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An many-to-many relationship exists when an entity A can have a relationship with multiple entities B and vice versa.
ExamplesAn employee may learn many jobs skills, and each job skill may be learned by many employees. EMPLOYEE learns SKILL is M:N relationship.
One student may take many courses and one course is attended by many students.
An order can contain many products and a product can be contained in many orders.
Wiki User
∙ 12y ago
Wiki User
∙ 9y agoThere are three kinds of relations that can exist between two entities. These are one to one , one to many and many to many. In many to many entities relation n(A) entity can have relation with m(B) entity.
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Can a relational database support one to one?
Yes. A one to one relationship is one of the types of relationships a relational database can have.Yes. A one to one relationship is one of the types of relationships a relational database can have.Yes. A one to one relationship is one of the types of relationships a relational database can have.Yes. A one to one relationship is one of the types of relationships a relational database can have.Yes. A one to one relationship is one of the types of relationships a relational database can have.Yes. A one to one relationship is one of the types of relationships a relational database can have.Yes. A one to one relationship is one of the types of relationships a relational database can have.Yes. A one to one relationship is one of the types of relationships a relational database can have.Yes. A one to one relationship is one of the types of relationships a relational database can have.Yes. A one to one relationship is one of the types of relationships a relational database can have.Yes. A one to one relationship is one of the types of relationships a relational database can have.
What are predicates that define correct database states and relationship with in database?
schema
What is DBMS relationship?
1.what is a Relationship in database management system?
Ternary relationship in database?
mnnk
Distinguish between a relation and a relationship in database?
Relation is one record in the database or a tuple. Relationship is that how tables are connected to each other.
A schematic of the entire database that describes the relationships in a database is called?
entity-relationship diagram.
What is a connection within the data in a database?
relationship
Binary relationship in database?
A binary relationship is a type of relationship between the entities, which links to types of entities in it.
What are the basic components of database?
Entity Attribution Relationship
How are relationship between tables expressed in a relational database?
Tables are the basic building blocks of a relational database.
What is the most common type of relationship between tables in a relational database?
one-to-many relationship
What is a weak relationship in a database?
Join based on key fields
