Solved

Enhance SQL Query

Posted on 2014-01-27
4
104 Views
Last Modified: 2014-02-04
Dear Sir/Madam, I am seeking help in SQL used in Sybase IQ Client.  Please see attached spreadsheet.  I work in the transportation industry working with commercial airline passenger's air fares.  When data is requested by customers, I have to ensure that at least 3 airlines operate a certain route (i.e. New York JFK-London) prior to providing the data (security measure).  My current query, as seen in "Query1" tab in the attached, is performing this correctly.  This query is run route by route.  I am trying to find a way to run it for all routes, with the taking into account the 3-airline rule.  I am not having much luck so I turn to the EE's for input.  Please advise with any questions.  Thank you. James.
Experts-Exchange-Question-012714.xlsx
0
Comment
Question by:James0903
  • 2
  • 2
4 Comments
 
LVL 34

Accepted Solution

by:
Brian Crowe earned 500 total points
ID: 39813579
Let me know if we're on the right track here...

DECLARE @Quarter		INT,
	@Year				INT,
	@MinOpCarrierCount	INT = 3,
	@OriginWAC			INT = NULL,	--Leaving NULL returns for all originwac values
	@DestWAC			INT = NULL	--Leaving NULL returns for all destwac values

IF OBJECT_ID('tempdb..#Route') IS NOT NULL
	DROP TABLE #Route

SELECT [year], [quarter], originwac, destwac
INTO #Route
FROM XXX
WHERE ISNULL(@OriginWAC, originwac) = originwac
	AND ISNULL(@DestWAC, destwac) = destwac
	AND [year] = @Year
	AND [quarter] = @Quarter
        AND originwac < 100
	AND destwac > 100
GROUP BY [year], [quarter], originwac, destwac
HAVING COUNT(1) >= @MinOpCarrierCount;

SELECT X.[year],
	X.[quarter],
	X.ORIGIN,
	X.DEST,
	SUM(X.PASSENGERS) AS PAX,
	SUM(X.MKTFARE * X.PASSENGERS) AS REV,
	CAST((X.REV / X.PAX) AS NUMERIC(8,2)) AS AVG_FARE
FROM XXX AS X
INNER JOIN #Route AS R
	ON X.[year] = R.[year]
	AND X.[quarter] = R.[quarter]
	AND X.originwac = R.originwac
	AND X.destwac = R.destwac

Open in new window

0
 
LVL 34

Expert Comment

by:Brian Crowe
ID: 39813586
Not sure how or if the above query will work in a Sybase environment but you posted in a SQL Server topic area so I thought I'd give it a shot.
0
 

Author Comment

by:James0903
ID: 39815486
BriCrowe, thank you.  I will give it a try.  If there is a Sybase section I will post it there is the above code has any issues.  Thank you.
0
 

Author Closing Comment

by:James0903
ID: 39833186
BriCrowe, thank you for the query.  My priorities were shifted around so I have to put this on the back burner.  I appreciate your help.
0

Featured Post

Migrating Your Company's PCs

To keep pace with competitors, businesses must keep employees productive, and that means providing them with the latest technology. This document provides the tips and tricks you need to help you migrate an outdated PC fleet to new desktops, laptops, and tablets.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

International Data Corporation (IDC) prognosticates that before the current the year gets over disbursing on IT framework products to be sent in cloud environs will be $37.1B.
In this article we will learn how to fix  “Cannot install SQL Server 2014 Service Pack 2: Unable to install windows installer msi file” error ?
Familiarize people with the process of retrieving data from SQL Server using an Access pass-thru query. Microsoft Access is a very powerful client/server development tool. One of the ways that you can retrieve data from a SQL Server is by using a pa…
Using examples as well as descriptions, and references to Books Online, show the different Recovery Models available in SQL Server and explain, as well as show how full, differential and transaction log backups are performed

828 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question