The input to the data normalization process is a list of the attributes in the database and
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- The input to the data normalization process is a list of the attributes in the database and a list of the functional dependencies among them.
- The data normalization process is known as a "composition process."
- A group of tables is said to be in a particular normal form if every table in the group is in that normal form.
- In first normal form tables every attribute value is atomic, that is no attribute is multi- valued
- Converting from first to second normal form involves subdividing tables to remove transitive dependencies.
- A transitive dependency occurs when a non-key attribute determines another non-key attribute.
- The data normalization process is progressive. If a group of tables is in second normal form it is also in third normal form.
Related Book For
Fundamentals Of Database Systems
ISBN: 9780133970777
7th Edition
Authors: Ramez Elmasri, Shamkant Navathe
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