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Vertical Fragmentation- Vertical fragmentation groups together only those attributes in a relation that are used jointly by various important transactions. A vertical fragment is d
Consider the subsequent relation Professor (Pfcode, dept, head, time) It is assumed that (i) A professor can work in much more than one
explain three types of internet risks to the consummers whent he business system is data dependent. how can we minimise these risks
The Incident table, with an auto-incrementing incident number, etc, looks like: incident_num reporter date time incide
1. Which model is used to store data in tree structures Ans: Hierarchical model is used to store data in tree structures
1 NF Normal Form The domain of attribute must add only atomic (simple, indivisible) values First normal form (Minimal Form or 1NF) is a normal form need in database normalizat
Explain Alternate key? Alternate Key - All the candidate keys except primary key are known as alternate keys.
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Define Deadlock recovery measures To recover from deadlock, the cycle in the wait-for-graph should be broken. The common technique of doing this is to rollbac
Ways for Selecting Data Structure Algorithms operate on data structure. Therefore, selection of the best algorithm means selecting the best data structure from whole bunch. Th
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