In DBMS, Superclass/subclass relationships with a single super-class. A shared subclass may be represented in multiple superclass/subclass relationships, where each relationship has a single superclass. Understanding Superclass/Subclass Relationships in DBMS A single superclass/subclass relationship using more than one superclass. Each superclass represents a distinct entity type. Subclass represents a group of objects that is a subset of the UNION of the distinct entity types. This subclass is known as union type or a category. Example Consider the scenario where we have three distinct entity types: PERSON, BANK, and COMPANY. In a motor vehicle registration database, a vehicle owner can be ... Read More

A Work Breakdown Structure (WBS) and a Project Plan are both essential project management tools, although they serve different purposes. The WBS gives a precise description of the project work and deliverables, whereas the project plan provides an overall roadmap for effectively completing the project. Read this article to find out more about WBS and Project Plan and how they are different from each other. What is WBS? A work breakdown structure (WBS) is a project's hierarchical breakdown into smaller, more manageable components. It separates the project into smaller, more precise tasks or work packages, which can then be ... Read More

Parasites and saprophytes are two types of organisms that obtain nutrients from other sources. Parasites derive nutrition from living organisms, while saprophytes extract nutrients from dead and decaying organic matter. Although both types of organisms rely on other sources for their nutrition, there are significant differences between parasites and saprophytes that are important to understand. What are Parasites? Parasite is an organism that lives on or in another organism (called host), using it as a source of food and a place of temporary or permanent residence. The host does not benefit from cohabitation but may suffer harm. In some cases, ... Read More

Parasites and predators are both known to prey on other creatures in order to ensure their own existence. One of the most widespread types of human parasites, hook worms, feeds on human blood after attaching to the intestinal wall. Moreover, tigers, being the apex predator in their ecosystem, prey upon smaller creatures like as hares, porcupines, and deer. Whereas predators are normally larger, quicker, and/or stronger than their prey, parasites are frequently smaller and weaker than their hosts. In the following paragraphs, we'll go even deeper into the ways in which they differ. What are Parasites? The term "parasite" comes ... Read More

Parasitism is an acquired, secondary type of hostile symbiosis characterised by mutual metabolic dependency between host and parasite. Parasites live off of and feed off of members of different species (called hosts) for extended periods of time. Parasitism serves the parasite but harms the host. What are Parasites? The term "parasite" comes from the Greek words para, which means "alongside, " and sitos, which means "meal"; "parasitos" means "eating at another person's table." A parasite is another organism which receives nourishment from another organism, termed the host. Parasites may or may not cause harm to their hosts, but they never ... Read More

Hatred is a very potent emotion. It is a mental poison that can contaminate your mind, rot your soul, and contaminate all of your relationships. Anybody who has ever been engulfed in hatred knows how destructive and mind-consuming it can be. Even a single phrase can be powerful, especially if it is spoken by a friend, a family member, or a young child. It causes much emotional turmoil for people who are experiencing it. While many things might inspire hatred, including food, jobs, movies, and animals, hatred of other people is the most harmful. Broadly speaking, there are two ... Read More