Problem 21 Provide a summary of customer balance characteristics for customers who made purchases. Include the minimum balance, maximum balance, and average balance, as shown in Figure P7.21. Minimum Balance 0.00 Figure P7.21 Maximum Balance 345.86 Average Balance 70.30

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
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I need help with this problem, the code below does not work as it is giving me 112.48 for the Average Balance. So the below code is not accurate for the image of the problem that I added below.

SELECT MIN(CUS_BALANCE) AS "Minimum Balance", MAX(CUS_BALANCE) AS "Maximum Balance", ROUND(AVG(CUS_BALANCE), 2) AS "Average Balance" FROM CUSTOMER WHERE CUS_CODE IN (SELECT CUS_CODE FROM INVOICE);

 

Problem 21
Provide a summary of customer balance characteristics for customers who made purchases.
Include the minimum balance, maximum balance, and average balance, as shown in Figure
P7.21.
Minimum Balance
0.00
Figure P7.21
Maximum Balance
345.86
Average Balance
70.30
Transcribed Image Text:Problem 21 Provide a summary of customer balance characteristics for customers who made purchases. Include the minimum balance, maximum balance, and average balance, as shown in Figure P7.21. Minimum Balance 0.00 Figure P7.21 Maximum Balance 345.86 Average Balance 70.30
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