Microsoft Dot Net Master

Microsoft Dot Net Master
Microsoft Dot Net Master

Monday, September 19, 2011

How to implement one-to-one, one-to-many and many-to-many relationships while designing tables?


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.

No comments:

Post a Comment