How does SQL allow implementation of the entity integrity and referential integrity constraints described in Chapter 3?

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 […]

Compare the scholarly interpretations by Vincent and Holt to those of Church and Gillingham. What does each scholar say about John’s reign and about the reason that Magna Carta was created. How are their interpretations different? Are there any points of agreement? Which do you find more convincing and why?

1. Why was Magna Carta written? Use evidence from as many primary and scholarly sources as possible to support your response. Pick one source (any primary, scholarly, literary, or visual source in the collection) that contradicts your assessment and explain why you find it less convincing. 2. Compare the scholarly interpretations by Vincent and Holt […]