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What is object containment?
References among objects can be used to model dissimilar real-world concepts.
job scheduling for different cubes
er diagram on cosmetics.
brief history,definition,current trends and future trends if any of data fragmentation
What is the use of Union and intersection operation? Union: The result of this operation contains all tuples that are either in r1 or in r2 or in both r1 and r2.Duplicate tuple
To delete a particular column in a relation which command is used ? To delete a particular column in a relation ALTER command is used.
Replicating Data One approach that may support efficient access to dissimilar applications as above may be to give access to every of the applications from dissimilar replicate
why three level architecture had been developed/
QUESTION (a) Consider a car database consisting of car model, car make, car origin, Engine capacity, color, cost.
Using Literal Character String Example: To print IS A as one string with column name employee SELECT ENAME || ' IS A ' || JOB AS "EMPLOYEE" FROM EMP;
Increases efficiency : Data is stored close to most often used site, therefore retrieval would be faster. Also, data that is not required by local applications is not stored, there
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