PLEASE HELP ME ANSWER ALL OF MY ITM-315(DATABASE SYSTEMS) questions. PLEASE USE

Question

PLEASE HELP ME ANSWER ALL OF MY ITM-315(DATABASE SYSTEMS) questions. PLEASE USE Microsoft Access to answer the questions.

For some queries, the save button may not appear after running the query. Use file>save where necessary to save the queries.

Create and save the following queries (save as query 1 through query 14) in the provided database: hotel spring 18 ch 10. Rename the database as hotel spring 18 ch 10lastname or hotel spring 18 ch10lastnameandlastname and submit via Blackboard by the due date/time.

Query 7. How many bookings have there been in each city?

Query 8: List each employee’s first name, last name, their hotelNo, their manager’s first name and their manager’s last name.

Query 9 which guests have yahoo email accounts?

Query 10. which hotel (by name) has the most expensive room ?

query11 which guests (by name) have not booked rooms in hotel 1?

Query 12. what is the average price of hotel rooms in Stillwater?

Query 13. List the count of the single rooms for each hotel for any hotel that has less than 2 single rooms.

query 14: drop the standard price column from the room table.

HOTEL SPRING DATABASE

All Access Obje...og employee guest l hotelE room guestNo dateFrom dateTo roomNo ratebooked Click to Add Tables 8/3/2016 2/1/2015 8/4/2016 2/6/2015 13/13/2016 3/15/2016 8/9/2014 8/10/2014 2/8/2015 7/5/2016 3/1/2015 2/4/2015 6/4/2014 3/7/2015 23/10/2015 3/15/2015 2/6/2015 2/4/2014 9/8/2015 9/15/2015 3/9/2016 3/14/2016 2/2/2015 015 3/6/2016 3/26/2016 3/31/2016 13 5/12/2014 5/13/2014 2/8/2015 11 5/11/2014 5/12/2014 8 4/15/20164/18/2016 4/4/2015 4/4/2016 4 3/11/2016 3/15/2016 2/6/2015 2/7/2015 2/6/20152/10/2015 9 4/15/20164/18/2016 3 3/22/2016 3/25/2016 10 2/22/2015 2/24/2015 10 3/12/20143/13/2014 401 72 booking 101 E employee E guest 2/3/2015 7/3/2016 1 2/28/2015 2/3/2015 11 5/31/2014 3/5/2015 hotel room 101 212 91 100 100 100 100 100 110 110 2 2/4/2015 3 1/31/2014 401 2/1/2015 25/18/2015 5/23/2 2 3/4/2016 210 421 130 2/5/2015 135 4/1/2015 4/1/2016 160 160 160 212 214 2/5/2015 2/1/2015 412 411 321 410 312 312 4 190

Explanation / Answer

--Query 7. How many bookings have there been in each city?
SELECT h.Hotelcity,Count(b.guestNo) FROM booking b INNER JOIN Hotel h ON b.hotelNO=h.hotelNo
GROUP BY h.Hotelcity

/*Query 8: List each employee’s first name, last name,
their hotelNo, their manager’s first name and their manager’s last name.*/
SELECT e.empFirst,e.empLast,e.HotelNO,m.empFirst,m.empLast
FROM employee e LEFT JOIN employee m ON e.empid=m.mgrid;

--Query 9 which guests have yahoo email accounts?
SELECT * FROM guest WHERE guestEMail LIKE '%yahoo.com'

--Query 10. which hotel (by name) has the most expensive room ?
SELECT h.hotelName FROM hotel h INNER JOIN room r ON h.hotelNo=r.hotelNo
WHERE r.standardPrice = (Select MAX(standardPrice) FROM room);

--query11 which guests (by name) have not booked rooms in hotel 1?
SELECT (guestFirst+' '+guestLast) AS name FROM guest WHERE guestNo IN(
SELECT guestNO FROM booking where hotelNo<>1);

--Query 12. what is the average price of hotel rooms in Stillwater?
SELECT AVG(r.standardPrice) FROM hotel h INNER JOIN room r ON h.hotelNo=r.hotelNo
WHERE h.hotelCity='Stillwater'

--Query 13. List the count of the single rooms for
-- each hotel for any hotel that has less than 2 single rooms.
SELECT COUNT(type) FROM room
WHERE type='single'
group by hotelNo having COUNT(type)<2;

--query 14: drop the standard price column from the room table.
ALTER TABLE room DROP COLUMN standardPrice;

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