Solved

Not Equal in where clause eliminating Nulls

Posted on 2009-05-08
6
194 Views
Last Modified: 2012-05-06
Hello,

I have this query with a condition in where clause ActivityStatusId <> 100
but in the resultset it is eliminating nulls too.

How do I get around this one.

Thanks
0
Comment
Question by:rowmark
[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
6 Comments
 
LVL 143

Expert Comment

by:Guy Hengel [angelIII / a3]
ID: 24340703
NULL must be handled :
where ( ActivityStatusId <> 100 OR ActivityStatusId IS NULL )

Open in new window

0
 
LVL 60

Expert Comment

by:Kevin Cross
ID: 24340707
Try this:
SELECT *
FROM your_table_name
WHERE ISNULL(ActivityStatusId, 0) <> 100

Open in new window

0
 
LVL 3

Accepted Solution

by:
xbrady earned 500 total points
ID: 24340708
You can use something like this:
(ActivityStatusId IS NULL OR ActivityStatusId <> 100)
0
Salesforce Has Never Been Easier

Improve and reinforce salesforce training & adoption using WalkMe's digital adoption platform. Start saving on costly employee training by creating fast intuitive Walk-Thrus for Salesforce. Claim your Free Account Now

 
LVL 75

Expert Comment

by:Aneesh Retnakaran
ID: 24340711
where ActivityStatusId <> 100 or ActivityStatusId IS NULL
0
 

Expert Comment

by:idlir
ID: 24341301
That is because a null value is undetermined, therefore it cannot be verified whether it's different from 100

If your condition is eliminating the null values, use the following

where coalesce(ActivityStatusId ,0) <> 100


This will return all the rows that have an ActivityStatusId with a predetermined value, and all those that are null (coalesce replaces null with 0 and 0 is always different from 100 )
0
 
LVL 143

Expert Comment

by:Guy Hengel [angelIII / a3]
ID: 24342915
rowmark,

  glad you got your solution.
  note though that for fairness, if people post the same or alternative good solutions at the same time, you should really do a split instead of accept one of them!

angel eyes, zone advisor
0

Featured Post

Simplifying Server Workload Migrations

This use case outlines the migration challenges that organizations face and how the Acronis AnyData Engine supports physical-to-physical (P2P), physical-to-virtual (P2V), virtual to physical (V2P), and cross-virtual (V2V) migration scenarios to address these challenges.

Question has a verified solution.

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

JSON is being used more and more, besides XML, and you surely wanted to parse the data out into SQL instead of doing it in some Javascript. The below function in SQL Server can do the job for you, returning a quick table with the parsed data.
A Stored Procedure in Microsoft SQL Server is a powerful feature that it can be used to execute the Data Manipulation Language (DML) or Data Definition Language (DDL). Depending on business requirements, a single Stored Procedure can return differe…
Using examples as well as descriptions, and references to Books Online, show the documentation available for date manipulation functions and by using a select few of these functions, show how date based data can be manipulated with these functions.
This videos aims to give the viewer a basic demonstration of how a user can query current session information by using the SYS_CONTEXT function

751 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