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What is a view?
A view is a logical view on one or more tables. A view on one or more tables i.e., the data from a view is not actually physically kept instead being derived from one or more tables.
What is the aim of object design The aim of object design is to identify object which the system contains and the interactions among them. The system implements specification
What do you understand by a view? What does WITH CHECK OPTION clause for a view do? - A view is a virtual table which comprises fields from one or more real tables. - It is
Introductory course and so does not require any fancy coding. I will provide a guidance document to help you in producing the solutions.
I need help for my Uni assignments
Using Column aliases Example: To print column names as NAME and ANNUAL SALARY SELECT ENAME "NAME", SAL*12 "ANNUAL SALARY" FROM EMP;
What is system catalog or catalog relation? How is better known as? A RDBMS maintains a explanation of all the data that it contains, information about every relation and index
What are audit trails? An audit trail is a log of all alters to the database along with information like which user performed the change and when the alter was performed.
Our company hires independent contractors to install equipment at precise locations across North America. We want to track the installation data and generate reports. The compan
MOSS VALE is a town with 15000 inhabitants. The fire department wishes to develop a system that automates the despatch of fire engines to attend fires. The ERD below describes the
Question: (a) Why is it important to know the architecture rather than to start requirement capture when designing a large scale system? (b) Who are the different people in
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