Solved

search an sql database

Posted on 2012-03-19
3
243 Views
Last Modified: 2012-03-19
Table 'people'
columns 'username','customfield','customvalue'
Table 'custom-fields'
columns 'fieldID','fieldName'

Data in 'people' table
joe, 2,small
joe,3,black
joe,4,deaf
pat,2,small
pat,3,brown
pat,4,blind
lisa,2,big
lisa,4,blind
alex,2,medium
alex,3,white
alex,4,deaf

Data in 'customfields' table
1,gender
2,size
3,color
4,handicap

I want to get a subset that finds all people who have the handicap of being 'blind' and returns all data about them

ie
pat,2,small
pat,3,brown
pat,4,blind
lisa,2,big
lisa,4,blind

select * from people p left join customfields on p.customfield = c.fieldID where c.fieldID=4 and p.customvalue="blind"

This finds
pat,4,blind
lisa,4,blind

how do I get the more complete list
0
Comment
Question by:joomla
[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
3 Comments
 
LVL 24

Accepted Solution

by:
johanntagle earned 250 total points
ID: 37736639
Try:

select pp.* from people join people p on pp.username=p.username left join customfields on p.customfield = c.fieldID where c.fieldID=4 and p.customvalue="blind"
0
 
LVL 20

Expert Comment

by:BuggyCoder
ID: 37736660
select * from people a inner join customfields b on a.customfield=b.fieldid where b.fieldid=4 and p.customvalue='blind'

Open in new window

0
 

Author Closing Comment

by:joomla
ID: 37736699
thank you
0

Featured Post

[Webinar] Learn How Hackers Steal Your Credentials

Do You Know How Hackers Steal Your Credentials? Join us and Skyport Systems to learn how hackers steal your credentials and why Active Directory must be secure to stop them. Thursday, July 13, 2017 10:00 A.M. PDT

Question has a verified solution.

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

Load balancing is the method of dividing the total amount of work performed by one computer between two or more computers. Its aim is to get more work done in the same amount of time, ensuring that all the users get served faster.
In this blog post, we’ll look at how ClickHouse performs in a general analytical workload using the star schema benchmark test.
Monitoring a network: why having a policy is the best policy? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the enormous benefits of having a policy-based approach when monitoring medium and large networks. Software utilized in this v…
This is my first video review of Microsoft Bookings, I will be doing a part two with a bit more information, but wanted to get this out to you folks.

690 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