Weak Entity set An entity set may not have sufficient attributes to form a primary key, and its primary key compromises of its partial key and primary key of its parent entity. 1. **问题完整性判断**:题目明确给出弱实体集的定义,并要求通过答案与解析解释其含义,命题完整。2. **关键定义分析*...
For instance, a strong entity set is usually represented by a rectangle, while a weak entity set is illustrated as a double rectangle. Attributes Attributes are the characteristics of an entity. For example, let’s say your ER diagram maps software students use to apply to college. Under the...
Strong Entity Type Weak Entity Type Strong Entity Type:Strong entity are those entity types which has a key attribute. The primary key helps in identifying each entity uniquely. It is represented by a rectangle. In the above example, Roll_no identifies each element of the table uniquely and h...
Explain what is weak and strong entity sets. Describe the basic assumptions of accounting. What are known current liabilities? Provide at least two examples. How many accounting assumptions and principles are there? Explain how a firm might use a special purpose entity (SPE...
Weak Liable to break or give way under pressure; easily damaged The salamander's tail may be broken off at a weak spot near the base Strong Able to withstand force, pressure, or wear Cotton is strong, hard-wearing, and easy to handle Weak Lacking intensity or brightness A weak light from...
Accounting is known as a business's language. It means it is the way to communicate business information. It is based on certain principles and regulations that every business has to follow. Answer and Explanation:1 The Entity Principle of Accounting means that the business and its owner are ...
Weak Entities, which are depended on the existence of another entity. For example, an order item will be meaningless if there is no order. Strong Entities are defined without relying on other entities. An Entity Set is defined as a type of entity at a specific time period (e.g. the...
A man-in-the-middle (MitM) attack is a form of cyberattack in which criminals exploiting weak web-based protocols insert themselves between entities in a communication channel to steal data. None of the parties sending email, texting, or chatting on a video call are aware that an attacker...
Strong AI versus Weak AI Strong AI– Also known as deep AI or what some might deep AGI; the idea that a computer can be made or raised to intelligence levels that match human beings’. Weak AI– Otherwise known as narrow AI; the idea that computers can be endowed with features that mi...
Strong Entity Weak Entity Associative Entity Difference between Strong and Weak Entity: Strong EntityWeak Entity It is not dependent on any entity.Dependent on a strong entity for existence. It will always have a primary key.Does not have any primary key. ...