Solved

trouble getting all rows on left of sql statement

Posted on 2013-01-17
5
262 Views
Last Modified: 2013-01-17
I have this sql statement.  I need to show all the rows from units, and attach the lease table for that unit.  If there is not a lease for the unit I should get nulls.  No matter how I slice I only get records that exist together in both tables.  How can I get all the units?

Here is script

SELECT     a.PropertyId, a.BldgId, a.UnitId, a.UnitType, a.UnitSubType, a.OccuStatus, b.ResiLastName, b.ResiStatus
FROM         Unit AS a LEFT OUTER JOIN
                      Lease AS b ON a.PropertyId = b.PropertyId AND a.BldgId = b.BldgId AND a.UnitId = b.UnitId
WHERE     (a.PropertyId IN
                          (SELECT     code
                            FROM          locationList
                            WHERE      (a.UnitType <> 'GA') AND (LocationID = '6') AND (a.UnitStatus = 'N'))) AND (b.ResiStatus <> 'X') AND (b.ResiStatus <> 'P')
ORDER BY a.PropertyId, a.UnitId
0
Comment
Question by:mgmhicks
[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
  • 2
  • 2
5 Comments
 
LVL 43

Expert Comment

by:zephyr_hex (Megan)
ID: 38787620
it may be in the where part of your clause.  you may need to allow for null values in the Lease table.

one way to test is to run your query without the where clause.  do you get your left outer join as expected?
0
 

Author Comment

by:mgmhicks
ID: 38787633
Yes, but now I have multiple records for the unit.   I need a single list of the units and the leases name if there is a current lease to the unit, and a null if there is not.
0
 
LVL 70

Accepted Solution

by:
Éric Moreau earned 500 total points
ID: 38787689
remove the conditions concerning your lefted join table from the WHERE clause.

your query should read:
SELECT     a.PropertyId, a.BldgId, a.UnitId, a.UnitType, a.UnitSubType, a.OccuStatus, b.ResiLastName, b.ResiStatus
FROM         Unit AS a
LEFT JOIN Lease AS b
ON a.PropertyId = b.PropertyId
AND a.BldgId = b.BldgId
AND a.UnitId = b.UnitId
AND (b.ResiStatus <> 'X')
AND (b.ResiStatus <> 'P')
WHERE     (a.PropertyId IN
                          (SELECT     code
                            FROM          locationList
                            WHERE      (a.UnitType <> 'GA') AND (LocationID = '6') AND (a.UnitStatus = 'N')))
ORDER BY a.PropertyId, a.UnitId
0
 
LVL 43

Expert Comment

by:zephyr_hex (Megan)
ID: 38787727
if you need a single list, you could do a SELECT DISTINCT
0
 

Author Closing Comment

by:mgmhicks
ID: 38787748
thank you that did it.
0

Featured Post

How our DevOps Teams Maximize Uptime

Our Dev teams are like yours. They’re continually cranking out code for new features/bugs fixes, testing, deploying, responding to production monitoring events and more. It’s complex. So, we thought you’d like to see what’s working for us. Read the use case whitepaper.

Question has a verified solution.

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

Suggested Solutions

If you have heard of RFC822 date formats, they can be quite a challenge in SQL Server. RFC822 is an Internet standard format for email message headers, including all dates within those headers. The RFC822 protocols are available in detail at:   ht…
Use this article to create a batch file to backup a Microsoft SQL Server database to a Windows folder.  The folder can be on the local hard drive or on a network share.  This batch file will query the SQL server to get the current date & time and wi…
Nobody understands Phishing better than an anti-spam company. That’s why we are providing Phishing Awareness Training to our customers. According to a report by Verizon, only 3% of targeted users report malicious emails to management. With compan…
The Email Laundry PDF encryption service allows companies to send confidential encrypted  emails to anybody. The PDF document can also contain attachments that are embedded in the encrypted PDF. The password is randomly generated by The Email Laundr…

726 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