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Define the Immediate Update The immediate update methods may apply changes to the database on disk before the transaction arrives a successful conclusion. Though, these change
What is Conceptual Schema? Conceptual Schema - Conceptual schema elaborates the structure of the overall database for a community of users. It hides the details of physical sto
Define Two phase commit Two phase commit: To make sure atomicity, all the sites where a transaction is being executed must agree on the final outcome of the execution. The tran
(a) Why did SAP introduce the extended star schema?
Ask question #MinimRead Dennis et al. Chapter 6: Minicase 2. Work through it and answer the questions. See the attached example. SequenceDiagram.png Based on the structural mod
why older data models are being replaced by new data models.
The natural join is equal to which product? The natural join is equal to Combination of projection and Cartesian product
XYZ is a large chain of home entertainment rental over 100 stores distributed over all states in Australia. XYZ lends entertainment products such as movies, TV shows and games on v
What is an ER diagram? Why is it used in Database management system (DBMS)?
What is a primary key? Primary key is chosen by the database designer as the principal means of identifying an entity in the entity set.
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