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, write the relational schema, and draw the new dependency diagrams. Identify the normal forms for each table structure you created
By using the delete operation some consisting records can be deleted from a relation. To delete some definite records from the database a condition is also specified based on which
Parallelism of transaction execution: A transaction can be divided into various sub-queries that can operate on fragments in parallel. This enhances the degree of concurrency in t
List any two significant differences between a file processing system and a DBMS. File Processing System vs. DBMS Data Independence - Data independence is the capacity t
Multiple-mode locks : It offers two locks: exclusive locks and shared locks. But why do we require these two locks? There are a lot of transactions in the database system that neve
Define physical image of a global relation at a site
The need for three level architecture The aim of the three level architecture is to divide each user's view of the database from the way the database is physically shown.
What is a hash index? A hash index organizes the search keys, with their associated pointers, into a hash file structure.
aggregation
Preliminary entities and attributes of human resourse management database management system
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