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What is called query processing?
Query processing refers to the range of activities included in extracting data from a database.
Mappings between Levels and Data Independence The 3 levels of abstraction in the database do not exist separately of each other. There must be some correspondence, or mapping
Enumerate or state the steps in creating a relevant database of a shop.
How external/conceptual mapping and conceptual /internal mapping is performed
Explain the Difference between DROP and DELETE DELETE deletes one or more than one tuples of a particular relation from the database. DROP is employed to remove a table from th
What are the various forms of data transparency? a) fragmentation transparency b) replication transparency c) location transparency
What does conceptual design work? A conceptual design involves modelling independent of the DBMS.
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:
Introductory course and so does not require any fancy coding. I will provide a guidance document to help you in producing the solutions.
Objectives After Reading this part, you should be able to: Explain the term CONCURRENCY; Describe the term transaction and concurrent transactions; Talk about co
The ER diagram clearly showing the additional tables you have implemented. SQL table creation scripts for the tables you have set up. SQL scripts showing the sample data you
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