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1NF: First Normal Form - Eliminate repeating data and non-atomic values; add keys The data is stored in a relation (table) and each attribute (column) contains atomic values. There are no repeating groups of attributes. 2NF: Second Normal Form - Eliminate partial dependencies. The relation is in fırst normal form and all the attributes depend on the relation's unique identifier (primary key). --All the nonkey columns are dependent o the table's primary key. (All nonkey attributes are functionally dependent on the entire primary key.) 3NF: Third Normal Form - Eliminate transitive dependencies. The relation is in second normal form and all of its attributes are not transitively dependent on the unique identifier. ----A table contains only columns that are non-transitively dependent on the primary key (i.e., all nonkey attributes depend only on the primary key)

1NF: First Normal Form - Eliminate repeating data and non-atomic values; add keys The data is stored in a relation (table) and each attribute (column) contains atomic values. There are no repeating groups of attributes. 2NF: Second Normal Form - Eliminate partial dependencies. The relation is in fırst normal form and all the attributes depend on the relation's unique identifier (primary key). --All the nonkey columns are dependent o the table's primary key. (All nonkey attributes are functionally dependent on the entire primary key.) 3NF: Third Normal Form - Eliminate transitive dependencies. The relation is in second normal form and all of its attributes are not transitively dependent on the unique identifier. ----A table contains only columns that are non-transitively dependent on the primary key (i.e., all nonkey attributes depend only on the primary key)

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Normalize this relation below. Take it through the 1NF, 2NF, and 3NF progression. • Use MS Word to draw the tables and show the entire set of tables at each step. Express your thought process in a few sentences at each step. (Don't just repeat the rules!) NOTE: • You will need to create primary key and foreign key columns. Indicate the Primary Key columns by making them bold/underline. This step will be ONF Imagine an effort by someone who has attempted to make a database of library item circulation. This is a simplified example, of course, but assume we were trying to track patrons and the items they checked out. A table to hold all this data could look like: FirstName LastName PatronType Township Item checked out Maree Hamid Adult Clarke Jaws: 2021-01-19 Joe Nelson Child Clarke Hoop Dreams: 2021-02-03 Joe Nelson Child Clarke Bugs: 2021-02-03 |Alain Jones Adult Ripley Hoop Dreams: 2021-01-10 Alain Jones Adult Ripley Jaws: 2021-01-10 1NF: First Normal Form - Eliminate repeating data and non-atomic values; add keys The data is stored in a relation (table) and each attribute (column) contains atomic values. There are no repeating groups of attributes. 2NF: Second Normal Form - Eliminate partial dependencies. The relation is in fırst normal form and all the attributes depend on the relation's unique identifier (primary key). --All the nonkey columns are dependent on the table's primary key. (All nonkey attributes are functionally dependent on the entire primary key.) 3NF: Third Normal Form - Eliminate transitive dependencies. The relation is in second normal form and all of its attributes are not transitively dependent on the unique identifier. ----A table contains only columns that are non-transitively dependent on the primary key (i.e., all nonkey attributes depend only on the primary key)
Transcribed Image Text:Normalize this relation below. Take it through the 1NF, 2NF, and 3NF progression. • Use MS Word to draw the tables and show the entire set of tables at each step. Express your thought process in a few sentences at each step. (Don't just repeat the rules!) NOTE: • You will need to create primary key and foreign key columns. Indicate the Primary Key columns by making them bold/underline. This step will be ONF Imagine an effort by someone who has attempted to make a database of library item circulation. This is a simplified example, of course, but assume we were trying to track patrons and the items they checked out. A table to hold all this data could look like: FirstName LastName PatronType Township Item checked out Maree Hamid Adult Clarke Jaws: 2021-01-19 Joe Nelson Child Clarke Hoop Dreams: 2021-02-03 Joe Nelson Child Clarke Bugs: 2021-02-03 |Alain Jones Adult Ripley Hoop Dreams: 2021-01-10 Alain Jones Adult Ripley Jaws: 2021-01-10 1NF: First Normal Form - Eliminate repeating data and non-atomic values; add keys The data is stored in a relation (table) and each attribute (column) contains atomic values. There are no repeating groups of attributes. 2NF: Second Normal Form - Eliminate partial dependencies. The relation is in fırst normal form and all the attributes depend on the relation's unique identifier (primary key). --All the nonkey columns are dependent on the table's primary key. (All nonkey attributes are functionally dependent on the entire primary key.) 3NF: Third Normal Form - Eliminate transitive dependencies. The relation is in second normal form and all of its attributes are not transitively dependent on the unique identifier. ----A table contains only columns that are non-transitively dependent on the primary key (i.e., all nonkey attributes depend only on the primary key)
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