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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.
What are the technique to define a schema completely ? A schema is completely define by DDL and DML query language.
In which relational modes, cardinality is termed? Answer : Cardinality is termed in a number of tuples relational modes.
I have been given 8 differebt data warehouseing failure case studies. I need to question 4 questions for each
What is the initial step for object-oriented designing The initial step for object-oriented designing is object modeling. Before we go into deep about object modeling first of
Which is another name for weak entity? Child is another name of weak entity.
need requirement analysis for database management of stock market
In the first unit of this block, you have been given with the details of the Database Management System, its structure, advantages etc. This unit is an attempt to give you informat
Primary index A primary index is a file that has a sorted series of records having two columns: a block address for that key field in the data file; and the ordering key field.
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I need help with data warehousing and business intelligence course project about designing a data warehouse for a jewelry company that does not have one
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