Parcels' and 'Urisa' Databases in Oracle

This presentation provides solutions to SQL queries from the 'parcels' and 'urisa' databases stored in Oracle. These exercises aim to enhance your understanding of SQL 'select' statements, 'group by', joins, self-joins, and handling missing values. Solutions are expertly provided by databasehomeworkhelp.com, ensuring clarity and accuracy.

1. Database Homework Help Topic: ‘Parcels ' and ‘ Urisa ' databases in Oracle For any Assignment related queries, Call us at : -   [phone] You can mail us at : -   [email protected] Reach us at : - https://www.databasehomeworkhelp.com/

2. https://www.databasehomeworkhelp.com/ Introduction This presentation provides solutions to SQL queries from the 'parcels' and ' urisa ' databases stored in Oracle. These exercises aim to enhance your understanding of SQL 'select' statements, 'group by', joins, self-joins, and handling missing values. Solutions are expertly provided by databasehomeworkhelp.com , ensuring clarity and accuracy.

3. https://www.databasehomeworkhelp.com/ Purpose Explore 'parcels' and ' urisa ' databases using SQL Understand SQL 'select' statements with 'group by', joins, self-joins, and missing values Practice creating temporary tables in Oracle

4. https://www.databasehomeworkhelp.com/ SQL Plus Logon and Setup Log on using Oracle accounts 'parcels' and ' urisa ‘ Create temporary tables using unique prefixes Change password for individual accounts using Athena ID

5. https://www.databasehomeworkhelp.com/ Querying the 'Toy' Parcel Database Construct SQL statements for the following queries. Question: Which parcels had square footage greater than 10,000 square feet? Code:

6. https://www.databasehomeworkhelp.com/ Question: Which of these parcels in part a had land use code 'C '? Code:

7. https://www.databasehomeworkhelp.com/ Question: Repeat the answer from part c, but this time list the name of the owner in the first column. Code:

8. https://www.databasehomeworkhelp.com/ Question: What is the total loss for each owner whose parcel(s) burned? Code:

9. https://www.databasehomeworkhelp.com/ Question: How many parcels do each owner own and what total square footage of land do they own? Code:

10. https://www.databasehomeworkhelp.com/ Question: Modify your answer to part f to exclude any parcels with square footage less than 30,000 square feet. Code:

11. https://www.databasehomeworkhelp.com/ Question: Modify your answer to part g to exclude any owners that only own one qualifying parcel. Code:

12. https://www.databasehomeworkhelp.com/ Question: Explain the difference or similarity between COUNT(*) and COUNT(tax ). Code : Explanation : COUNT(*) counts all rows. COUNT(tax) counts only non-null values in the 'tax' column .

13. https://www.databasehomeworkhelp.com/ Question: What is the total value (land value plus building value) per square foot of each parcel? Code: Explanation: The query returns 8 rows because some rows have null or zero values that are excluded.

14. https://www.databasehomeworkhelp.com/ Querying the URISA Proceedings Database Construct SQL statements for the following queries. Question: Which keywords were used at least 30 times? Code:

15. https://www.databasehomeworkhelp.com/ Question: List the authors who wrote at least 4 papers. Code :

16. https://www.databasehomeworkhelp.com/ Question: Find the paper number and title of all papers using both keyword 305 and 218. Code:

17. https://www.databasehomeworkhelp.com/ Additional Questions Construct SQL statements for the following queries. Question: Correct and run the provided query for total loss from fires greater than $100,000. Code:

18. https://www.databasehomeworkhelp.com/ Question: Which papers written in 1988 had three or more authors? Code:

19. https://www.databasehomeworkhelp.com/ Question: List the authors who co-authored a paper with either 'Longley' or 'Curry'. Code:

20. https://www.databasehomeworkhelp.com/ Question: Which authors used keywords 305, 306, and 307 in their papers ? Code:

21. https://www.databasehomeworkhelp.com/ Conclusion In conclusion, the SQL queries and their solutions presented here demonstrate practical applications of relational database concepts. For comprehensive assistance and expert guidance on database assignments, visit databasehomeworkhelp.com . Enhance your SQL skills with reliable support.

22. https://www.databasehomeworkhelp.com/ Thank You