What are the uses of database management system?

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What is the example of rdbms?

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What is alternate key?

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Which is the best database?

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Where the data file for system Tablespace is located? What is its name, initial size and maxsize?

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What is normalization and why it is used?

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What is use of LOG (Ver 7) option in EXP command ?

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What is hot backup and how it can be taken ?

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1.If we have a Salary coloumn in Staff entity with this description the salary must be monetary and >=$35450.00, how we can write it in into schemain SQL? 2. If we have Weight and Marks in Assessment entity and the Weight has the description of this it must be Non-zero percentage. And also the Marks attribute stores the maximum possible raw mark for assessment (e.g., 30), while Weight stores of the weight of this assessment for the paper as a whole (e.g., 10%). If Marks is not specified, then Weight is used for both. How we can convert this into schema in SQL????

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How is data stored in a relational database?

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What is the diff bet plan,package,dbrm?

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