Digital Wallet: the access control rule for the class Transaction and boundary use case for the entity class Transaction
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SQL
SQL stands for Structured Query Language, is a form of communication that uses queries structured in a specific format to store, manage & retrieve data from a relational database.
Queries
A query is a type of computer programming language that is used to retrieve data from a database. Databases are useful in a variety of ways. They enable the retrieval of records or parts of records, as well as the performance of various calculations prior to displaying the results. A search query is one type of query that many people perform several times per day. A search query is executed every time you use a search engine to find something. When you press the Enter key, the keywords are sent to the search engine, where they are processed by an algorithm that retrieves related results from the search index. Your query's results are displayed on a search engine results page, or SER.
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- Defintion of the phrase dynamic binding.UML Diagrams Provide a UML diagram for the RetailItem class, using the table provided on page 4 of this document. Discussion on UML diagrams can be found throughout Chapter 6. Be sure to include all of the following: Member variables and member functions Access specifiers for all member variables and member functions Data types for all member variables Data types for all parameters Return types for all member functions and constructors public class RetailItem { private String description; // Item description private int unitsOnHand; // Number of units on hand private double price; // Unit price /** This constructor initializes the item's description with an empty string, units on hand to 0, and price to 0.0. */ public RetailItem() { description = ""; unitsOnHand = 0; price = 0.0; } /** This constructor initializes the item's description, units on hand, and price with values…The technique of packaging an objects attributes into a cohesive unit that can be used as an undivided entity is ____________. a. inheritance b. encapsulation c. polymorphism d. interfacing
- Computer Sicence Objective: To create a JSON for Scheme details with objects Scenario: Government wants to create a database for schemes launched in respective country. Application sends the details of schemes in the form of JSON Help to create a JSON with the information provided. Name Datatype of value Scheme String MinistryDetails Object LaunchedYear Number Country String BudgetInCrores Number MinistryDetails- Object : Name Datatype of value Ministry String MinisterName String HeadOfMinister String NOTE: You can assume any data for the mentioned JSON structure, provided it is matching the specified datatypeCourse: Database Systems: Design and Application Web Shop scenario: A supplier (Supp-#) processes many purchase orders (PO-#) and sells a number of products (Prod-#). A product is sold by only one supplier. Each of the purchase orders that a supplier may process includes several products. The relationship between order and product is defined as "Line Item". A customer (Cust-#) may place one or more purchase orders. A purchase order may be placed by only one customer. Assignment requirements: Answer the following questions using above scenario: Identify the entities and attributes that required to draw the ER diagram. Integrate the entities with appropriate relationship and design the unified ER model.Employee Management system: This system allows the employees to apply for leaves, upload certificates etc. online. The HR Manager can also use the system for administrative purpose. Create your own case study (problem statement) for the above application and Class diagram with at least 4 classes and explain all the relationships
- How do you identify the potential classes in a problem domain description?Define Property Set sectionDraw the domain class diagrams Scenario: Patient Administration SystemA local hospital has a large number of registered physicians, each with a unique physiciannumber. Physicians all have at least one specialty. Patients are admitted to the hospital byphysicians. The hospital keeps track of the patients’ names and addresses, and assigns eachpatient a unique patient identifier.Any patient who is admitted must have one and only one admitting physician. Onceadmitted, a patient must be treated by at least one physician. A particular physician maytreat any number of patients, or may not treat any patients. Whenever a patient is treatedby a physician, the hospital wishes to record the date and time of the treatment
- Task 4 Develop a class diagram for following description: Develop a class diagram for following description: The telephone agent uses an order registry and customer catalog to obtain access to an order & a customer respectively. The order registry uses an order number as a qualifier to select particular order instance. A customer catalog uses customer name and phone number as a qualifier to select particular customer. The attributes of an order are the order numbers and time when it is placed. The order consists of many items. An item has item_number, a quantity, unit price. It also has reference to catalog item which represents listing. When an order is cancelled or corrmitted, it cancels or commits each of its items first. When an order's total price method is invoked, the order calls the total price method of each of items and returns the sum.Objective: To create a JSON for Scheme details with objects Scenario: Government wants to create a database for schemes launched in respective country. Application sends the details of schemes in the form of JSON Help to create a JSON with the information provided. Name Datatype of value Scheme String MinistryDetails Object LaunchedYear Number Country String BudgetInCrores Number MinistryDetails- Object : Name Datatype of value Ministry String MinisterName String HeadOfMinister String NOTE: You can assume any data for the mentioned JSON structure, provided it is matching the specified datatypequestion 1 Define access specification and its types. How the access specification differs when applied at class level and members level.