# A set of constants, each representing a list index for station informat ID = 0 NAME LATITUDE = 2 LONGITUDE = 3 САРАСІТY - 4 BIKES_AVAILABLE = 5 1 %3D DOCKS_AVAILABLE 6 NO_KIOSK = 'SMART' # For use in the get_lat_lon_distance helper function EARTH_RADIUS = 6371 # SAMPLE DATA TO USE IN DOCSTRING EXAMPLES SAMPLE_STATIONS [7090, 'Danforth Ave / Lamb Ave', 43.681991, -79.329455, 15, 4, 10], [7486, 'Gerrard St E / Ted Reeve Dr', 43.684261, -79.299332, 24, 5, 19], [7571, 'Highfield Rd / Gerrard St E 43.671685, -79.325176, 19, 14, 5]] SMART', HANDOUT_STATIONS [7000, 'Ft. York / Capreol Crt.', 43.639832, -79.395954, 31, 20, 11], [7001, 'Lower Jarvis St SMART / The Esplanade', 43.647992, -79.370907, 15, 5, 10]]

# A set of constants, each representing a list index for station informat ID = 0 NAME LATITUDE = 2 LONGITUDE = 3 САРАСІТY - 4 BIKES_AVAILABLE = 5 1 %3D DOCKS_AVAILABLE 6 NO_KIOSK = 'SMART' # For use in the get_lat_lon_distance helper function EARTH_RADIUS = 6371 # SAMPLE DATA TO USE IN DOCSTRING EXAMPLES SAMPLE_STATIONS [7090, 'Danforth Ave / Lamb Ave', 43.681991, -79.329455, 15, 4, 10], [7486, 'Gerrard St E / Ted Reeve Dr', 43.684261, -79.299332, 24, 5, 19], [7571, 'Highfield Rd / Gerrard St E 43.671685, -79.325176, 19, 14, 5]] SMART', HANDOUT_STATIONS [7000, 'Ft. York / Capreol Crt.', 43.639832, -79.395954, 31, 20, 11], [7001, 'Lower Jarvis St SMART / The Esplanade', 43.647992, -79.370907, 15, 5, 10]]

CMPTR

3rd Edition

ISBN:9781337681872

Author:PINARD

Publisher:PINARD

Chapter18: Maintaining And Querying A Database

Section: Chapter Questions

Problem 2QY

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Given information: # A set of constants, each representing a list index for station information.ID = 0NAME = 1LATITUDE = 2LONGITUDE = 3CAPACITY = 4BIKES_AVAILABLE = 5DOCKS_AVAILABLE = 6NO_KIOSK = 'SMART' # For use in the get_lat_lon_distance helper functionEARTH_RADIUS = 6371 # SAMPLE DATA TO USE IN DOCSTRING EXAMPLES SAMPLE_STATIONS = [ [7090, 'Danforth Ave / Lamb Ave', 43.681991, -79.329455, 15, 4, 10], [7486, 'Gerrard St E / Ted Reeve Dr', 43.684261, -79.299332, 24, 5, 19], [7571, 'Highfield Rd / Gerrard St E - SMART', 43.671685, -79.325176, 19, 14, 5]] HANDOUT_STATIONS = [ [7000, 'Ft. York / Capreol Crt.', 43.639832, -79.395954, 31, 20, 11], [7001, 'Lower Jarvis St SMART / The Esplanade', 43.647992, -79.370907, 15, 5, 10]] Given helper function: (Hint: this function is to be used to complete the docstring below) def get_lat_lon_distance(lat1: float, lon1: float, lat2: float, lon2: float) -> float: """Return the…
def return_bike(station_id: int, stations: List["Station"]) -> bool: """Update the available bike count and the docks available count for station in stations with id station_id as if a single bike was added, making an additional dock unavailable. Return True if and only if the return was successful. Precondition: station_id will appear in stations. >>> available_dock_station 43.681991, -79.329455, 15, 4, 10] >>> station_id >> original_bikes_available >> original_docks_available >> return_bike(station_id, [available_dock_station]) [7090, 'Danforth Ave / Lamb Ave', \ available_dock_station[ID] available_dock_station[BIKES_AVAILABLE] available_dock_station[DOCKS_AVAILABLE] True >> original_bikes_available + 1 available_dock_station[BIKES_AVAILABLE] == True >>> original_docks_available 1 available_dock_station[D0CKS_AVAILABLE] == True >>> no_dock_station 43.681991, -79.329455, 15, 15, 0] >>> station_id = no_dock_station[ID] >>> original_bikes_available = no_dock_station[BIKES_AVAILABLE] >>…
calculate_new_balance Given a starting balance (a number), and a list of transaction tuples, calculate the final balance for an account. Transaction tuples are of the shape ("description", amount, "withdrawal") , or ("description", amount, "deposit"). The last entry in the tuple will be either "withdrawal" or "deposit". Every withdrawal decreases the balance of the account by the specified amount, and every deposit increases the balance. The return value is the new account balance, as a number. (which could be negative) Sample calls should look like: >>> calculate_new_balance(100, [("payday", 20, "deposit"), ("new shoes", 50, "withdrawal"), ("illicit winnings", 200, "deposit")])270>>> calculate_new_balance(100, [])100
RosterGrades=readtable('RosterScores.txt'); RosterGrades.Grades=cell([size(RosterGrades,1),1]); for i=1:size(RosterGrades,1) if RosterGrades.Scores(i)>=90 RosterGrades.Grades{i}='A'; elseif RosterGrades.Scores(i)>=80 RosterGrades.Grades{i}='B'; elseif RosterGrades.Scores(i)>=70 RosterGrades.Grades{i}='C'; elseif RosterGrades.Scores(i)>=60 RosterGrades.Grades{i}='D'; else RosterGrades.Grades{i}='F'; end end RosterGrades writetable(RosterGrades,'RosterScores.txt')
The Save Transaction button depicted in the screen attached is used to save relevant data to the sales table and the salesdetails tables from the depicted schema. When this button is clicked it calls the saveTransaction() function that is within the PosDAO class, it passes to this function an ArrayList of salesdetails object, this list contains the data entered into the jTable which is the products and qty being sold.Write the saveTransaction function. You are to loop through the items and get the total sales, next you are to insert the current date and the total sales into the sales table. Reminder that the sales table SalesNumber field is set to AUTO-INCREMENT, hence the reason for only entering the total sales and current date in sales table.
MySql Workbench CREATE TABLE students ( id INT PRIMARY KEY, first_name VARCHAR(50), last_name VARCHAR(50), age INT, major VARCHAR(50), faculty VARCHAR(50)); CREATE TABLE location ( id INT PRIMARY KEY, name VARCHAR(50), rooms INT); CREATE TABLE faculty ( id INT PRIMARY KEY, name VARCHAR(50), department_id INT); 1. List last name of all students whose first name is longer than 4 letters in ascending order accordingto the last name. Duplicated rows should be removed from the output.2. Count the total number of rooms in Location.3. Find the number of students in each major.4. Find the number of employees in each department who get no commission or have salary less than5000.5. Find the maximum salary of employees in each department that the employee was hired 15 yearsbefore now. *hint: user TIMESTAMPDIFF(<unit type>,<Date_value 1>,<Date_value 2>), the unitcan be YEAR, MONTH, DAY, HOUR, etc...
The database has three tables for tracking horse-riding lessons: Horse with columns: ID - primary key RegisteredName Breed Height BirthDate Student with columns: ID - primary key FirstName LastName Street City State Zip Phone EmailAddress LessonSchedule with columns: HorseID - partial primary key, foreign key references Horse(ID) StudentID - foreign key references Student(ID) LessonDateTime - partial primary key Write a SELECT statement to create a lesson schedule with the lesson date/time, horse ID, and the student's first and last names. Order the results in ascending order by lesson date/time, then by horse ID. Unassigned lesson times (student ID is NULL) should not appear in the schedule. Hint: Perform a join on the Student and LessonSchedule tables, matching the student IDs
The database has three tables for tracking horse-riding lessons: Horse with columns: ID - primary key RegisteredName Breed Height BirthDate Student with columns: ID - primary key FirstName LastName Street City State Zip Phone EmailAddress LessonSchedule with columns: HorseID - partial primary key, foreign key references Horse(ID) StudentID - foreign key references Student(ID) LessonDateTime - partial primary key Write a SELECT statement to create a lesson schedule with the lesson date/time, horse ID, and the student's first and last names. Order the results in ascending order by lesson date/time, then by horse ID. Unassigned lesson times (student ID is NULL) should not appear in the schedule.
Task 3: The Car Maintenance team wants to insert and store the following maintenance types to the MAINTENANCE_TYPES table: ID: 1; Description: Tire Change; Price: 50 ID: 2; Description; Oil Change; Price: 45 ID: 3; Description; Full Cleaning; Price: 100 ID: 4; Description; Gas Pump Change; Price: 145 Add the four maintenance types to the MAINTENANCE_TYPES table.
DataBaseMid2021-2.doc [Compatibility Mode] - Word Sign in Table Tools File Home Insert Design Layout References Mailings Review View Help Design Layout O Tell me what you want to do 요 Share SECOND OUENIVAR The following Data Base shows some sample data values for an extended form of the Zoo and Visitors. The significance of Visiting row is that the Visitor visits a specified Zoo in a specified date. Zoo : Zno zi Visitors : City Gaza Nusirat Yno Name Address Age V1 Fuad Gaza 55 Z2 V2 Rami Gaza 20 Z3 Gaza V3 Ahmed Nusirat 31 V4 Ahmed Gaza 45 V5 Ali Rafa 20 Visiting: Vno Zno Z1 Date V2 11-11-1998 15-10-1999 V1 Z3 11-01-2003 11-01-2003 06-03-1997 V2 Z2 V2 Z3 V1 Z2 V3 Z1 06-031997 V3 Z3 11-11-2005 V4 Z3 11-11-2005 V2 Z2 12-12-2005 Given the following relational Algebra querya Visitors Þyisitora.Nno = Visiting.VnolIIxna.Znal Visiting) A IIzag [8 City = “Caza' ( Zoo)]1 A- Find the result relation of the above query B What was the request of the relational algebra query above (make a query…
A real Estate Company has in its poššession a long list of landlords and the rent cost of their two bedroom apartments, as shown on table 1. There is the need for an Application program that will allow a user at the company to load the said list into a computer program, i.e. the list of landlords and the cost of rent. The app must also allow users to search for apartments they can afford. Apart from the list in the table, the App should be able to take as input the maximum amount a tenant is willing to spend on a two-bedroom apartment and then display a list of landlords whose apartments can be rented with that amount. Table 1: Landlords and Cost of rent Landlord Ama Dua Ali Dulon John Togbe Abena Nyame Kofi Duku Cost of rent (GHC) 800.00 950.00 2,500.00 600.00 2,300.00
assume that a database has a table named Stock, with thefollowing columns:Column Name TypeTrading_Symbol nchar(10)Company_Name nchar(25)Num_Shares intPurchase_Price moneySelling_Price money Write a Select statement that returns only the Trading_Symbol column from every row in the table.