional dependencies for the following data.
The local bakery, Happy Cakes, needs your help designing a database that will support a kiosk in the store for customers tomake special orders. Orders are limited to cakes and cannot include cookies, pies, or pastries. Several flavors each of cake and frosting are available, and they can be made in a number of different sizes and shapes. Combinations of cake and frosting flavors are considered cake styles, and there will be a photograph of each style. All photographs will be taken with one piece cut from the cake, in order to make the interior visible.All cakes can be customized with decorations and messages (one type of decoration and one message per cake) which have a main color as requested by the customer. Each order will include customer and cake information as well as the date that the customer needs the cake.
Data:
cakeFlavor: the flavor of the cake frostingFlavor: the flavor of the frosting style: one of the typical combinations of cake and frosting flavors picture: the filename of the picture of the cake style shape: the shape of the cake size: the size of the cake (diameter for rounds, length-by-width for rectangles) layers: the number of layers decoration: the type of decorations on the cake color: the main color of the cake's decorations message: the message that will be written across the finished cake | orderNumber: the identification number for an order orderDate: the date that the cake is needed customerName: the customer's name (only one customer allowed per order)
What are the properties in a relation ? In a relation Ordering of rows is immaterial and No two rows are identical.
growing phase and shrinking phase are disjoint, why ?
Candidate Key: In a relation R, a candidate key for R is a subset of the set of attributes of R, which have the differnt two properties: (1) Uniqueness: N
A relation has: Relational Schema Relation instance Relational Schema: A relational schema shows the relation's name, its attributes and the domain of every a
Before we talk about the relational model in more detail, let us first define some very basic terms used in this model. Tuple Every row in a table shows a record and is cal
Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4
We define a view in SQL through using the create view command. To describe a view, we must provide the view a name and must state the query in which computers the view. The form of
State the functional approach of object oriented methods Moving from a functional approach to an object oriented one needs a translation of functional model elements into objec
a) Suppose we updated the catalog tables in real time, that is, after every update, insert, or delete SQL statement were executed-rather than only running RUNSTATS once every few
give some example real-life situations where DBMS are most suiitabe
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