1. Relational database integrity rules are especially important to good database design. Relational database management systems (RDBMSs) enforce integrity rules automatically, but it is much safer to make sure your application design conforms to the entity and referential integrity rules. As an upcoming database designer, explain in your own words, entity and referential integrity rules and comment on their importance in database design. 2. Although Null values are problematic in databases, it cannot be avoided in some cases. Describe how you could use null values in a database.
1. Relational database integrity rules are especially important to good database design. Relational database management systems (RDBMSs) enforce integrity rules automatically, but it is much safer to make sure your application design conforms to the entity and referential integrity rules. As an upcoming database designer, explain in your own words, entity and referential integrity rules and comment on their importance in database design. 2. Although Null values are problematic in databases, it cannot be avoided in some cases. Describe how you could use null values in a database.
Database Systems: Design, Implementation, & Management
12th Edition
ISBN:9781305627482
Author:Carlos Coronel, Steven Morris
Publisher:Carlos Coronel, Steven Morris
Chapter9: Database Design
Section: Chapter Questions
Problem 5P
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1. Relational
design. Relational database management systems (RDBMSs) enforce
integrity rules automatically, but it is
much safer to make sure your application design conforms to the entity and
referential integrity rules.
As an upcoming database designer, explain in your own words, entity and
referential integrity rules and comment on their importance in database
design.
2. Although Null values are problematic in databases, it cannot be avoided
in some cases. Describe how you could use null values in a database.
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