Solved

ASP/ADO bug with SQLserver

Posted on 1998-08-13
4
205 Views
Last Modified: 2010-03-19
Im creating a recordset from ASP with the following query (the recorset type is forward only, no lock, textual command);

SELECT *  FROM core WHERE empvis != null AND eNews=1

eNews is a bit datatype and empvis is datetime (with nulls) . When I run it from ASP, it returns nothing, yet running from the SQL tool in Enterprise manager it returns lots (what I want). If I remove the eNews=1 bit then I do get data returned via ASP. Is this an ADO bug - any workarounds?

Matthew Allum
0
Comment
Question by:matthewallum
  • 2
4 Comments
 
LVL 2

Expert Comment

by:Wiz_of_Oz
ID: 1089546
what r the results of the qry
SELECT * FROM core
r they correct?
0
 

Author Comment

by:matthewallum
ID: 1089547
yep
0
 
LVL 4

Accepted Solution

by:
mitek earned 50 total points
ID: 1089548
Of course, it will return nothing. It's not a bug in ASP/ADO, but a bug in the query.
Instead of writing
SELECT *  FROM core WHERE empvis != null AND eNews=1 ,
try
SELECT *  FROM core WHERE empvis IS NOT null AND eNews=1

Your query is not supposed to return anything, because any comparison ( =, !=, >, <) to null will render FALSE value.
Thus, the whole expression is false and no rows are selected.
 
0
 

Author Comment

by:matthewallum
ID: 1089549
Thanks ! makes sense now and works ;)
0

Featured Post

NAS Cloud Backup Strategies

This article explains backup scenarios when using network storage. We review the so-called “3-2-1 strategy” and summarize the methods you can use to send NAS data to the cloud

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
SQL replication over high latency link 10 61
SSRS - Date Report Options 2 29
SQL Query 2 34
Dynamic SQL select query 4 38
Everyone has problem when going to load data into Data warehouse (EDW). They all need to confirm that data quality is good but they don't no how to proceed. Microsoft has provided new task within SSIS 2008 called "Data Profiler Task". It solve th…
For both online and offline retail, the cross-channel business is the most recent pattern in the B2C trade space.
Using examples as well as descriptions, and references to Books Online, show the documentation available for datatypes, explain the available data types and show how data can be passed into and out of variables.
Viewers will learn how the fundamental information of how to create a table.

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