AdventureWorks Database: Add vacation and sick time to find total hours away from work
SQL Query - AdventureWorks: Exercise-138 with Solution
138. From the following table write a query in SQL to find a total number of hours away from work can be calculated by adding vacation time and sick leave. Sort results ascending by Total Hours Away.
Sample table: HumanResources.Employee
businessentityid|nationalidnumber|loginid |jobtitle |birthdate |maritalstatus|gender|hiredate |salariedflag|vacationhours|sickleavehours|currentflag|rowguid |modifieddate |organizationnode|
----------------+----------------+----------------------------+----------------------------------------+----------+-------------+------+----------+------------+-------------+--------------+-----------+------------------------------------+-----------------------+----------------+
1|295847284 |adventure-works\ken0 |Chief Executive Officer |1969-01-29|S |M |2009-01-14|true | 99| 69|true |f01251e5-96a3-448d-981e-0f99d789110d|2014-06-30 00:00:00.000|/ |
2|245797967 |adventure-works\terri0 |Vice President of Engineering |1971-08-01|S |F |2008-01-31|true | 1| 20|true |45e8f437-670d-4409-93cb-f9424a40d6ee|2014-06-30 00:00:00.000|/1/ |
3|509647174 |adventure-works\roberto0 |Engineering Manager |1974-11-12|M |M |2007-11-11|true | 2| 21|true |9bbbfb2c-efbb-4217-9ab7-f97689328841|2014-06-30 00:00:00.000|/1/1/ |
4|112457891 |adventure-works\rob0 |Senior Tool Designer |1974-12-23|S |M |2007-12-05|false | 48| 80|true |59747955-87b8-443f-8ed4-f8ad3afdf3a9|2014-06-30 00:00:00.000|/1/1/1/ |
5|695256908 |adventure-works\gail0 |Design Engineer |1952-09-27|M |F |2008-01-06|true | 5| 22|true |ec84ae09-f9b8-4a15-b4a9-6ccbab919b08|2014-06-30 00:00:00.000|/1/1/2/ |
6|998320692 |adventure-works\jossef0 |Design Engineer |1959-03-11|M |M |2008-01-24|true | 6| 23|true |e39056f1-9cd5-478d-8945-14aca7fbdcdd|2014-06-30 00:00:00.000|/1/1/3/ |
7|134969118 |adventure-works\dylan0 |Research and Development Manager |1987-02-24|M |M |2009-02-08|true | 61| 50|true |4f46deca-ef01-41fd-9829-0adab368e431|2014-06-30 00:00:00.000|/1/1/4/ |
8|811994146 |adventure-works\diane1 |Research and Development Engineer |1986-06-05|S |F |2008-12-29|true | 62| 51|true |31112635-663b-4018-b4a2-a685c0bf48a4|2014-06-30 00:00:00.000|/1/1/4/1/ |
9|658797903 |adventure-works\gigi0 |Research and Development Engineer |1979-01-21|M |F |2009-01-16|true | 63| 51|true |50b6cdc6-7570-47ef-9570-48a64b5f2ecf|2014-06-30 00:00:00.000|/1/1/4/2/ |
10|879342154 |adventure-works\michael6 |Research and Development Manager |1984-11-30|M |M |2009-05-03|true | 16| 64|true |eaa43680-5571-40cb-ab1a-3bf68f04459e|2014-06-30 00:00:00.000|/1/1/4/3/ |
-- more --
Sample table: Person.Person
businessentityid|persontype|namestyle|title|firstname |middlename |lastname |suffix|emailpromotion|additionalcontactinfo|demographics|rowguid |modifieddate |
----------------+----------+---------+-----+------------------------+----------------+----------------------+------+--------------+---------------------+------------+------------------------------------+-----------------------+
1|EM |false | |Ken |J |Sánchez | | 0| |[XML] |92c4279f-1207-48a3-8448-4636514eb7e2|2009-01-07 00:00:00.000|
2|EM |false | |Terri |Lee |Duffy | | 1| |[XML] |d8763459-8aa8-47cc-aff7-c9079af79033|2008-01-24 00:00:00.000|
3|EM |false | |Roberto | |Tamburello | | 0| |[XML] |e1a2555e-0828-434b-a33b-6f38136a37de|2007-11-04 00:00:00.000|
4|EM |false | |Rob | |Walters | | 0| |[XML] |f2d7ce06-38b3-4357-805b-f4b6b71c01ff|2007-11-28 00:00:00.000|
5|EM |false |Ms. |Gail |A |Erickson | | 0| |[XML] |f3a3f6b4-ae3b-430c-a754-9f2231ba6fef|2007-12-30 00:00:00.000|
6|EM |false |Mr. |Jossef |H |Goldberg | | 0| |[XML] |0dea28fd-effe-482a-afd3-b7e8f199d56f|2013-12-16 00:00:00.000|
7|EM |false | |Dylan |A |Miller | | 2| |[XML] |c45e8ab8-01be-4b76-b215-820c8368181a|2009-02-01 00:00:00.000|
8|EM |false | |Diane |L |Margheim | | 0| |[XML] |a948e590-4a56-45a9-bc9a-160a1cc9d990|2008-12-22 00:00:00.000|
9|EM |false | |Gigi |N |Matthew | | 0| |[XML] |5fc28c0e-6d36-4252-9846-05caa0b1f6c5|2009-01-09 00:00:00.000|
-- more --
Sample Solution:
-- Selecting FirstName, LastName, VacationHours, SickLeaveHours, and the sum of VacationHours and SickLeaveHours as "Total Hours Away" from the Employee and Person tables
SELECT
-- Selecting the FirstName column from the Person table
p.FirstName,
-- Selecting the LastName column from the Person table
p.LastName,
-- Selecting the VacationHours column from the Employee table
VacationHours,
-- Selecting the SickLeaveHours column from the Employee table
SickLeaveHours,
-- Calculating the sum of VacationHours and SickLeaveHours and labeling it as "Total Hours Away"
VacationHours + SickLeaveHours AS "Total Hours Away"
-- Joining the Employee and Person tables based on the BusinessEntityID
FROM
HumanResources.Employee AS e
JOIN
Person.Person AS p ON e.BusinessEntityID = p.BusinessEntityID
-- Ordering the result set by "Total Hours Away" in ascending order
ORDER BY
"Total Hours Away" ASC;
Explanation:
- This SQL code retrieves FirstName, LastName, VacationHours, and SickLeaveHours columns from the Employee and Person tables, and calculates the sum of VacationHours and SickLeaveHours as "Total Hours Away".
- The SELECT statement specifies the columns to be included in the result set.
- The JOIN clause joins the Employee and Person tables based on the BusinessEntityID to retrieve additional information about employees.
- The ORDER BY clause orders the result set by the calculated "Total Hours Away" column in ascending order.
- The result set will show employee names along with their vacation and sick leave hours, with a calculated total of hours away from work, sorted in ascending order by the total hours.
Sample Output:
firstname |lastname |vacationhours|sickleavehours|Total Hours Away| -----------+-----------------+-------------+--------------+----------------+ Hung-Fu |Ting | 0| 20| 20| Mandar |Samant | 0| 20| 20| Laura |Norman | 0| 20| 20| Min |Su | 1| 20| 21| Terri |Duffy | 1| 20| 21| Jim |Scardelis | 1| 20| 21| Krishna |Sunkammurali | 2| 21| 23| Nuan |Yu | 2| 21| 23| Roberto |Tamburello | 2| 21| 23| Olinda |Turner | 3| 21| 24| Houman |Pournasseh | 3| 21| 24| Michael |Sullivan | 3| 21| 24| ...
SQL AdventureWorks Editor:
Practice Online
Contribute your code and comments through Disqus.
Previous: Combine ProductModelID and Name columns from two tables.
Next: Tax difference between highest and lowest-taxed state or province.
What is the difficulty level of this exercise?
Test your Programming skills with w3resource's quiz.
It will be nice if you may share this link in any developer community or anywhere else, from where other developers may find this content. Thanks.
https://www.w3resource.com/sql-exercises/adventureworks/sql-adventureworks-exercise-138.php
- Weekly Trends and Language Statistics
- Weekly Trends and Language Statistics