?
Solved

criteria in dlookup

Posted on 2004-09-27
8
Medium Priority
?
1,029 Views
Last Modified: 2008-02-01
I am trying to do a dlookup in a query, using Access 2002.  In the criteria field I want to use a field from another query, but it won't accept it.  I know you can do this with a forms field...ie forms![formname]![field] but how would I do this with a query field XXXX![queryname]![field] but I can't figure out what goes at the first bang.

Thanks
0
Comment
Question by:ChrisTHall
[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
  • 2
  • 2
  • +1
8 Comments
 
LVL 16

Expert Comment

by:Nestorio
ID: 12165341
You can do for example:

dlookup("id","mytable","id = (select id from mytable where id=2)")
0
 
LVL 16

Expert Comment

by:Nestorio
ID: 12165558
Another way:

MyVar = CurrentDb.OpenRecordset("MyQuery").Fields("MyField")
MyResult = dlookup("MyLookupField","MyTable","MyKey = " & MyVar)
0
 
LVL 1

Assisted Solution

by:prbnc
prbnc earned 400 total points
ID: 12165607
There are at least two options - the one I use most is to put the compare in the field row with a boolean output(true/false) and then the criteria is just a true or false.
Example(with the query showing "above" and related to the source table/query):

IIf(dlookup("[myfield]","MyTable]",mycriteria)=[YourQuery]![field]),True,False)
and True in the criteria row

I have also created custom functions to do similar comparissions.

FYI - what you are trying to do should work if the query is "visible" to the active query (in the upper pane) - if you just put in this way [myQuery]![myfield]
-- this way it does not have to be related - but if it is not related to your data source then it just pulls the compares the first record of that field (which in most cases is not very valuable).

You can also create between and in statements to compare ranges or compare against a list
0
Ransomware: The New Cyber Threat & How to Stop It

This infographic explains ransomware, type of malware that blocks access to your files or your systems and holds them hostage until a ransom is paid. It also examines the different types of ransomware and explains what you can do to thwart this sinister online threat.  

 

Author Comment

by:ChrisTHall
ID: 12173681
the dlookup is in a query, so I do not think I can establish a variable unless I do it as a global correct?
here is the expression as it stands now
custtype: IIf(Not IsNull(DLookUp("[sales]","SalesType","[sales]=querys![Query2]![sales]")),"yes","no")

am I close?
0
 
LVL 41

Accepted Solution

by:
shanesuebsahakarn earned 600 total points
ID: 12173791
I think you're looking for something like this:

custtype: IIf([SalesType]=DLookup("[sales]","Query2"),"yes","no")

This is assuming that SalesType is a field in the query where you need the DLookup (i.e., the query in which the above expression appears, not Query2).
0
 

Author Comment

by:ChrisTHall
ID: 12173893
let me put alil more info on the table...my apologies things have been crazy here.

Query2 is a query that I call in this new query...it has a calculated field in it called sales.  Which I want to use to do a dlookup on the Salestype table and return the field sales from that.

could it be the problem is the 2 same field name in 2 different locations?
0
 
LVL 41

Expert Comment

by:shanesuebsahakarn
ID: 12174062
Please give some examples of data and the results you want to return. I don't really follow what fields are in which tables and queries, and what results you wish to return. A DLookUp returns ONE value from a table (the first one it finds that matches your criteria), even if there are multiple records in the target table/query.
0
 

Author Comment

by:ChrisTHall
ID: 12174470
I got it to work....thanks for the help
0

Featured Post

VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

Question has a verified solution.

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

Access custom database properties are useful for storing miscellaneous bits of information in a format that persists through database closing and reopening.  This article shows how to create and use them.
Microsoft Access is a place to store data within tables and represent this stored data using multiple database objects such as in form of macros, forms, reports, etc. After a MS Access database is created there is need to improve the performance and…
In Microsoft Access, learn different ways of passing a string value within a string argument. Also learn what a “Type Mis-match” error is about.
With Microsoft Access, learn how to start a database in different ways and produce different start-up actions allowing you to use a single database to perform multiple tasks. Specify a start-up form through options: Specify an Autoexec macro: Us…
Suggested Courses

765 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