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Which is another name for weak entity? Child is another name of weak entity.
A Distributed Transaction Let us demonstrate the concept of a distributed transaction by considering a banking system having of three branches located in 3 different cities. Ev
Can a filed occur in several field groups. Yes. But it leads to redundant data redundancy.
To eliminate duplicate rows (distinct operator) Example: SELECT DISTINCT DEPTNO FROM EMP;
differences between a classified catalog and a dictionary catalog
Improved performance: As the data is located near the site of its demand, and given the inherent parallelism because of multiple copies, speed of database access may be good for di
Assume that you are responsible for selecting a new DBMS product for Sohar Hospital
Describe the various types of Online Analytical Processing (OLAP) tools and briefly discuss how the support common analytical operations.
What is Relational Algebra? Relational algebra is a Procedural query Language?
Concurrency Identification While designing analysis, model we map real world model into our analytical model. Real life objects are simultaneous in nature, but all the design
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