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one_to_one_relationship.htm
Navigation:  Glossary Index >====== one-to-one relationship ============ A connection between two data entities in which there may exist one and only one corresponding value in the primary key of one database file or table, to a single identical value in the foreign key of another table. For example, the relation of customer name to internet address. The data is usually split into two separate tables for storage savings; all customers have names, but only a minority have internet addresses. ====== Previous pageReturn to chapter overviewNext page
one_to_one_relationship.htm.txt · Last modified: 2021/04/15 15:57 by 127.0.0.1