c17_questions
rick07
Each question should be answered in 2 paragraphs.
1. The relational set operators UNION, INTERSECT, and MINUS work properly only if the relations are union-compatible. Discuss union-compatible with at least 3 examples for each and how would you check for this condition.
2. Use examples to demonstrate the connection between SQL commands and transactions, discuss the role of transaction log.
3. What is the difference between ODBC and JDBC database interfaces? Why is it important to have effective and powerful interfaces like these for databases?
4. Discuss the differences between database and data warehouse. Why we need data warehouse when database is available?
9 years ago
10
Answer(1)![blurred-text]()
Purchase the answer to view it
Q1Unioncompatibility.docx
other Questions(10)
- enterprenurship and marketing
- Statistics
- Instructions Revision: Online Exploration 2
- Assignment 6
- Google data centers
- Rogerian Argument paper.
- 3 homework assignments
- The CEO of your company recently met with the external auditors to discuss the scope of the year’s audit. The auditors suggested that they conduct an integrated audit. The CEO has asked you, the accountant, to make a presentation at the next board of dire
- management help
- The Constitution states,
