provide example Instance of Data for an object oriented database making?
Instance of data in a database
The data in database at a particular moment is known as instance of database. Each database have a structure or schema that defines variable declarations in tables, the value of these variables at that time is called the instance of that database.
One example here is a database with a table employ, which have thousand table entries or rows at this moment. Then this is the instance of data in this database. If we delete hundered records in the next day, then we can say 900 will be the instance of the data in the nextday.
NOTE: instance of the data in a database will change when we add or delete data to/from the table in that database.
provide example Instance of Data for an object oriented database making?
What are the main differences in a relational and object-oriented database model?
In a database oriented information system, All departments access the same source of data Views into the database system (called subschemas) can be created to provide each department with just the information they need and no more. as your answer Changes to the data do not require that any department change their programs. as your answer The chances of redundant data, or data inconsistencies are dramatically reduced. as your answer All of the above None of the above
Compare the memory and processing requirements for a DDMS to an object-oriented database system. Include the following in your comparison: Types of memory Memory requirements Types of processing Required transfer rates Record types Storage architectures Considerations related to the overall system performance and scalability
Compare the five characteristics of each of the following database architectures: Distributed Object-Oriented Relational Cube Multi-tier One-tier Provide examples of when each would be used.
The characteristic of object oriented programming that allows the method in subclass that overrides the same method in the superclass to be correctly called from an instance of that superclass is called A. abstractness B. polymorphism C. data binding D. inheritance
Describe each questions: Explain why the object-oriented database model was developed. How does the OID in the OO model differ from the primary key in the relational model? Is it possible for a superkey not to be a candidate key? Why or why not? Briefly describe the four types of binary relationships possible between an entity set A and an entity set B based on relationship cardinality. Sales Database: Customer(custId, lastName, firstName, address, phone, creditLimit) Order(orderNumber, date, total, custID) LineItem(orderNumber,...
Explain, compare and contrast Procedural Programming with Object Oriented Programming concepts. Provide examples.
Provide an example (real or imaginary) of an instance where the concept of the unity of command was violated. What kind of impact did/could the violation have on employees and the organization?
What is polymorphism in Object-oriented programming? Write down C# code example support the polymorphism
Service-oriented architectures (SOA) provide object-oriented architectures for web platforms that represent a collection of services. SOA is a software development model based on a contract between a consumer (client) and a provider (server). Explain SOA’s evolution with open standards and how it differs from previous client/server approaches. Also, describe the key limitations of SOA.