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Below is the answer that I have but it is incorrect can anyone help?     select PROJ_NUM, ROUND(SUM(ASSIGN_HOURS),2) as 'TOTAL_HOURS', ROUND(SUM(ASSIGN_CHARGE),2) as 'TOTAL_CHARGE' from ASSIGNMENT -- from ASSIGNMENT table group by PROJ_NUM; -- group by to aggregate per PROJ_NUM

Below is the answer that I have but it is incorrect can anyone help?     select PROJ_NUM, ROUND(SUM(ASSIGN_HOURS),2) as 'TOTAL_HOURS', ROUND(SUM(ASSIGN_CHARGE),2) as 'TOTAL_CHARGE' from ASSIGNMENT -- from ASSIGNMENT table group by PROJ_NUM; -- group by to aggregate per PROJ_NUM

Database System Concepts
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
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Below is the answer that I have but it is incorrect can anyone help?
 
 
select PROJ_NUM, ROUND(SUM(ASSIGN_HOURS),2) as 'TOTAL_HOURS', ROUND(SUM(ASSIGN_CHARGE),2) as 'TOTAL_CHARGE'

from ASSIGNMENT -- from ASSIGNMENT table

group by PROJ_NUM; -- group by to aggregate per PROJ_NUM
 
PROJ_NUM 15 18 22 SQL Viewer 25 + TOTAL_HOURS 20.50 23.70 27.00 19.40 TOTAL_CHARGE 1806.52 1544.80 2593.16 1668.16
Transcribed Image Text:PROJ_NUM 15 18 22 SQL Viewer 25 + TOTAL_HOURS 20.50 23.70 27.00 19.40 TOTAL_CHARGE 1806.52 1544.80 2593.16 1668.16
Problem 7 Write a query to produce the total number of hours and charges for each of the projects represented in the ASSIGNMENT table, sorted by project number. The output is shown in Figure P7.7. PROJ NUM 15 18 22 25 SumOfASSIGN HOURS 20.5 23.7 27.0 19.4 Figure P7.7 Task SumOfASSIGN_CHARGE 1806.52 1544.80 2593.16 1668.16
Transcribed Image Text:Problem 7 Write a query to produce the total number of hours and charges for each of the projects represented in the ASSIGNMENT table, sorted by project number. The output is shown in Figure P7.7. PROJ NUM 15 18 22 25 SumOfASSIGN HOURS 20.5 23.7 27.0 19.4 Figure P7.7 Task SumOfASSIGN_CHARGE 1806.52 1544.80 2593.16 1668.16
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