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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.
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∙ 10y ago
An intersection entity is used in a database when there is a many-to-many relationship between two entities. It serves as a bridge table to resolve the many-to-many relationship by breaking it into two one-to-many relationships. Each record in the intersection entity represents a combination of records from the two related entities.
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What term refers to a collection of related information about a specific entity in a database?
A record refers to a collection of related information about a specific entity in a database. Each record typically contains fields that represent different attributes or properties of the entity being stored.
Are the data elements that describe an entity.?
Yes, data elements are the smallest units of data that describe an entity in a database. They represent specific attributes or properties of the entity and are used to store and manipulate information about that entity.
What is one piece of information keyed into your database called?
A data point in a database is referred to as a field. It represents a single piece of data about a specific entity or object within a database.
What is specialization in dbms?
Specialization in database management refers to the process of creating subtypes from a supertype entity in an entity-relationship (ER) model. It allows for the customization and organization of data based on unique characteristics within a specific subset of the main entity. This helps in categorizing and structuring data more efficiently.
What is drop command?
The "drop" command is typically used in programming or databases to remove a specific element or entity. For example, in SQL, you can use the "DROP TABLE" command to delete a table from a database. It is important to use this command carefully, as it permanently deletes the specified object.
A is anything about which data are to be collected and stored?
A can be defined as the subject or entity for which data are being collected and stored. It can represent any element, person, product, or event that is being recorded and analyzed within a dataset. In data collection, A serves as the focal point for gathering information and insights.
Why do we need weak entity sets?
why do we need weak entity in database when we can make it strong entity?
What is week entity sets?
In a relational database, a weak entity is an entity that cannot be uniquely identified by its attributes alone; therefore, it must use a foreign key in conjunction with its attributes to create a primary key.Wikipedia
What is difference between object and entity?
A database object is represented as one of the following: database, schema, table, column, primary key, and foreign key A database Entity is: An entity is a thing or object of importance about which data must be captured. All things aren't entities - only those about which information should be captured. Information about an entity is captured in the form of attributes and/or relationships. If something is a candidate for being an entity and it has no attributes or relationships, it isn't an entity. Database entities appear in a data model as a box with a title. The title is the name of the entity.
Entity-relationship model of hospital mis?
entity relation model for hospital database
A schematic of the entire database that describes the relationships in a database is called?
entity-relationship diagram.
What is all of the fields for a single database entity?
Record
What are the basic components of database?
Entity Attribution Relationship
What is entities database?
Entity means a specific thing in both database work and data modeling. An entity is data that can be classified, and has a relationship with other classified data, as in entities.
What is the intersection of a triangle called?
In usual mathematical study, a ray is the most commonly used entity to intersect a triangle.Howver, any geometric object can intersect a triangle, therefore the nature will differ depending on what you use to perform the intersection.
What is all of the fields for a single database entity called?
Record
What is Entity instances?
Entity instance is a single occurrence of an entity type. Also known as an instance. Unlike entity type, many instances of entity type may be represented by data stored in the database.
