In a one-to-many relationship, a single statement expands into multiple assembly language or machine instructions.
What is one-to-many relationship?
- A one-to-many relationship, or type of cardinality, is used in systems analysis to describe the connection between two entities, A and B, in which one element of A may be related to several members of B but only to one element of A.
- Consider A and B as books and pages, respectively. Page can only be found in one book; a book can have multiple pages.
- A one-to-many relationship occurs in a relational database when one row in table A is connected to several rows in table B, but only one row in table B is connected to multiple rows in table A.
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