types of relationships in tables

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hemant kumar

types of relationships in tables
1 Answer(s) 2 years and 6 months ago
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How to implement one-to-one, one-to-many and many-to-many relationships while designing tables?

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November 18, 2010 at 4:10 PM

hi,

One-to-One relationship can be implemented as a single table and rarely as two tables with primary and foreign key relationships.

One-to-Many relationships are implemented by splitting the data into two tables with primary key and foreign key relationships.

Many-to-Many relationships are implemented using a junction table with the keys from both the tables forming the composite primary key of the junction table.

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