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Dependency Preservation It is obvious that the decomposition must be lossless so that we do not lose any information from the relation that is decomposed. Dependency preservati
Explanation on Data Sharing?
define locking in simple language and decribed it
online eductional management system ke diagram
#explain five disadvantages of a dbms..
What is De-normalization? De-normalization is the method of attempting to optimize the performance of a database by adding redundant data. It is sometimes essential because cur
What are the advantages and disadvantages of merging an association into a class? Advantages: i) Less number of tables ii) Faster performance due to the fewer tables
Example: Consider the following relations: ROLLNO NAME ADDRESS COURSE_ID 100 Ka
discuss the purpose of the concurrency control?
What does the cardinality ratio specify? Mapping cardinalities or cardinality ratios state the number of entities to which another entity can be associated. Mapping cardinaliti
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