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What is known as fudge factor?
The number of partitions is enhanced by a small value called the fudge factor, which is usually 20 percent of the number of hash partitions computed.
what is correlation in nested query
Given the following set of functional dependencies {cf→ bg, g → d, cdg → f, b → de, d → c} defined on R(b,c,d,e,f,g) a. Is cf→ e implied by the FDs? b. Is dg a superkey?
Data Fragmentation "Fragmentation includes decomposing the data in relation to non-overlapping component relations". Why do we require fragmenting a relation?
What are multiple inheritances? Multiple inheritances allow a class to inherit variables and methods from many super classes.
what do you mean by primary key constraint?
what is the relationship between receipt and owner entities in computer sales and service company
Express the following queries in SQL: (a) Write the SQL code that will create ALL the four tables given in the appendix. Your answer should not contain the primary key and
What is OLTP (Online Transaction Processing)? In OLTP - online transaction processing systems relational database design use the discipline of data modeling and generally follo
1. Which model is used to store data in tree structures Ans: Hierarchical model is used to store data in tree structures
Meaningful use refers to the use of certified EHR technology to "enhance quality, efficiency, and reduce health disparities
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