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Explain Derived and Non-Derived Attribute?
In few cases, two or more attribute values are related, for instance, Age and BirthDate attributes of a person. For specific person entity, the value of Age can be determined from the current date and the value of that person's BirthDate. Therefore, the attribute Age is known as derived attribute and the attribute BirthDate is known as non-derived or stored attribute.
Which two files are used during operation of the DBMS? Data dictionary and transaction log are two files used during operation of the DBMS.
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explain in detail about time stamp orderting/
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