Solved

SQL Query

Posted on 2011-03-21
4
323 Views
Last Modified: 2012-05-11
I have a SQL Query that takes some time to return answer.  Is there a way to speed up the response?
The table has about 5,000,000 rows of data.

SELECT vol FROM tblVolDelta13_18 WHERE [deltaId] = '50' and [loadTime] = '25200' and [expiryId] = '2' and [loadDate] = '40623'

Generally, the idea is to retreive the vol data for the latest date.  Running this query does take about 30 seconds to retreive the answer.

Thanks,
0
Comment
Question by:blueteam
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
4 Comments
 
LVL 32

Assisted Solution

by:Ephraim Wangoya
Ephraim Wangoya earned 25 total points
ID: 35184354

It may just be a case of indexes

Are all the fields in your where clause indexed
0
 
LVL 9

Accepted Solution

by:
Roman Gherman earned 25 total points
ID: 35184369
Hi,
You're doing checking for a string, why is that?
I think that those columns which you're filtering by are integers, aren't they?

I think the code should look like this:
SELECT vol FROM tblVolDelta13_18 WHERE [deltaId] = 50 and [loadTime] = 25200 and [expiryId] = 2 and [loadDate] = 40623

Open in new window


Plus try adding indexes where possible.
0
 
LVL 12

Expert Comment

by:Mohamed Abowarda
ID: 35185747
Check the database columns data type, probably you are using varchar instead of int, you should also update the query and remove the quotations to query about integers.
0
 
LVL 8

Expert Comment

by:PagodNaUtak
ID: 35186953
Or you can use paging for this scenario.

Have a look here:

http://forums.devx.com/showthread.php?t=155210
0

Featured Post

Get 15 Days FREE Full-Featured Trial

Benefit from a mission critical IT monitoring with Monitis Premium or get it FREE for your entry level monitoring needs.
-Over 200,000 users
-More than 300,000 websites monitored
-Used in 197 countries
-Recommended by 98% of users

Question has a verified solution.

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

by Mark Wills Attending one of Rob Farley's seminars the other day, I heard the phrase "The Accidental DBA" and fell in love with it. It got me thinking about the plight of the newcomer to SQL Server...  So if you are the accidental DBA, or, simp…
In this article we will get to know that how can we recover deleted data if it happens accidently. We really can recover deleted rows if we know the time when data is deleted by using the transaction log.
There's a multitude of different network monitoring solutions out there, and you're probably wondering what makes NetCrunch so special. It's completely agentless, but does let you create an agent, if you desire. It offers powerful scalability …
In this brief tutorial Pawel from AdRem Software explains how you can quickly find out which services are running on your network, or what are the IP addresses of servers responsible for each service. Software used is freeware NetCrunch Tools (https…

634 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