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Explain data independence ?
Data independence is the capacity to modify the schema at one stage of a database system without having to change the schema at the further level. The three-schema architecture permits the feature of data independence. Data independence occurs since while the schema is changed at a few level, the schema at the further level remains unchanged; only the mapping among the two levels is changed.
job scheduling for different cubes
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define locking in simple language and decribed it
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need a DBMS system on any data for assignment.
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as a customer service employee, explain five measures you would recommend a displeased student to patronise a school canteen
We face problem of stock Opening balance and closing balance in Minus
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