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What is an object design?
Object design is a very interactive method, which decides the relationship among objects, classifies operations on classes, determines overall system representation and designs algorithms associations.
What is meant by log-based recovery? The most widely used structures for recording database changes is the log. The log is a sequence of log records, recording all the update a
Write short notes on extension and intension? In any data model, it is significant to distinguish among the description of the database and the database itself the description
Using a labelled diagram explain the operation of the Data Warehouse, define the basic architectural components and outline the main functionalities. Briefly explain the role an op
Design a gennalization and specialization hierarchy for an automobile sales company
What is Asterisk in SQL? Asterisk (*): In SQL, the columns for all the tables and views in the FROM clause will be displayed.
Define Cascading rollback The phenomenon where a single transaction failure leads to a series of transaction rollbacks is known as Cascading rollback.
What is known as a search key? An attribute or set of attributes used to look up records in a file is known as a search key.
What is the difference between link and reference? The fundamental difference between links and references is that links are symmetrical on the other hand references refer only
System Design: An Object Oriented Approach Any software systems always try to change and evolve as technology and business rules evolve. The development of information systems
Explain the two constraints, check and foreign key in SQL along with an example for each. Give the syntax. CHECK constraint - CHECK constraint specifies an expression which
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