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Construct a generalization-specialization hierarchy for a motor-vehicle sales company. The company sells motorcycles that comprise an engine number and cost; cars that have a chassis number, an engine number, seating capacity and cost; trucks that have chassis number, an engine number and cost.
Explain DML with some examples? DML - Data Manipulation Language: statements used for managing data within schema objects. Some examples: • SELECT - retrieve data from the a da
example of embedded SQL query
Describe a technique for direct search? Explain how data is stored within a file so which direct searching can be performed. For a file of unordered fixed length records by u
How many levels can be viewed in Architecture of the database ? Architecture of the database can be viewed as three levels.
A student entity type has the following attributes,name..
Determine the Derived attribute to avoid re-computation Each class box consists of an ordered list of attributes and operations, each represented as a next string. We can find
Ancestry database records information about family trees . Following information is recorded about each person: FIRSTNAME first name SURNAME surname MNAME maiden name (if
pine vally company
i need help for assignment ..
Removing a Synonym: DROP SYNONYM D30;
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