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Data Replication "If a relation R has its copies kept at two or more sites, then it is considered replicated". But why do we replicate a relation? There are several advan
In order to keep pace with competitors, Space Ltd has decided to implement an ERP system in order to replace its old legacy and manual systems. Management does not have much knowle
Explain Object oriented Model ? Object Oriented Model - This model is based on the object-oriented programming language paradigm. It involves the features of OOP such as inhe
What are referential integrity constraints? A value that appears in single relation for a given set of attributes also appears for a particular set of attributes in another rel
Query Processor The query language processor is responsible for taking query language statements or shifting them from the English-like syntax of the query language to a form
Question 1: a) What is the difference between a non-impact and impact printer? b) Which type of printer is generally used in a supermarket to print your receipt? Describe
Which database object does not physically exist? A view database object does not physically exist.
What is an index? An index is a structure that helps to place desired records of a relation quickly, without probing all records.
Describe Database state in details? Database state: The actual data within the database at a particular moment in time is known as a database state.
Removing a Synonym: DROP SYNONYM D30;
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