Dlookup To Find The A Number =>

Feb 9, 2007

Hello,

I have had a search through the forums but cannot find anything that is relevant to my issue. Hope someone can help.

I have a table with scores and then grades

tbl_scoregrade

Score,Grade
-999,10
133,9
239,8
342,7
449,6
570,5
709,4
785,3
862,2
917,1

I want to reference a field called "score_result" and generate a grade from my grade table and place it in a field called "grade".

In excel I use the following formula, but it does not work in access.

=IF(ISBLANK(C51),0,VLOOKUP(C51,Scorecard!H7:I13,2, 1))

Is there a way of doing this in Access?

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Find The Lowest Number And Place The Number And Column Name Into In Field

Dec 15, 2005

I have a access table with 32 columns and 42,000 rows of numbers. I need to find the MIN number in the row and if the MIN number has duplicates then I need them all placed into another column by column name.
Example:
Starting file
DEST,ORIGIN1,ORIGIN2,ORIGIN3,ORIGIN4, ETC
05512,3,2,4,2

ENDING table needed
DEST,ORIGIN1,ORIGIN2,ORIGIN3,ORIGIN4, NEWCOLUMNname
05512,3,2,4,2,2 ORIGIN2 ORIGIN4

Where the new column name contains the MIN number in the row and all of the associated duplicates column names.

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Jan 26, 2014

I have been working on a query in my database and I would like to look up a Number Value from another table based on a Number ID field and the Number Date in the Number Values table, where the Number ID field in the table agrees to the Number ID Index field in the query, and the Number Date field in the table agrees with the Initial Date field in the query. The Dlookup syntax I currently have is as follows:

DLookUp("[Number Value]","Number Values","[Number ID]=" & [Number ID Index] & "And [Number Date]= [Initial Date]")

The Dlookup shown above does not return an error, but it returns a blank field. I know that individually, the Dlookup for the Number ID works, but when I add the And for the Number Date the Dlookup returns a blank. Also, I have verified that there are existing records where the Number Date and Initial Date fields agree.

Also, I changed the format of the date fields in the tables to be ShortDate, thinking that the Timestamp was causing the Dlookup to not find a match. I also tried to use the DateValue() function within a query to reformat with not luck.

Why my Dlookup is returning a blank?

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Jun 8, 2015

Part of my access application does invoicing. I have an invoice number table that wholes one field "InvoiceNum". On my invoice report i have the following code:

Code:
Private Sub Report_Open(Cancel As Integer)
'// lookup invoice number when invoice opens
intInvoiceNum = Nz(DLookup("InvoiceNum", "tblInvoiceNum"), 0)
End Sub

[Code] .....

Problem: My report open with groupby ClientID and ProjectNum. Multiple invoices print on the same report. If any invoice spills over to second page the Format Code runs again inserting an incremental invoice number to the second page. How can i prevent this from happening?

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Jul 1, 2013

Access 2010

I am trying to check for when a user trys to enter a duplicate number.

The control that I am checking is in a subform on the main form:

Main: frmCandidateInfo
Sub: frmTestInfo

Control on the subform is: RankOrder

I am trying to check the control entry against the table entry:

Table: tblTestEvents
Field: RankOrder

Here is what I have:

Code:
Private Sub RankOrder_BeforeUpdate(Cancel As Integer)
Dim lngRankDup As Long
lngRankDup = Nz(DLookup("[RankOrder]", "tblTestEvents", "[RankOrder]=" & Forms!frmCandidateInfo!sfTestInfo!Form!RankOrder, 0))
If lngRankDup <> 0 Then
MsgBox TestEventID & " already exists in the database"
End If
End Sub

I know that the error is due to the argument not being correct, but I am not sure how to fix it.

I have tried:

Code:
lngRankDup = Nz(DLookup("[RankOrder]", "tblTestEvents", "[RankOrder]=" & Me.RankOrder, 0))

Code:
lngRankDup = Nz(DLookup("[RankOrder]", "tblTestEvents", "[RankOrder]=" & [RankOrder], 0))

Code:
lngRankDup = Nz(DLookup("[RankOrder]", "tblTestEvents", "[RankOrder]=" & Forms!sfTestInfo!Form!RankOrder, 0))

But nothing seems to work.

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Oct 8, 2013

Occasionally a user of mine needs to reset a sequence number in a table.

A few months ago I made him a simple app that has two text entry boxes and a button. The first text entry box uses a dlookup:

Code:
=DLookUp("sSessionNumID","qryGetAPIsessionLastValue")

...the other textbox ties to an update query, which updates the sequence number with the new value supplied by the user. Simple.

Then about a week ago it stopped running the dlookup part - nothing shows in the text box that is to show the current sequence num.

Oddly, if I enter a value in the update text box and press the button to update the sequence number (which still works) -- the previously dormant dlookup textbox now shows the new value - so it works ...it just doesn't want to work on this one workstation unless the update query is run first.

What can this be? The update button merely calls a DoCmd.RunSQL with both an insert (storing old value locally in ms access table) and an update (updating the sql server table's seq number using an ODBC DSN and sql server driver).

It's almost like the dlookup falls asleep now and won't wake up until the update is run...

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Dec 4, 2013

I am trying to make a DLookup function to return the ID number of an entry that matches 2 or 3 criteria but I am struggling to get the syntax correct for the second and third criteria.

Here is what I have so far:

1 criteria, works fine =DLookUp("[timedata]![id]","timedata", "[processdone] =" & Forms![Mainform]![p11] )

2 criteria, works fine =DLookUp("[timedata]![id]","timedata", "[processdone] = " & Forms![Mainform]![p11] & " And [timedata]![BGSnum] = 1001" )

BGSnum is a numerical value but it changes for each form I load, so what I want to do is use the form location value as the criteria.

E.g.

=DLookUp("[timedata]![id]","timedata", "[processdone] = " & Forms![Mainform]![p11] & " AND [BGSnum] = ' " & Forms![Mainform]![BGS] & "' ')

and possibly a third criteria too. This is where I am having problems and the syntax is wrong so MS Access wont let me save the macro.

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Nov 20, 2014

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May 29, 2015

DLookup function. (this is for a stamp collection database).

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I want to query a table called "CatNameList" to get the "StampName" of the item (based on the entries of Catalog and Country) and populate that name in the text box. The fields in this table are called "StampName", "CatNumb" & "CName" respectively.

I have successfully placed the following expression in the control source of that textbox and able to populate the StampName I need based solely on the catalog number alone.

That express is :
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So it will populate the "StampName" data to match the "Catalog" number entry just fine.

However, I need to add a second layer to incorporate the Country.

Example : There is a catalog "1" for "USA", and a catalog "1" for "Canada" but both have different "StampName".

I have been attempting to get that second piece added with no success. Here is the expression I have been trying to get to work :

=DLookUp("StampName", "CatNameList", "[CatNumb] = " & [Catalog] & " And CName = '" & [Country] & "'")

Right now, the text box is just blank with the above expression. I thought it may be because there was no match found, but I have triple checked to ensure I have the spelling correct on the country name in both places.

Basically, I just need the dlookup to take the "catalog" and "country" off the form and match it to the "CatNameList" table fields of "CatNumb" and "CName" to give me "StampName" field back on the form.

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I would like to query a table CatNameList for a name (text) if the catalog # and country find a match on the table.
My field names on the CatNameList table are : Name, Number (to validate against the Catalog # entered on the form) and CName (to validate against the Country drop down on the form).

I am successfully able to populate the name from the CatNameList table on my form using lookup of the catalog # using this :

=DLookUp("Name","CatNameList","Number = Form![Catalog #]")

However, I will eventually have several catalog numbers that will be identical in the table CatNameList, thus why the country is important as the second criteria to be added into the dlookup.

I have tried for a few hours unsuccessfully to add the second portion to my dlookup.

This is what I have currently (not working) that I have been playing with, I'm sure I'm missing a quote mark, & or something simple.

=DLookUp("Name", "CatNameList", "Number = Form![Catalog #] And CName = ‘”& Form![Country] & ”’”)

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Code:
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[Code]....

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[Code] .....

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Hi,

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Each member has a three digit code, like XXX. Each program has the three digit code of the member + three numbers that are supposed to auto increment. That is, the first program of member X with the member code XXX is called XXX001.

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Dim strMax As String

strMax = DMax("programs_kod", "table_programs", "Left$(programs_kod, 3) = medlemskod")
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I'm trying to use DMax to get the maximum number for the particular member and after that adding 1 to that for the new program code.

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Code:

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