Database Systems: Design, Implementation, & Management
13th Edition
ISBN: 9781337627900
Author: Carlos Coronel, Steven Morris
Publisher: Cengage Learning
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Chapter 7, Problem 21P
Program Plan Intro
Aggregate Functions:
SQL has some built-in functions and they are called as aggregate functions. SQL contains five built-in functions. They are:
- SUM – This function is used to add values from the particular column.
- Syntax: SELECT SUM(column_Name) FROM table_Name;
- COUNT – This is used to count the number of rows for the particular column.
- Syntax: SELECT COUNT(column_Name) FROM table_Name;
- MAX – This function is used to get the maximum value from the column.
- Syntax: SELECT MAX(column_Name) FROM table_Name;
- MIN – This function is used to get the minimum value from the column.
- Syntax: SELECT MIN(column_Name) FROM table_Name;
- AVG – This function is used to get the average of all the values from the column.
- Syntax: SELECT AVG(column_Name) FROM table_Name;
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Chapter 7 Solutions
Database Systems: Design, Implementation, & Management
Ch. 7 - Prob. 1RQCh. 7 - Explain why the following command would create an...Ch. 7 - What is a cross join? Give an example of its...Ch. 7 - What three join types are included in the outer...Ch. 7 - Using tables named T1 and T2, write a query...Ch. 7 - Prob. 6RQCh. 7 - Rewrite the following WHERE clause without the use...Ch. 7 - Explain the difference between an ORDER BY clause...Ch. 7 - Explain why the following two commands produce...Ch. 7 - What is the difference between the COUNT aggregate...
Ch. 7 - Prob. 11RQCh. 7 - Prob. 12RQCh. 7 - Prob. 13RQCh. 7 - Prob. 14RQCh. 7 - Prob. 15RQCh. 7 - What does it mean to say that SQL operators are...Ch. 7 - Prob. 17RQCh. 7 - Prob. 18RQCh. 7 - Prob. 19RQCh. 7 - Prob. 20RQCh. 7 - Given the employee information in Question 19,...Ch. 7 - Given the employee information in Question 19,...Ch. 7 - Prob. 23RQCh. 7 - Prob. 24RQCh. 7 - Prob. 25RQCh. 7 - What Oracle function should you use to calculate...Ch. 7 - What string function should you use to list the...Ch. 7 - Prob. 28RQCh. 7 - Given the structure and contents of the...Ch. 7 - Using the EMPLOYEE, JOB, and PROJECT tables in the...Ch. 7 - Write the SQL code that will produce the same...Ch. 7 - Prob. 4PCh. 7 - Write the SQL code to validate the ASSIGN_CHARGE...Ch. 7 - Using the data in the ASSIGNMENT table, write the...Ch. 7 - Prob. 7PCh. 7 - Prob. 8PCh. 7 - Prob. 9PCh. 7 - Prob. 10PCh. 7 - Generate a listing of all purchases made by the...Ch. 7 - Prob. 12PCh. 7 - Prob. 13PCh. 7 - Modify the query in Problem 13 to include the...Ch. 7 - Prob. 15PCh. 7 - Prob. 16PCh. 7 - Prob. 17PCh. 7 - Prob. 18PCh. 7 - Prob. 19PCh. 7 - Prob. 20PCh. 7 - Prob. 21PCh. 7 - Create a query to find the balance characteristics...Ch. 7 - Prob. 23PCh. 7 - Prob. 24PCh. 7 - Prob. 25PCh. 7 - Find the total value of the product inventory. The...Ch. 7 - Prob. 27PCh. 7 - Write a query to display the SKU (stock keeping...Ch. 7 - Prob. 29PCh. 7 - Prob. 30PCh. 7 - Prob. 31PCh. 7 - Prob. 32PCh. 7 - Prob. 33PCh. 7 - Prob. 34PCh. 7 - Prob. 35PCh. 7 - Prob. 36PCh. 7 - Prob. 37PCh. 7 - Prob. 38PCh. 7 - Prob. 39PCh. 7 - Prob. 40PCh. 7 - Prob. 41PCh. 7 - Prob. 42PCh. 7 - Prob. 43PCh. 7 - Prob. 44PCh. 7 - Prob. 45PCh. 7 - Prob. 46PCh. 7 - Prob. 47PCh. 7 - Prob. 48PCh. 7 - Prob. 49PCh. 7 - Prob. 50PCh. 7 - Prob. 51PCh. 7 - Prob. 52PCh. 7 - Prob. 53PCh. 7 - Prob. 54PCh. 7 - Prob. 55PCh. 7 - Prob. 56PCh. 7 - Prob. 57PCh. 7 - Prob. 58PCh. 7 - Prob. 59PCh. 7 - Prob. 60PCh. 7 - Prob. 61PCh. 7 - Prob. 62PCh. 7 - Prob. 63PCh. 7 - Prob. 64PCh. 7 - Prob. 65PCh. 7 - Prob. 66PCh. 7 - Prob. 67PCh. 7 - Prob. 68PCh. 7 - Prob. 69PCh. 7 - Prob. 70PCh. 7 - Prob. 71PCh. 7 - Prob. 72PCh. 7 - Prob. 73PCh. 7 - Prob. 74PCh. 7 - Prob. 75PCh. 7 - Prob. 76PCh. 7 - Prob. 77PCh. 7 - Prob. 78PCh. 7 - Prob. 79PCh. 7 - Prob. 80PCh. 7 - Prob. 81PCh. 7 - Prob. 82PCh. 7 - Prob. 83PCh. 7 - Prob. 84PCh. 7 - Prob. 85PCh. 7 - Prob. 86PCh. 7 - Prob. 88PCh. 7 - Prob. 89PCh. 7 - Prob. 90PCh. 7 - Prob. 91PCh. 7 - Prob. 92PCh. 7 - Prob. 93PCh. 7 - Prob. 94PCh. 7 - Prob. 95PCh. 7 - Prob. 96PCh. 7 - Prob. 97PCh. 7 - Prob. 98PCh. 7 - Prob. 99PCh. 7 - Prob. 100PCh. 7 - Prob. 101PCh. 7 - Prob. 102PCh. 7 - Prob. 103PCh. 7 - Prob. 104PCh. 7 - Prob. 105PCh. 7 - Prob. 106PCh. 7 - Prob. 107PCh. 7 - Prob. 108PCh. 7 - Prob. 109P
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- Find the total revenue generated by each product in the past quarter (last 3 months), you would need the following tables and their respective columns: Orders table: order_id (Primary key) order_date Order_details table: order_id (Foreign key) product_id (Foreign key) quantity price per unit Products table: product_id (Primary key) product_namearrow_forwardIn the Summary sheet, calculate average and median sales and commissions. Use the named ranges shown in cells A23:B26. In cell B5, enter a formula to calculate the average annual sales for all sales associates. Use the named range AnnualSales.arrow_forwardList the number of customers living at each state that is included in the Customer_T table.arrow_forward
- create table queries using sinplified sales table 1. Which manufacturers are located in the city of New York? Show the manufacturer's name, state, postal code, and contact person. 2. Show product information for white shoes in the 'sneakers' category that cost more than $50 and have a product description that begins with the letter "b" or "t". Show only the product name, its composition, and its list price. 3. Show the product name, description, and category for all shoes with a list price of $150 or more and in one of the following categories: sneakers, boots, or sandals. Order the output alphabetically by product name. 4. How many customers do we have with a last name starting with a 'Q' living in each city? Your query should display two columns, one named cust_num and one named city. Sort the results alphabeticaly by city. 5. Show the product name, list price, customer state (call it 'CustState'), and manufacturer state (call it 'ManState') for all products made by manufacturers in…arrow_forwardList the names and number of employees supervised (label this value HeadCount) for each supervisor who supervises more than two employees.arrow_forwardShow the average salary for each different job_id group in the employee tablearrow_forward
- List all vendors with their address(city, state,zipcode) for all the vendors who have credited account (credit total>0)) Hint:Vendors & Invoices tables with credit total column WHERE vendors.vendor id = invoices.vendor id AND CREDIT_TOTAL>0; %3Darrow_forwardList the balance characteristics of the customers who have made purchases during the current invoice cycle—that is, for the customers who appear in the INVOICE table. The results of this query are shown in Figure P7.37.arrow_forwardList the names of all customers that have a credit limit of $7,500 or lessarrow_forward
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