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Heap files (unordered file)
Mostly these files are unordered files. It is the easiest and most basic type. These files having of randomly ordered records. The records will have no exacting order. The operations we can do on the records are retrieve, insert and delete. The types of the heap file or the pile file Organisation are:
design a generalization specialization hierarchy for a motor vehicle sales company. the company sells motorcycles, passenger cars, vens and buses.
Explain CNT in the respects of QBE ? CNT: It is one of the aggregation commands given in QBE. It is used to identify number of tuples
explain the mapping constraints
Explain I command in QBE ? I : It is the command in QBE that is used to insert tuple (s) into the database
Give the levels of data abstraction? There are three levels of Data Abstraction a) Physical level b) logical level c) view level
I want to fragment existing table using java code... help me..!!
what is check point in database management system
What is view in SQL? How is it defined? Any relation that is not part of the logical model, but is made visible to a user as a virtual relation is known as a view. We descri
Greater potential for bugs: Since the sites of a distributed system operate simultaneously, it is more complex to ensure the correctness of algorithms. The art of constructing dis
What is the difference between link and reference? The fundamental difference between links and references is that links are symmetrical on the other hand references refer only
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