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Batch-01_BSc_Semester-01_Basics Of Data Analytics
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Table A has information on managers with each record corresponding to a manager. Table B has information about employees with each record corresponding to an employee. The relationship between Table A to Table is an example of-
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Which of the following statements are NOT true about keys?
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Why are right joins considered less commonly used than left joins?
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Which format is more suitable for visualizing or analyzing data across different tiers or categories?
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What is the primary purpose of combining different data sets in data analytics?
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When more than one variable is required to uniquely identify each observation, the key is called a:
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What must be true for a union operation to work properly?
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What is a primary key in the context of relational databases?
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What is the key difference between an inner join and a full join?
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What challenge might arise when converting hierarchical data into wide format?
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