employee (person_name, street, city) works (person_nате, соmpanyлaте, salary) cоmpany (compaпy лате, сity) тапages (personлате, тапаgerлате) Figure 8.8 Relational database for Exercise 8.6.
Q: What is data structure? What is abstract data type? Use an example to explain your answer.
A: Programs: Programs are used to provide instructions to the computer system. The main objective of…
Q: An abstract data type (ADT) is a data structure which is defined in terms of other data structures,…
A: Given ADTs provide what advantages?
Q: Type of data structures, data values of different types are grouped and stored. Which of the…
A: Data structure is a unique format for managing, processing, retrieving, and storing data. In…
Q: Discuss the concept Data Abstraction.
A: Data abstraction is the reduction of a particular body of data to a simplified representation of the…
Q: I need help with relational models.
A: Solution - In the given question, we have to discuss about the relational models.
Q: What is the purpose of leaving a data object out of a data model?
A: The above question is answered in step 2 :-
Q: 1. Differentiate between Chained and Nested Relational operation with example. 2. Differentiate…
A: The following solutions are
Q: What do you think about data hiding, data encapsulation and data binding? Elaborate
A: Data hiding Data hiding _concern about data security along with hiding complexity. Data Hiding…
Q: What is data-structure? Describe the types of Data Structures?
A: Data Structure: The data structure can be defined as the data element group, providing an effective…
Q: Store the following fields for a library database: AuthorCode, AuthorName, BookTitle,…
A: Every database has certain entities and certain attributes associated with those entities. Library…
Q: Sets, maps, and stacks can be useful data structures for computer applications. Contrast the use of…
A: An data structure is a specific organization for putting together, handling, recovering and putting…
Q: Differentiate between two different approaches that may be used to solve the issue of internal data…
A: Start: The difficulty with internal data structures is described here, along with two possible…
Q: Safe Datalog Rule: A Datalog rule is of the form:p :- q1, ..., qn. where n>0 and p is a positive…
A:
Q: ER Modeling Suppose you are given the following requirements for a simple database for the…
A: Database: Each and every organization contains a certain amount of data, all these need to be…
Q: use c++ to answer the folloing two question 1. implement a city database using a BST to store the…
A: Given: use c++ to answer the folloing two question 1. implement a city database using a BST to store…
Q: A "composite data type" differs from a "atomic data type" in how it is defined.
A: A data type is a property that tells a computer system how to interpret the value of a piece of…
Q: What are the three different levels of data abstraction?
A: The solution to the given question is: The three levels of data abstraction are listed below: Inter…
Q: Multiple Inheritance happens when a class has more than one sub-class. This problem can be observed…
A: Solution : The answer is False
Q: self-schema
A: How They Form. Our underlying self-diagrams start to frame in youth dependent on input from…
Q: What are the three degrees of data abstraction that are available?
A: Data abstraction: Data abstraction is the process of reducing a specific set of data to a condensed…
Q: Explain about Inorder and Postorder .
A: In this question we have to explain the concept of inorder and postorder..inorder an postorder both…
Q: Discuss the data structure queue and its fundamental operations. Give an illustrative example,…
A: The Queue is open at both ends. One end is always used to insert data and the other is used to…
Q: Why is it that a data object isn't included in a data model if it's supposed to be there?
A: GIVEN: Why is it that a data item isn't included in a data model? The Oracle Warehouse Builder data…
Q: Under what conditions does a data object not exist in a data model?
A: the answer is given below:-
Q: Do any data structure components need to be recognized all the way up at the database layer?
A: The solution to the given question is: The organization of data , usually arranged in a hierarchical…
Q: Abstract Data Types (ADTs): What are they and how do they work exactly? What exactly are the…
A: Answer:
Q: For the following database scheme Employee(empNo, fName,IName,address,DOB,sex,position.deptNo)…
A: The following Relational Algebra produces the list of names of all employees who work on the SCCS…
Q: Students' class and test scores should be stored in a database using their index numbers. They just…
A: ANSWER: Index Database: Ordering is a method for upgrading the presentation of an information base…
Q: An example of a hierarchical data structure is what?
A: In hierarchical data structure is one in which data is organized into a tree like structure. Here…
Q: A transaction database is a set of transactions completed in a supermarket database. Each…
A: Table 1 Transaction List of items t1 1,3,4 t2 2,3,5 t3 1,2,3,5 t4 2,5 t5 1,2,3,5…
Q: Why is it not advisable to add a data object to a data model if doing so is not something that…
A: Given: An abstract model known as a data model (or datamodel) combines informational components and…
Q: What is the point of leaving a data object out of a data model?
A: Introduction: The foundation of an object data model based on object-oriented programming is the…
Q: "SUPERMARKET STOCK CONTROL SYSTEM" It is an application made for the employees in the Super Market…
A: there are four entity employee,login,product and supplier. employee has employee…
Q: What is the reason for not include a data object in a data model?
A: GIVEN: What is the reason for not including a data object in a data model?
Q: What do you think about data hiding, data encapsulation and data binding? please Elaborate.
A: Given:- What do you think about data hiding, data encapsulation and data binding? please Elaborate.
Q: If adding a data object to a data model is not recommended, why is this the case?
A: If adding a data object to a data model is not recommended, why is this the case? Yes it is not…
Q: What is the difference between structure and union?
A: Structure:- A user-defined data type in C/C++ is a structure. A framework generates a category of…
Q: Figure 1 below illustrates an Employee class within an object-oriented database. In the context of…
A: as per BNED rules we are allowed to answer three sub parts .if you want the response of another…
Q: Describe an application that you would expect to involve a static data structure. Then describe an…
A: Static data structure are designed to store static “set of data”. However, static “set of data”,…
Q: What is the purpose for not include a data object in a data model?
A: Associating methods (procedures) with objects that may benefit from class hierarchies is the basis…
Q: A sales system is built using Java. The database used is MySQL with the DB name 'Sales' and has a…
A: As you have posted multiple questions, we will solve the first question for you. The database and…
Q: Define Working Set. What is the context? What are consequences of incorrect working sets?…
A: Working set: The working set of a process of the set of pages in the virtual address space of the…
Q: mp3, CD or vinyl collection. The collection consists of albums. An album is made by one artist but…
A: It is defined as a collection of information that is organized so that it can be easily accessed,…
Q: What exactly is data-structure? What are the different types of data structures?
A: Introduction: The data structure, also known as the data element group, is a method for saving,…
Q: Computer science Explain the functional relationship between the primary key and a nonkey attribute…
A: Introduction: Transitive dependency is defined as a functional reliance between the primary key and…
Q: Why is it that a data object should not be included in a data model?
A: Introduction: Data in the Oracle Warehouse Builder data system is stored in target schemas. Objects…
Consider the relational schema shown in Figure 8.8. Give a schema definition in SQL corresponding to the relational schema but using references to express foreign-key relationships.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- How does one-way data binding differ from two-way data binding?Explain the difference between static and dynamic data structures.FUNDAMENTAL DATABASE SUBJECT: Case: A car wash owner wants to monitor the inventory of products and sales of the business. Create a database design in preparation for a system development that would: Store and monitor the supply of products; The number of vehicle washed by a car wash boy. Vehicles can be classified according to its type (motorcycle, van, bus, etc.). The list of vehicles washed by a car wash boy can be monitored. Salary per employee and the vehicles washed can be retrieved. Car wash history per vehicle can be check also. We already Identified the possible tables, so your task will be: 1. Add data on the tables (assume that this is not normalized yet) 2. reflect on the table and follow the normalization steps base on the rules. 3. normalize its table 4. add all table in one document (lucidchart/google docs), should have relationships and cardinality. 5. make sure that it is in highest normal form, highest will be BCNF (if needed).
- Data base systmes: Design an ER schema diagram for a sport league database to keep track of the teams and games of it. The database is organized into teams. Each team has a unique name, a unique number, and particular colors. A team may have several colors. Each team plays several games. It is desired to keep track of the result of each game. A team has a number of players, not all of whom participate in each game. Each player has a unique name, a unique number, and a particular position. It is desired to keep track of the players participating in each game for each team, the performance they played in that game, and the time played by each player in each game.Case Study: National Football League (NFL) Suppose you are given the following requirements for a simple database for the National Football League (NFL): the NFL has many teams, • each team has a name, a city, a coach, a captain, and a set of players, • each player belongs to only one team, • each player has a name, a position (such as left wing or goalie), a skill level, and a set of injury records, a team captain is also a player, • a game is played between two teams (referred to as Home Team and Guest team) and has a date (such as May 11th, 1999) and a score (such as 4 to 2) Instructions: Use the Case Study above to complete the following tasks 1. Identify the objects (entities) and attributes based on the information provided in the case study 2. Create a Data Model to reflect the entities and relationship determined (you can use Draw.IO) 3. Create a database called dbNFL 4. Create the tables in your database. 5. Add at least two records for each table created 6. Transaction Log…Databases: Regular entity type is transformed to a relation.
- Explain the concept of two-way data binding in the context of front-end frameworks. How does it differ from one-way data binding?Explain the concept of abstract data types. How do they differ from traditional or base data types? What is the relationship between a type and a class in OO systems?Q : Design an ERD for the following University System. Design ERD for the university where we have a database that stores information about student, degree program, course as well as the student’s semester if he took a particular course, also store marks with grad after completion the course, where there are one or more program offered in which we have one or more course in a program. It is necessary for a student to be enrolled in a program and it is the part of his program to take either course. A program has a name, a program identifier, the total credit points required to graduate, and the year it commenced. A course has a name, a course identifier, a credit point value, and the year it commenced. Students have one or more given names, a surname, a student identifier, a date of birth, and the year they first enrolled. When a student takes a course, the year and semester he attempted it are recorded. When he finishes the course, a grade (such as A or B) and a mark (such as 60…
- Object-Oriented Programming and Abstract Data Types: Compatible? Object-oriented programming and abstract data structures are recent innovations. By design. Sometimes must you disagree?Computer Science It is needed to design a database system for a pharmacy. The pharmacy contains many different items. Items may be products or medicines. Medicines are classified into different types either bills, injection, capsule or drugs or any combination of them. An item must be supplied by only one supplier. A supplier may supply many type of items. A customer may order many items. The pharmacy has a unique name, address and more than one telephone. The doctor can prescribe one or many medication, injections can not be bought without a doctor prescription. You are requested to draw the EERD diagram for the described system You are required to write down any assumptions made from your side You should add the attributes and cardinality for all the entities You are required to model the EERD into relational modelWhat is the purpose for not include a data object in a data model?