Learning Goal: I’m working on a databases discussion question and need an explanation and answer to help me learn.
1) Compare inheritance in the EER model (see Chapter 4) to inheritance in the OO model described in Section 12.1.5
2) What are the differences between structured, semistructured, and unstructured data?
Category: Databases
Learning Goal: I’m working on a databases discussion question and need an explanation and answer to help me learn.
1) Discuss the correspondences between the ER model constructs and the relational model constructs. Show how each ER model construct can be mapped to the relational model, and discuss any alternative mappings?
2) List the three main approaches to database programming. What are the advantages and disadvantages of each approach?
upload answers in a .txt or .docx/.doc
Answer the following questions:
Discuss the 3 Vs of Big Data.
What is NoSQL and what are the major NoSQL approaches (categories)?
1) How can the key and foreign key constraints be enforced by the DBMS? Is the enforcement technique you suggest difficult to implement? Can the constraint checks be executed in an efficient manner when updates are applied to the database?
2) What is the FUNCTION operation? For what is it used? And Present a practical example/ scenario.