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Define object-relational systems?
Systems that give object-oriented extensions to relational systems are known as object-relational systems.
deffine class&object
Let us first describe the term relationships. What Are Relationships? A relationship can be defined as: A set of associations or connection, or A rule for communic
explain the steps for reduction of er model into relational model?
Problem 1 Why are the operational system keys not recommended for forming data warehouse primary keys? Give any two examples 2 Explain the following performance tuning techn
Give an example of enforcement in Typing. You can understand the idea of enforcement as it makes sure objects of dissimilar classes may not be interchanged as below: Exampl
Problem: A DBMS built for Online Transaction Processing (OLTP) is usually regarded as unsuitable for data warehousing. Each system is designed with a different set of requireme
What are the Requirements of algorithm designer Algorithm designer should: i) Select proper algorithm so as to minimize implementation cost ii) Find most appropriate d
The Incident table, with an auto-incrementing incident number, etc, looks like: incident_num reporter date time incide
Association as a cache This association must be updated when any new element is added to it, but testing for overlap using association is more efficient. Figure:
discuss the purpose of the concurrency control?
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