Object Oriented Database

Data objects can model relational data or advanced data types such as graphics, movies, and audio. Smalltalk, C++, Java, and others are objects used in object-oriented data. The object-relational is a combination of relational and object-oriented databases. Traditional and advanced data types can be used to construct database management systems. These systems can connect to a company’s website and update records as needed. Database Approach The main purpose of a database is data storage that can be stored and retrieved when needed. A popular common language called structured query language (SQL) is used to store and retrieve data in relational database. This language enables the systems to run a report or modify data or remove the data from the database. A database management system (DBMS) controls all aspects of a database, this is not limited to the creation, maintenance, and use of database. The DBMS ensures proper applications are able to access the database. An important purpose of a DBMS is to maintain the data definitions (data dictionary) for all the data elements in the database. It also enforces data integrity and security measures. Data Models Data models provide a contextual framework and graphical representation that aid in the definition of data elements. In a relational database, the data model lays the foundation for the database and identifies important entities,

Object Oriental Analysis Design is a hands on approach used to model and create systems as a group of interacting objects. The term “Object”, describes a form of entity or “thing” of concern. Objects are typically modeled after real world entities or concepts. For the business analyst, examples of objects may range from; invoice, product, contract, etc. Objects usually contain attributes that can be set to specific values. With Object Oriented Approach to system design, it tries to lessen the impact of problems by combining related data and functions into the same module. Objects In the real world can be characterized by two things; data and behavior. For example, a television is an object and possess data in the sense that it is tuned to a particular channel, the scan rate is set to a certain value, the contrast and brightness is a particular value and so on. The television object can also "do" things. The television can switch on and off, the channel can be changed, and so on. Below is a graphical representation of a single object and its characteristics:

All the fields used to describe the attributes of an entity are grouped to form a(n) _______________.

Since 1960 and beyond the need for an efficient data management and retrieval of data has always been an issue due to the growing need in business and academia. To resolve these issues a number of databases models have been created. Relational databases allow data storage, retrieval and manipulation using a standard Structured Query Language (SQL). Until now, relational databases were an optimal enterprise storage choice. However, with an increase in growth of stored and analyzed data, relational databases have displayed a variety of limitations. The limitations of scalability, storage and efficiency of queries due to the large volumes of data [1] [2].

The application standard to use this kind of database is the structured query language (SQL)

A key feature of C++ classes is inheritance. Inheritance allows to create classes which are derived from other classes, so that they automatically include some of its "parent's" members, plus its own. For example, we are going to suppose that we want to declare a series of classes that describe polygons like our CRectangle, or like CTriangle. They have certain common properties, such as both can be described by means of only two sides: height and base.

An object is uniquely identified by its name and has a set of attributes—the characteristics and information that the object represents— defined by a schema, which also determines the kinds of objects that can be stored in Active Directory.

Early research efforts in the area of access control and confidentiality for DBMSs focused on the development of two different classes of models, based on the unrestricted access control policy and on the mandatory access control policy. This early research was transmitting in the framework of relational database systems. The relational data model, being a declarative and high-level model for specifying the logical structure of data, made the development of simple declarative languages for specifying access control policies. These earlier models and the unrestricted models in particular, introduced some important principles that set apart access control models for database systems from access control models adopted by operating systems

It is essential for database to perform as maximized as possible to enable the largest possibilities to process workloads. However, performance bottlenecks would be in a range of common problems as a virtue towards several factors. Major influences to performance in databases are workload, throughput and resources. Workload defines how heavy system commands are in a given time which would largely endure poor performance that also added factor to consider of the overall capabilities of the computer to process all data, thus speed and efficiency define a huge role of a throughput. Further, factor of resources, which

Row-oriented organizations are more efficient when many columns of a single row are required at the same time, and when row-size is relatively small, as the entire row can be retrieved with a single disk seek.

OODB the application architect has much more power to optimize performance than when using an RDB. Consequently the application architecture has more effect on performance and scalability than the choice of

The timeline reveals the highlights of the past of object-oriented modeling techniques and symbols. It is initially based upon the notations of the Booch approach, the (OMT) Object-modeling method and (OOSE) Object-oriented software engineering, which it has actually incorporated into a solitary language.

Object databases don’t store data they store objects instead. An object is given an identity so it can be referenced. Objects consist of attributes and methods. Attributes are characteristics that define the

So far in this chapter we have been discussing database systems from the point of view of the architecture in Fig. 2.3. In this section we offer a slightly different perspective on the subject.

Data is at the centre of most today’s businesses and businesses must pay close attention to how they access, store and use data. One of the systems at the heart of current data management is different database management system.