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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.
explain in detail about time stamp orderting/
In object oriented design, which steps must designer take to adjust inheritance? To readjust inheritance following steps should be taken: i) Rearrange and adjust the classe
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What is it ?
What is a value? A data value is used for identity. This form of identity is used in relational systems.eg: The primary key value of a tuple recognize the tuple.
List out various user authorization to modify the database schema. a) Index authorization b) Resource authorization c) Alteration authorization d) Drop authorizat
What is DBMS and what are functions of DBMS? DBMS consist of collection of integrated data and set of program to admission those data. The functions performed by a typical
Fifth Normal Form (5NF) These relations still have a difficulty. While defining the 4NF we mentioned that all the attributes depend upon each other. Whereas creating the two ta
A field-groups statement or an insert statement reverses storage space and transfers values. False.
examples of fields in a database
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