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Define instance and schema? Instance: Collection of data kept in the data base at a particular moment is known as an Instance of the database. Schema: The o
Define Fifth Normal form is concerned with Ans : Fifth Normal form is concerned with Join dependency.
limitations and benefits in database tecknowlagy
Consider a research paper submission process. The process starts when an author submits a draft research paper (the paper may have up to 3 authors) to the chair of the organizing c
Draw and explain the three level architecture of the database system? A DBMS gives three levels of data is said to follow three-level architecture. The trget of the three-schem
Define Thomas write rule Thomas' write rule: The Thomas' write rule is a modification of timestamp-ordering protocol for concurrency control. Assume that transaction T i issue
This project will involve designing and creating a database for an organization. In the design of a database, there is no single "perfect" design. So your database design may not
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
what is Lossless-join decomposition
What are the object-oriented approaches Software systems which are designed with structured design methodology never support some of desired quality attributes for example reus
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