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Which database object does not physically exist?
A view database object does not physically exist.
What are composite attributes? Composite attributes can be separated in to sub parts.
Question: (a) One of the steps in the five-step problem-solving model is implementation. Implementation is considered a key step in the problem-solving model. A problem may be
what is er digram given that example of hospital,bank and library er digram.
Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department.
You are required to write a report which evaluates two of the following issues in relation to your case study database: a. Security issues b. Performance issues c. Backup
Event Occurrence of a process is called event. In other words, the object can receive many input instructions. The changes which occur due to these instructions are known as e
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
Differentiate between join and outer join? Outer joins return all rows from at least one of the tables or views mentioned within the FROM clause, as long as those rows get toge
What are the several forms of identity? a) Value b) Name c) Built-in
what is object-identity
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