Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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- It's best to utilize an Oracle function to determine how many days have passed since your birthday.arrow_forwardTask 4: The InstantRide User Satisfaction team is a core team for InstantRide, and they focus on increasing the customer satisfaction. They want to learn the travel time for each ride in the system. You need to return the USER_ID, and the TRAVEL_TIME column which is calculated using the TIMEDIFF function on the TRAVEL_END_TIME and the TRAVEL_START_TIME.arrow_forwardCalculating the number of days that have passed between your birthday and the current date requires the usage of an Oracle function, which you should make advantage of.arrow_forward
- You need to make use of an Oracle function in order to compute the number of days that have passed from your birthday up to the present moment.arrow_forwardBelow are some rows of the PROVIDERS table for a factory: PCODE 10192 98411 0489035 NAME Hans, Inc. Tools and More Motors Inc. PHONE 231 - 3092 231-1029 993 - 1821 All providers from the factory zone of the city start with 231. You want to get the providers that are in the factory zone of the city. Which of the following is more appropriate? O a. O b. SELECT * FROM PROVIDERS WHERE PHONE LIKE '% 231' O C. O d. SELECT * FROM PROVIDERS WHERE PHONE LIKE $231%' SELECT * FROM PROVIDERS WHERE PHONE LIKE 231 SELECT * FROM PROVIDERS WHERE PHONE LIKE '%231%'arrow_forwardStudents: Johnson, Williams, Matt, Jones, Eric, Lili, John and Jason, whose grades are listed below. Each column is the grades each student received. There are 8 students with 10 grades each. Johnson: 79, 92, 85, 0, 100, 64, 72, 99, 90, 86 Williams: 80, 75 93, 94, 0, 90, 89, 88, 87, 86 Matt: 82, 67, 72, 74, 89, 0, 70, 89, 100, 76 Jones: 85, 84, 82.5, 82, 84, 80, 80.5, 90, 96, 85 Eric: 90, 91, 87, 85.5, 86.5, 0, 90, 90, 91, 92 Lili: 60, 75, 81, 70, 80, 81, 94, 67.5, 99, 98 John: 79,0, 74, 96, 88.5, 88, 0, 100, 86, 83 Jason: 89, 90, 90, 85, 85, 90, 91, 88, 100, 79 Write user-defined functions or build-in functions (e.g., sum, mean, max, min, etc.) to calculate: The Average Grade of each student; this average should be a vector. The average of the class; this average is a scalar vector. The highest grade among the Average Grade of Each Student The lowest grade among the Average Grade of Each Student Show a table with each student's name, average grade and letter score using A, B, C, D, F…arrow_forward
- What's wrong with this cell?arrow_forwardTo find out how many years have passed since your birthday, you may utilize an Oracle function.arrow_forwardMinimize the following DFA: 0 1 →90 q1 90 91 qo 92 92 93 91 *q3 93 90 94 93 95 95 96 q4 96 95 96 q7 96 q3 Hint: Use the "table filling method" for minimizing your DFA (if needed).arrow_forward
- Use Python Code Your task is : Number of reported COVID-19 deaths by country. (Use pandas to read the csv table. Example : df = pd.read_csv('Covid19Deaths.csv') then do the code using the dataframe) COVID-19 Deaths table (csv): Province/State Country/Region Lat Long ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## 2/1/2020 2/2/2020 2/3/2020 2/4/2020 2/5/2020 2/6/2020 2/7/2020 2/8/2020 2/9/2020 ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## 3/1/2020 3/2/2020 3/3/2020 3/4/2020 3/5/2020 3/6/2020 3/7/2020 3/8/2020 3/9/2020 ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## 4/1/2020 4/2/2020 4/3/2020 4/4/2020 4/5/2020 4/6/2020 4/7/2020 Afghanistan 33 65 0 0 0 0 0 0 0 0…arrow_forwardA simple Oracle function may determine the number of years since your birth by comparing today's date with your birthday.arrow_forwardThe InstantRide Driver Relationship team wants to learn how many travels each driver has done in the month of October. You need to send them the DRIVER_ID, and two calculated columns: DAY and RIDES. The DAY column is calculated using the DAY() function with the TRAVEL_START_TIME as the argument. The RIDES column is calculated by using the COUNT() function to determine the number of rides given for each day. Filter the results with the MONTH function.arrow_forward
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