Refer To Previous Record In Current Record Query

Sep 15, 2005

In my query, i want to automatically display the value of another field from the previous record in a field in my current record. i.e.

Name Value Previous
Record 1 1
Record 2 2 1
Record 3 7 2
Record 4 1 7

Is it possible to create some kind of simple expression to refer to data in another record?

Cheers,
Ben

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Queries :: Refer To Previous Record In A Query

Mar 29, 2015

I'm trying to refer to previous record in a query and i'm stuck as i do not know how to do it.

Here is my query:

Code:
SELECT
[Prod2Buy].[Product Code],
IIF([Missing] IS NULL,0,[Prod2Buy].[Quantity To Order]-[To Order]) AS [Rest To Order],
s.s_manu_code AS [Manufacturer Code],
s.prod_cost AS [Price Code],

[Code] ....

In fact the line: IIF([Missing] IS NULL,0,[Prod2Buy].[Quantity To Order]-[To Order]) AS [Rest To Order] should refer to previous record.

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Aug 14, 2007

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Apr 30, 2007

I need a way to dynamically store a particular value in "field_2" of the CURRENT record depending on whether or not the value of "field_1" of the CURRENT record is identical to the value of "field_1" of the PREVIOUS record within the same table. The table is sorted on "field_1".

So, if the value of "field_1" in the CURRENT record is "ABC" and the value of "field_1" in the PREVIOUS record is also "ABC", then store a value of "PPP" in "field_2" of the current record. IF on the other hand, the value of "field_1" in the CURRENT record is "ABC" and the value of "field_1" in the PREVIOUS record is "XYZ", then store a value of "WWW" in "field_2" of the current record.

I have a report that will use these results to count only the number of records that have a "WWW" in "field_2".

Is this doable, maybe in a query somehow?

I should add that whatever the solution, it needs to be compatible with Access 2000.

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Queries :: Evaluating Current Record To Previous Record To Get Counts

Aug 8, 2014

I'm struggling with a query to evaluate current and prior record data. I have a query producing 5000 records. I need to group records by Case ID and compare current date record to previous date record to determine if a team and worker name has changed during the year. I need to count how many times a cases is transferred to and out of a particular team from the beggining of the year. i.e., On 1/1/2014-Team1 has an inventory of 500 cases.

During the month 25 cases are transferred into Team1 and 15 cases are transferred out of Team1. So on 2/1/2014 Team1 begins with an inventory of 510 cases. Throughout the year cases come and go from and to Team1 each month so need to figure out how to create a query to count each change. See attachment displaying how the data is listed and how I invision it to work with the In/out column counts.

Specifically, at the begginig of the year (1/1/14) for case ID 1003 you can see it belongs to Mary in Team1 for January and February. Then in March the case is transferred out and went to Joe in Team 3. So for Mary a "-1" is recorded as a negative count for that Case ID. If later in the year the case is transferred back to Mary a "+1" would be recorded. Respectively evaluated for each of the 5000 records to get a total count for each of the teams by Case ID throughout the year.

I've started with DLookup, tried comparing current month to previous month using DMax. It works as long as I only select one case ID used in a separate query but if I use the whole subset (5000 records) it fails. I can't figure out how to group each set of case IDs and then apply the query.

My attempted query: DLookUp("[Team]","[Team_qry]","[Team_qry]![Date]=#" & CStr(DMax("[Date]","[Team_qry]","[Team_qry]![Date] <#" & CStr([Date]) & "#")) & "#")

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Oct 10, 2013

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Feb 4, 2005

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The criteria is based on field [GroupNo] when it changes (increases) which are always listed in numerical order.

Basically all I want to is for the text box colour to alterante (eg blue & yellow)when GroupNo changes value

So it would look something like this....

Group NoID (highlight colour)

1 (yellow)
1 (yellow)
1 (yellow)
2 (blue)
2 (blue)
2 (blue)
3 (yellow)
3 (yellow)
etc etc

btw, although values will always be in order they may not all be output, so it's not just case of odd, even, odd, even (that would be too easy!)

I can retrieve the Previous Record's GroupNo value (via a function) in another text box and compare current GroupNoID with this in the Format Expressions and manage to change the colour, but it won't sustain this new colour for the subsequent same GroupNos, obviously as the values have changed.

So how can I....

Change the colour when the value changes.
Keep this new colour until it the value changes (increases) again.

Many Thanks

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Jul 30, 2013

I have a Main form that has button that loads a new Pop Up form for entering new data that will display in the Main form. When all the data is entered I click on a button that Saves the data and exits the form and then runs Re-query on the main form returning to the record that was current before the requery.

I have the following code:

Private Sub cmdSaveTradeAndExit_Click()
DoCmd.RunCommand acCmdSaveRecord 'Save the current record
DoCmd.Close 'Close the current form
Dim CrId As Integer
CrId = Forms!frmTransactionMainActivePopUp.CurrentRecord
Forms!frmTransactionMainActivePopUp.Requery
DoCmd.GoToRecord , Forms!frmTransactionMainActivePopUp, acGoTo, CrId
End Sub

But I am getting the following error:

Run-time error '2498':

An expression you entered is the wrong data type for one of the arguments

And the following is in yellow in the debug:

Code:
DoCmd.GoToRecord , Forms!frmTransactionMainActivePopUp, acGoTo, CrId

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Jun 5, 2013

I want subtrack a value on the current record from the previous record and display the result in text box in subform datasheet. This is done during data entry. The calculation works most of the time and randomly it returns the wrong value. I have the code in an after update event after I enter a number. Here is what my code looks like:

sysHopSpacing = Abs([sysHop1] - DLookup("[sysHop1]", "tblSystemConfiguration", "[sysBaseNumber]=Forms![frmTempestCoordination]![frmSubSystem]![sysBaseNumber] - 1 "))

This is how I generate the sysBaseNumber

sysBaseNumber = Nz(DMax("sysBaseNumber", "tblSystemConfiguration", "sysAccountID=" & Forms!frmTempestCoordination!accAccountID), 0) + 1

I am using DMax so I can keep the subform records with the parent form record.

My results are inconsistant:

This is what I want the subform to do when subtracking from the previous record

syshop1 sysHopSpacing
5
20 15
30 10

Instead I get a result that does not make sense like this:

sysHop1 sysHopSpacing
5
20 15
30 4

I cant trace it down.

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Apr 29, 2015

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Aug 26, 2013

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hello. can i refer to a single record in a detail section, and not all of them? for example if i use something like this (after update in field1):

if me.field1 = 0 then
me.field2.enabled = false

any single field1 equal to zero will disable ALL of the field2's. i would like this to work within each record independently.

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Jan 20, 2014

I have a form that is used to book a new event for a client who is already in the database.Within that form I have a subform that is based on a query which displays information from that client's previous event. I did this using a solution found in the following thread: URL...It is based on pulling the second to last record that is related to the current client. It works perfectly when booking a new event that has taken place on a previous date. However, if the previous event occured on that same date (but at a previous time), it doesn't register.

I would prefer a query that would pull the record previous to the current one, instead of pulling the second to last record out of all that client's events.it would also mean that if more events are booked, then a past event is opened in a form, the sub forms in that form will display the event just prior to the current record.

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Apr 11, 2013

I need to add two previous record fields together in a query. I have attached a picture to illustrate.

The "StudyYears" filed is the primary key of the table the data is being pulled from. The zero's are placeholders for the sum of the previous record's data.

RunningBalance is calculated as follows:

Code:
RunningBalance: IIf([a].[StudyYears]=[ReserveParameters]![StartingBalanceYear],CCur([ReserveParameters]![StartingBalance]),0)

Bal is calculated as follows:

Code:
Bal: [AnnualContribution]+[InterestIncome]+[Inflation_Adjusted_Expenditures]

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Is there a way to do this relatively fast, as well as keeping the query updateable?

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Feb 20, 2014

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Oct 5, 2014

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IDFECHA REGOVTTOTREG40
2309/15/2014 5.5 0 46.75
2319/16/2014 8 0 46.75
2329/17/2014 8 0 46.75
2349/18/2014 7.75 0 46.75
2979/19/2014 8 0 46.75
2359/19/2014 8 0 46.75
2339/20/2014 1.5 0 46.75

I want the result like this:

IDFECHA REG OVT TOTREG40
2309/15/2014 5.5 0 46.75
2319/16/2014 8 0 46.75
2329/17/2014 8 0 46.75
2349/18/2014 7.75 0 46.75
2979/19/2014 8 0 46.75
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2339/20/2014 0 1.5 46.75

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Jan 28, 2013

I would like to build a query that has a calculated field, involving value from a previous record. I have five columns, Year (sorted ascending), InvestmentRate, StartingBalance, AnnualContribution, and InterestIncome.

The first row, being the smallest year value, uses a previously defined elsewhere starting balance, annual contribution, and interest income. This is recognized via an Iif statement and establishing the first set of values which the second row should use to calculate.

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Option Compare Database
Option Explicit
Private Sub AttachPaymentDetails()
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[code]....

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I was just wondering if there was any way to refer to a calculated field in the same query.
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