w3resource

AdventureWorks Database: Find the differences in sales quota for the next quarters

SQL Query - AdventureWorks: Exercise-111 with Solution

111. From the following table write a query in SQL to obtain the difference in sales quota values for a specified employee over subsequent calendar quarters. Return year, quarter, sales quota, next sales quota, and the difference in sales quota. Sort the result set on year and then by quarter, both in ascending order.

Sample table: Sales.SalesPersonQuotaHistory


Click to view Full table

Sample Solution:

SELECT date_part('year',quotadate) AS Year, date_part('quarter',quotadate) AS Quarter, SalesQuota AS SalesQuota,  
       LEAD(SalesQuota,1,0) OVER (ORDER BY date_part('year',quotadate), date_part('quarter',quotadate)) AS NextQuota,  
   SalesQuota - LEAD(SalesQuota,1,0) OVER (ORDER BY date_part('year',quotadate), date_part('quarter',quotadate)) AS Diff  
FROM sales.salespersonquotahistory  
WHERE businessentityid = 277 AND date_part('year',quotadate) IN (2012,2013)  
ORDER BY date_part('year',quotadate), date_part('quarter',quotadate);

Sample Output:

year  |quarter|salesquota|nextquota|diff   |
------+-------+----------+---------+-------+
2012.0|    1.0|    952000|  1600000|-648000|
2012.0|    2.0|   1600000|  1352000| 248000|
2012.0|    3.0|   1352000|   839000| 513000|
2012.0|    4.0|    839000|  1369000|-530000|
2013.0|    1.0|   1369000|  1171000| 198000|
2013.0|    2.0|   1171000|   971000| 200000|
2013.0|    3.0|    971000|   714000| 257000|

SQL AdventureWorks Editor:

Practice Online


Contribute your code and comments through Disqus.

Previous: Compare year-to-date sales between employees for specific terrotery.
Next: Obtain the salary percentile of each employee for a department.


What is the difficulty level of this exercise?

Test your Programming skills with w3resource's quiz.



Follow us on Facebook and Twitter for latest update.

SQL: Tips of the Day

How to request a random row in SQL?

Select a random row with MySQL:

SELECT column FROM table
ORDER BY RAND()
LIMIT 1

Select a random row with PostgreSQL:

SELECT column FROM table
ORDER BY RANDOM()
LIMIT 1

Select a random row with Microsoft SQL Server:

SELECT TOP 1 column FROM table
ORDER BY NEWID()

Select a random row with IBM DB2:

SELECT column, RAND() as IDX 
FROM table 
ORDER BY IDX FETCH FIRST 1 ROWS ONLY

Select a random record with Oracle:

SELECT column FROM
( SELECT column FROM table
ORDER BY dbms_random.value )
WHERE rownum = 1

Database: SQL Server, PostgreSQL Server, MySQL

Ref: https://bit.ly/39n35HP

 





We are closing our Disqus commenting system for some maintenanace issues. You may write to us at reach[at]yahoo[dot]com or visit us at Facebook