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A relationship between the instances of a single entity type is called a ........................?
A relationship between instances of a single entity type is called a self-relationship or recursive relationship. This type of relationship occurs when an entity is related to other instances of the same entity type within the same entity set.
What is collectivity give an example?
Collectivity refers to a group or collective entity that has shared goals, interests, or characteristics. An example of collectivity is a community coming together to support a local charity event or a group of coworkers collaborating on a project at work.
Is the 4-h headquarters a private entity?
The 4-H headquarters is operated by the National Institute of Food and Agriculture (NIFA), which is a federal agency within the United States Department of Agriculture (USDA). While it is government-funded and affiliated with a federal agency, it is not a private entity.
What is an antonym of separate?
The antonym of separate is "unite" or "join." It refers to bringing things together or combining them into a single entity.
What do you mean when you say from whose perspective?
"When I say 'from whose perspective,' I am asking for the viewpoint or point of view of a specific person or entity in relation to a particular situation, topic, or event."
Explain child Relationships in dbms?
A child relationship refers to an entity or table that cannot exist without the existence of another entity or table. An example of this would be a table that is created to address a many-to-many relationship between two other tables.
Entity relationship model with example?
draw an er diagram on attendance management system
A relationship between the instances of a single entity type is called a ........................?
A relationship between instances of a single entity type is called a self-relationship or recursive relationship. This type of relationship occurs when an entity is related to other instances of the same entity type within the same entity set.
Can a relationship have only one participating entity?
yes. For example, only one person actually "participates" in the stalker/victim relationship.
What is total participation in database management?
Participation (or optionality) concerns the involvement of entities i a relationship. Participation is about exceptions to the rule. An entity's participation is optional if there is a least one instance of an entity which does not participate in the relationship. An entity participation is mandatory if all instances of an entity must participate in the relationship.
Full form of eer model?
ENHANCED ENTITY RELATIONSHIP OR EXTENDED ENTITY RELATIONSHIP
Can an identifying relationship of a weak entity type will be of a degree greater than two give example?
Sure thing, honey. An identifying relationship of a weak entity type can definitely have a degree greater than two. For example, let's say we have a weak entity type called "Order Item" that depends on both "Order" and "Product" entities to uniquely identify it. In this case, the identifying relationship would have a degree of two (connecting "Order" and "Product") but the weak entity type itself would have a degree of three. Hope that clears things up for ya!
Entity relationship diagram of a portfolio management system?
The entity relationship diagram of a portfolio management system serves as a graphical representation of entities and their relationships to each other in a conceptual database model. In addition, a corresponding data dictionary is developed to explain these relations.
Entity Relationship diagram for Hotel Reservation System?
An entity relationship diagram for hotel reservation systems is a map of each entity or thing that has a part in the process of hotel reservations. The diagram maps the relationship between each entity of the process.
What is entity relationship diagrame?
An entity relationship diagram (ERD) represents the entities, or groups of information, and their relationships maintained for a business. An entity relationship diagram represents the entities, or groups of information, and their relationships maintained for a business. An entity relationship diagram represents the entities, or groups of information, and their relationships maintained for a business.
When do you have to use an intersection entity in database?
If you have a many-to-many relationship between two entities you create an intermediate entity between.Now, the relationship between the first entity and intersection entity is one-to-many, and the relationship between the second entity and intersection entity is one-to-many also.
What is the difference between total and partial generalization?
the participation of an entity set E in a relationship set R is said to be total if every entity in E participates in at least 1 relationship in R .... if only some entities in E participates in the relationship R then the participation of entity set E in relationship R is said to be partial..... example every loan entity should be related with 1 customer with borrower relationship therefore participation of loan in borrower is full or total..... and it is possible that only some customer entities are related wid to loan entity set through borrower relationship so participation of customer in borrower relationship is partial..... Abhishek jaiswal IEM kolkata
