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Data independence seems that "the application is independent of the access strategy and storage structure of data". In other words, the ability to change the schema definition in one level could not change the schema definition in the next higher level. Two kinds of Data Independence:
Consider a typical sales invoice that would include the following information. Design a single table to hold all of the information required to store an invoice including this info
What is a Phantom Deadlock? In distributed deadlock detection, the delay in propagating local information might cause the deadlock detection algorithms to recognize deadlocks
Forward Recovery (Redo): In this system the committed changes made by a transaction are reapplied to a previous copy of the database. In simpler
Define Fifth Normal form is concerned with Ans : Fifth Normal form is concerned with Join dependency.
What is a query tree? Ans: A query tree, as well known as operator graph, is a tree data structure that corresponds to a relational algebra expression. It denotes the inpu
1. Determine that the Checkpoints are a part of Ans: Checkpoints are a part of Recovery measures
how to calculate frequency count of algorithm
The entity type STUDENT has the following attributes: Student Name, Address, Phone, Age, Activity, and No of Years. Activity represents some campus-based student activity, and No o
Consider a systems development project with the following data Activity Duration (weeks) Precedence Relationship 1. Software design
sql is relationally complete-justify
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