Basic SQL 6.1. How do the relations (tables) in SQL differ from the relations defined formally in Chapter 3? Discuss the other differences in terminology. Why does SQL allow duplicate tuples in a table or in a query result? 6.2. List the data types that are allowed for SQL attributes. 6.3. How does SQL allow […]
Read chapters 2 and 3 textbook and review reputable IGU online library resources and journals and discuss advantages and disadvantages of relational model.
Relational Model 1 Read chapters 2 and 3 textbook and review reputable IGU online library resources and journals and discuss: Advantages and Disadvantages of Relational Model. 2 Read chapter 3 and reputable journals/articles and IGU online library resources and describe the following relational operators: Union, Project, Intersect and Join. Please provide a real-world application example […]
What does it mean to say that a database displays both entity integrity and referential integrity? And why entity integrity and referential integrity important in a database?
ASSIGNMENT QUESTION 1 Discuss What are some database functions that a spreadsheet cannot perform. QUESTION 2 :- Read chapter 1 of your textbook and review IGU online resources and reputable articles / journals and describe Problems with File System Data Processing. Provide examples if applicable. QUESTION 3:- What is a relationship, and what three types […]