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What are the two types of errors?
The two types of errors are:
a) Logical error
b) System error
Give the reasons for allowing concurrency? The reasons for allowing concurrency is if the transactions run serially, a short transaction might have to wait for a preceding long
Scenario: You are a freelance database designer who has just been contacted by a small software development company named Altair Software. The president of the company has asked
Secondary Indexes Let consider the student database and its clustering index and primary (only one will be applicable at a time). Now consider the state when the database is to
database help
Draw an ER diagram for company''s database schema
give some example real life situation where DBMS are most suitable
need to get answer for questions 3&4 on this page in part 1
Define the five basic operators of relational algebra? Five basic operators of relational algebra are: 1. Union (∪∪∪∪) - Selects tuples which are in either P or Q or in both
What is first normal form? The domain of attribute must contain only atomic (simple, indivisible) values.
Which are the two ways in which entities can participate in a relationship? Total and partial are the two ways in which entities can participate in a relationship
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