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Limitations of File Based System
The file-based system has some limitations. The limitations are listed as follows:
Besides the above, the maintenance of the File Based System is complex and there is no provision for security. Recovery is non-existent or inadequate.
Speedup Query Processing: A query that includes data at various sites can be split into sub-queries. These sub- queries can be implemented in parallel by various sites. Such parall
System R was developed and designed over a period of 1974-79 at IBM San Jose Research Company. Its purpose was to illustrate that it is possible to create a Relational System tha
draw er diagram using entities crop,employee,department,plot,cultivation plan,machinery,seed,fertilizer
Define a property that is not a property of transactions? Ans: Concurrency is not a property of transactions
#question.what is mapping constraints and types?.
client server architeutre
Do NOT use the timestamp type. Use separate date and time data types only. Figure out how to define an SQL insert statement that uses built-in SQL (or MySQL) functions to define
How to reduce data redundency
Why Like predicate used for? LIKE predicate: The LIKE predicate searches for strings in which have a certain pattern.
Design an algorithm to implement operations Each and every operation specified in the functional model could be formulated as an algorithm. The algorithm indicates how operat
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