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Explain data dictonary on oracle ? Data Dictionary - Data dictionaries are the system tables in which contain descriptions of the database objects and how they are structured.
Define rotational latency time. The time spent waiting for the sector to be accessed to appear under the head is known as the rotational latency time.
List the table modification commands in SQL? A) Deletion B) Updates C) Insertion D) Update of a view
Data independence seems that "the application is independent of the access strategy and storage structure of data". In other words, the ability to change the schema definition in o
Data Replication "If a relation R has its copies kept at two or more sites, then it is considered replicated". But why do we replicate a relation? There are several advan
Competition entrants can be either Individuals, or Teams. A Team is usually sponsored by a business, and, in that case, the team members would all wear T-shirts with the sponsoring
Define a property that is not a property of transactions? Ans: Concurrency is not a property of transactions
What is Normalization? Database normalization is a data design and organization method applied to data structures based on rules that help building relational databases. In rel
#question. acompani datdbase needs to store information about employees (identified by a social security number,with salary and phone as attributes) and departments (identified by
Greater potential for bugs: Since the sites of a distributed system operate simultaneously, it is more complex to ensure the correctness of algorithms. The art of constructing dis
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