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Differentiate sub-class and super-class?
The specialization of a class is known as subclasses.eg: employee is a subclass of person and teller is a subclass of employee. Conversely, employee is a super class of teller, and person is a super class of employee.
What is the difference between WHERE and HAVING clauses?. Predicates in the WHERE clause applies to every tuple while the predicate in the HAVING clause applies to groups.
I have a small project that contains 3 deliverable s. I have done the first one and I would like you to help me with second one
What is the use of unique function? UNIQUE function: If UNIQUE is specified then only unique values are used to computed the mean.
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
What is a function group? A function group is a collection of logically related modules that share global data with every other. All the modules in the group are contained in
draw er diagram using entities crop,employee,department,plot,cultivation plan,machinery,seed,fertilizer
What are the requirements to ensure the objectives of file management principle is realized?
Introductory course and so does not require any fancy coding. I will provide a guidance document to help you in producing the solutions.
A model in database system mostly defines the organisation of data or structure and a set of operations on that data. Relational model is a easy model in which database is represen
With the help of an example display how records can be deleted and updated in QBE. (i) Increase Pay_Rate of employees along with the skill of ‘cook' by 10%. (ii) Delete employee
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