Ashley has a data set of sales transactions in the following format Cust Gender Clothing Tech 1 Female 246 64 2 Male 171 345 130 41 Male I 52 58 Which of the following functions will return the average sales for the technology department for females in R? Multiple Choice AVERAGEIF(82.8131, "Female", D2:D131) AVERAGEIF(D2D131, "Female", B2D131) tapply(myDeta$Gender, myDataSTech, mean) tapply(myDataSTech, myData Gender, mean)

Ashley has a data set of sales transactions in the following format Cust Gender Clothing Tech 1 Female 246 64 2 Male 171 345 130 41 Male I 52 58 Which of the following functions will return the average sales for the technology department for females in R? Multiple Choice AVERAGEIF(82.8131, "Female", D2:D131) AVERAGEIF(D2D131, "Female", B2D131) tapply(myDeta$Gender, myDataSTech, mean) tapply(myDataSTech, myData Gender, mean)

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Similar questions

You have the following tables: MANAGERS (MANAGER_ID, LAST_NAME, FIRST_NAME, DEPARTMENT) ACCOUNTS (ACCOUNT_NUMBER, MANAGER_ID, CUST_ID, BALANCE) CUSTOMERS (CUST_ID, LAST_NAME, FIRST_NAME) Write a SQL statement that lists account number, balance, MANAGER’s last name, CUSTOMER ID, and CUSTOMER’s last name for every account in the ACCOUNTS table.
Q5) What is the normalization of the following table, where the primary keys are underlined: Note: all the data in cells of the table are already atomic. OrderID Order Date 1006 1006 10/24/2010 1006 1007 10/24/2010 1007 10/24/2010 10/25/2010 10/25/2010 Customer Customer Customer ProductID Product ID Name Address Description 2 2 2 6 6 Value Furniture Value Furniture Value Furniture Plano, TX Plano, TX Plano, TX Furniture Boulder, Gallery CO Furniture Boulder, Gallery CO 7 5 4 11 Dining Table Writer's Desk Product Product Finish Standard Price 4-Dr Dresser Natural 800.00 Ash Cherry 325.00 Entertainment Natural 650.00 Center Maple 500.00 4 Entertainment Natural 650.00 Center Maple Ordered Quantity 2 2 1 4 3
The following two SQL statements will produce the same results. SELECT P_DESCRIPT, P_QOH,P_PRICE FROM PRODUCT WHERE P_QOH >(SELECT P_QOH FROM PRODUCT WHERE P_CODE='11QER/31') AND P_PRICE>(SELECT P_PRICE FROM PRODUCT WHERE P_CODE='11QER/31'); SELECT P_DESCRIPT, P_QOH,P_PRICE FROM PRODUCT WHERE (P_QOH,P_PRICE) > (SELECT P_QOH,P_PRICE FROM PRODUCT WHERE P_CODE='11QER/31'); A) True B) False
Use a data set of property value from 2007 - 2019. The data contains sale price for houses and units with 1, 2, 3, 4, and 5 bedroom. The data is: date of sale; price in dollars; property type (unit or house); number of bedrooms Using R, calculate and show the mean price of the house properties and unit properties. ```{r} ```
Write a stored procedure named updateUnitsOnOrder(). The updateUnitsOnOrder ()procedure should update the UnitsOnOrder field of those products that are discontinued. It should set the UnitsOnOrder field to 99 for those discontinued products. Hint: There is no need to use cursor processing for this stored procedure.
How to learn creating user-defined functions in sql - IsNewHire: Take a hire date as an argument, and return 1 if their tenure at the company is less than two years, otherwise return 0. After your user-defined functions add SELECT statements calling those functions and illustrating their use: if possible use Aventurework2019 dayabase for function
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
Write SQL statements for given questions in order to get familiar to basicSQL data manipulation statements by(use MySQL application) using insert using update using alter create table2 Problem descriptionQuestions are listed below. You will be using tables created by demo.sql script. 1. Insert a row into emp table using column names ename, empno and hiredate (EMPLOYEE1, 1234,CURRENT DATE()) 2. Insert a row into dept table without using column names (SOFTWARE, 50) 3. Insert commission employees into bonus table with all required values 4. Update ’SOFTWARE’ department’s location to ’IZMIR’ in dept table 5. Update salaries of all employees increasing by %10 in emp table 6. Update emp table such that set salary of employees with null values to average salary of salesmans inbonus table 7. Delete employee with empno 1234 in emp table 8. Delete departments that with no employees in dept table 9. Delete all records in bonus table 10. Create table named employees with columns…
SQL Database Write PL/SQL or T-SQL procedures to accomplish the following tasks: Obtain the first name and last name, separated by a space, of the guide whose number currently is stored in I_GUIDE_NUM. Place these values in the variables I_FIRST_NAME and I_LAST_NAME. Output the contents of I_GUIDE_NUM, I_FIRST_NAME, and I_ LAST_NAME. Obtain the number of persons, customer number, and customer last name for every reservation whose ID currently is stored in I_RESERVATION_ID. Place these values in the variables I_NUM_PERSONS, I_CUSTOMER_NUM, and I_LAST_NAME, respectively. Output the contents of I_NUM_PERSONS, I_CUSTOMER_NUM, and I_LAST_NAME. Add a row to the GUIDE table. Change the last name of the guide whose number is stored in I_GUIDE_NUM to the value currently found in I_LAST_NAME. Delete the guide whose number is stored in I_GUIDE_NUM
Problem Your task is to write an SQL query that uses SQL's time constants to dynamically determine the timezone the database server is configured to use. Your query should return the timezone as a single string value with the timezone offset relative to the Coordinated Universal Time (UTC). The single output column should be named tz_offset, and the value should be in the form: UTC: where and use two digits in 24-hour format, padded with leading zeroes if necessary. Example: if the server used India's timezone the output should be: | tz_offset | | UTC+05:30 (1 row) query.sql> init.sql 1
Execute the following statements using MYSQL: 1.Create a Trigger "trigger regno" for the salesman table (Before INSERT) set the value as O for the experience > 7 and evaluate it. Also write the syntax to drop the Trigger "trigger regno* 2. Insert a value for Customer table (#Last 3 digit of your register no, #Your name, Vellore, 55, 010). Insert a value for salesman table ("10", #Your name, 5, 4000). 3. List out the number of customers in each city by arranging them from low to high. ( 4. Select all the salesman who's work experience is between 4 and 8.
https://1drv.ms/x/s!Av-KKmo42J4EgXJFqbsHsb_jUdpA 1) The baseball worksheet contains US baseball player's team, position, and salary. Determine how many times the mode of baseball player’s salary is appeared in the data set? Group of answer choices 16 28 21 18 2) The baseball worksheet contains US baseball player’s team, position, and salary. Determine the shape of the distribution of baseball player’s salary and skewness value. Group of answer choices 1.84 and moderately skewed to left 1.84 and Highly skewed to right -1.84 and moderately skewed to right -1.84 and highly skewed to Left 3) The baseball worksheet contains US baseball player’s team, position, and salary. what is the second quartile of baseball player’s salary? Group of answer choices 4010021 4010054 1880000 1950347