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What are called multilevel indices?
Indices with two or more levels are known as multilevel indices.
Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department.
what is object-identity
(a) Data warehouse can be defined as "a subject-oriented, integrated, time-variant, non-volatile collection of data" in support of management's decision making process. Explain ea
Which database level is closest to the users? External database level is closest to the users.
With the help of a diagram defines the typical element modules of a DBMS? The functional elements of a database system can be widely divided into: 1) Storage manager and 2) q
Explain the Cascadeless Schedule A cascadeless schedule is one in which for every pair of transactions Ti and Tj like that Tj reads a data item before written by Ti, the commit
What are the three fundamental operations that are regular to MySQL Programs? a) Establishing a connection to the MySQL server b) Choosing a database. c) Disconnecting fr
What is the main advantage of the object model? What are its different components? The object model focuses on the logical data structures. Each object model comprises of many
Introductory course and so does not require any fancy coding. I will provide a guidance document to help you in producing the solutions.
What is De-normalization? De-normalization is the method of attempting to optimize the performance of a database by adding redundant data. It is sometimes essential because cur
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