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State the definition of association An association is a structural relationship which specifies that objects of one thing are connected with objects of another. In UML, asso
Relations create the database. They must satisfy various properties, like no duplicate tuples, no ordering of tuples, and atomic attributes, etc. Relations that satisfy these basic
Problem : AirwaysCentre, an international airline booking company currently uses a relational database system for their operations, which includes the following relations: P
State The position of object at any moment is called state. An object can have many states depend upon time. After receiving some input instructions, the object can change its
Type of views : Simple views and Difficult Views Feature Simple Views Complex Views Number of tables One
Describe Query evaluation engine? Query Evaluation engine: Vehicle executes low-level instructions obtained through the DML compiler. The Storage Manager Components gives in
What is RDBMS terminology for a row? A tuple is a RDBMS terminology for a row
Give short note on the following terms:Dirty pages and ETL a.) Dirty pages. These are buffer pages which comprise modifications which haven't been written to disk. b.
Explain heap file with advantages? Heap File is an unordered set or a group of records, stored on a set of pages. This class gives basic support for inserting, updating, select
lock and types of lock
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