Questions from Database Systems

Q: What are the four basic categories of NoSQL databases?

What are the four basic categories of NoSQL databases?

Q: How are the value components of a key-value database and

How are the value components of a key-value database and a document database different?

Q: Briefly explain the difference between row-centric and column-centric

Briefly explain the difference between row-centric and column-centric data storage.

Q: What is the difference between a column and a super column in

What is the difference between a column and a super column in a column family database?

Q: Explain why graph databases tend to struggle with scaling out?

Explain why graph databases tend to struggle with scaling out?

Q: Find the customer balance summary for all customers who have not made

Find the customer balance summary for all customers who have not made purchases during the current invoicing period. The results are shown in Figure P7.41. FIGURE P7.41 Summary of Customer Balances f...

Q: What is data analytics? Briefly define explanatory and predictive analytics.

What is data analytics? Briefly define explanatory and predictive analytics. Give some examples.

Q: Describe and contrast the focus of data mining and predictive analytics.

Describe and contrast the focus of data mining and predictive analytics. Give some examples.

Q: What are the traditional 3 Vs of Big Data? Briefly,

What are the traditional 3 Vs of Big Data? Briefly, define each.

Q: How does data mining work? Discuss the different phases in the

How does data mining work? Discuss the different phases in the data mining process.