Compare Previous Row's Data To Current Row's Data

Oct 28, 2007

I have a task that will require me to subtract the current time from the previous time as long as the records fall within the same Extract Count. For example:
I have 8 transactions associated with ExtractCount #2 and 8 start/end & processing times. I need to subtract each row's time from the previous row's time. I have a conceptual idea of how to do it but need real help to figure out how to do this using a query.

Thanks,
Phoenix81

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Compare Current To Previous Record In Query

Aug 14, 2007

I have a table of customers who report trouble on their equipment. I would like to compare the date in the current record to the previous record to see if it occurred within 30 days. Can I do this with an SQL query or expression?

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Queries :: Comparing Data From Current To Previous Years

Oct 9, 2013

I have a table which is used to record electric billing period dates, total kWh and costs for a list of locations each month. I would like to compare the quarter total kWh and costs for this year "2013" against same quarter last year "2012". I have created two queries, the 1st is capturing data from 2013 and the 2nd is capturing data from 2012. I created a 3rd query which joins the 1st and 2nd together by month where fields match. Both tables have the same fields, however there is more records in 2012 than 2013. How can I join the tables together so months that have no data are left blank?

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Compare Same Data - Delete

Aug 15, 2006

Hi guys,

I have 23k records

I have run the wizard to find all the duplicates according to one field.

So i have the results, except that some of the records contain nothing within the searchable field - so it returns all the records with nothing in the searchable field as duplicates.

How would i modify the query to perform the search but exclude the records with no data.

The SQL query below is the default wizard output for find duplicates, how would i change this??

SELECT Master.EMAIL, Master.MemID, Master.MEMBERNO, Master.FIRSTNAME, Master.LASTNAME, Master.POSITION, Master.ORGAN, Master.ADDRESS1, Master.ADDRESS2, Master.ADDRESS3, Master.ADDRESS4, Master.COUNTY, Master.COUNTRY, Master.POSTCODE, Master.SALUTATION, Master.MOBILE, Master.TELEPHONE, Master.WORKPHONE, Master.FAX, Master.RATE, Master.CLASS, Master.ADDREF, Master.DATEJOIN, Master.WEB, Master.Field26
FROM Master
WHERE (((Master.EMAIL) In (SELECT [EMAIL] FROM [Master] As Tmp GROUP BY [EMAIL] HAVING Count(*)>1 )))
ORDER BY Master.EMAIL;

Another thing is, once i have the result... which query would i use to actually delete the duplicate data??

Cheers, and advance thanks!! :cool:

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Compare Text To Table Data?

Dec 17, 2004

I'm willing to be this is simple, but I haven't been able to figure it out.

I have created a database with one table, tblUserData. I have one form called frmLogin.

tblUserData has two fields, Username, and Password.
frmLogin has two textboxes for user input, User and Pass, and has one control, cmdLogin.

What I am trying to do is - When a user types their username and password, and clicks on the control
button, the value of User.Value is compared to the Username field of the UserData table.
If a matching record is found, then Pass.value is compared to the Password field from the matching record.
If they match then the program proceeds.

Can anyone point me in the right direction please?

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Modules & VBA :: Compare The Last Two Data-points With 1?

Jul 19, 2014

one more thread of mine today

I have this table:

-> tblTest

Code:

test_id | test_Name | test_Date | test_value
------------------------------------
1 | Company A | 01.01.2010 | 0,90
2 | Company A | 02.01.2010 | 0,95
3 | Company A | 03.01.2010 | 1,10
4 | Company A | 05.01.2010 | 1,05
5 | Company B | 01.01.2010 | 0,9
6 | Company B | 02.01.2010 | 1,20
7 | Company B | 03.01.2010 | 1,15
8 | Company B | 05.01.2010 | 0,95
9 | Company B | 07.01.2010 | 0,80

The important level is 1,00

Now I will, for each company, check:

- Is the value of ID-1 >1 AND the value of the ID-2 <1, THAN give me a 1
- Is the value of ID-1 <1 AND the value of the ID-2 >1, THAN give me a -1

In this example the result should look like this:

Code:
test_id | test_Name | test_Date | test_value | test_Code_result
-------------------------------------------------------------
1 | Company A | 01.01.2010 | 0,90 |
2 | Company A | 02.01.2010 | 0,95 |
3 | Company A | 03.01.2010 | 1,10 |
4 | Company A | 05.01.2010 | 1,05 | 1
5 | Company B | 01.01.2010 | 0,90 |
6 | Company B | 02.01.2010 | 1,20 |
7 | Company B | 03.01.2010 | 1,15 | 1
8 | Company B | 05.01.2010 | 0,95 |
9 | Company B | 07.01.2010 | 0,80 | -1

Probably I have to carry out this in vba.but i dont know how I can calculate across the datapoints (rows).

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How To Compare Data Type And Properties In 2 Tables

Mar 20, 2005

I would like to compare 2 tables by looking only at the names of the fields, data types and their properties (e.g. required yes/no). I am searching for a method to export this information to another table and then make comparison. Maybe sth. similar to �documenter� or another tool. Some ideas would very much appreciated. Thanks Bartek.

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Compare Data In Two Tables, With Multiple Conditions�..

Aug 25, 2005

Been trying to crack this one for a while hoping someone on here might be able to help me. ;)

I have a table with a list of required software and a table with a list of computers and the software installed software. I made a query that displays the machines with the required installed. My problem is if a machine has more than required then it does not display the record. If it needs Office, Photoshop but has office, Photoshop and quark installed then it does not display that machine.

This should be quite a simple thing, I have played with Like, NOT, Where and others but with no luck...

Any help would be greatly appreciated.

Graeme

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Queries :: Compare Data Stored Within Same Table

Jun 13, 2013

I am running into an issue when trying to compare data stored within the same table.

tblParcels - holds data relating to an individual parcel of land; unique identifier is ParcelID. No repeating data.

tblValues - holds data relating to the value(s) of each parcel; new values entered annually; unique identifier is TaxID; has field to link to tblParcels. One parcel can have multiple entries for each year tracked.

I have two unbound text boxes on frmMainForm where users can enter Tax Years to compare (txtYear1 and txtYear2). Theory being that users will be able to select any two tax years and compare the parcel values.The report (rptMaster) is built using three queries and is used to show the change in value between txtYear1 and txtYear2:

qryYear1 - pulls all values from tblValues where the TaxYear equals the year typed in txtYear1.

qryYear2 - pulls all values from tblValues where the TaxYear equals the year typed in txtYear2.

qryCompare - joins the results from qryYear1 and qryYear2, along with other common fields, and populates rptMaster.

My problem lies when a parcel does not have any values for one or both of the years entered into the text boxes. I completely understand why, qryCompare can't show any records if there are no results coming from either qryYear1 or qryYear2. What I am not getting is how to work around this issue.I would like for the report to show "$0.00" for the value if there is not a value for that Parcel in tblValues for the year entered.

tblValues example data:
TaxID ParcelID TaxYear Value
1 5 2011 100,000
2 5 2012 200,000
3 6 2012 75,000

In the example above, when comparing 2012 values to 2011 values, my report shows the values for ParcelID 5 but not for ParcelID 6 as it does not have a 2011 value (and won't since information about that parcel didn't exist in 2011).

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Compare Data In Different Tables And List Non Matching Values

Nov 2, 2007

Hi

I am trying to compare data in two different tables and list the data that does not match. Not sure if this is possible. Details below

Table 1

xyz - A1 - Do not use
ABC - A4 - Use

Table 2

123 - A1

The result of the query should show me

A4 (as this does not appear in table 2

I am not too familiar with Null values as there will be many null values that i want to ignore.

Any help will be appreciated.

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General :: Compare Data In A Column And Update If Required

Feb 28, 2013

I have a table "Customer Plans" with 100s of rows of data with 3 columns

'Name', 'Company', 'Plan Type'

I want to create a new column or table "Customer Details" with the the column name 'Customer' under the following criteria:

If the data in 'Customer Plans.Company' Column meets a certain criteria as in = "Corp&Gov" or "Head Office" or is "blank", I want it to populate the new column/table "Customer Details.Company" with the corresponding data in the 'Customer Plans.Name' column

e.g.
if
Name = Anna B
Company = Corp&Gov
then
Customer = Anna B

I want to populate 'Customer' with Anna B for that record and so on down the list of data in 'Company' column.

If however the 'Company' column doesn't meet the criteria, I want to populate the new column/table 'Customer' with the current data in 'Company'

if
Name = Anna B
Company = Dealer
then
Customer = Dealer

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Queries :: Compare Data In 3 Fields In 1 Table / Group By Largest

Dec 4, 2013

I'm trying to create a query that will compare the data in 3 fields in a record, choose the largest (I also have a criteria to order by if more than 1 field has the same entry and it's the largest of the 3), and then group by that.The fields I will need are as follows:

PRODUCT table:
ProductName
Chemical
ChemicalAbstract
PhysicalState
NFPAHealth
NFPAFlammability
NFPAReactivity

qryQuantityOnHand query (which doesn't link directly to the PRODUCT table, it links through associations with other tables):QOH...I will eventually need information from another table for the final reports, but I don't think it has to be included in this query.

The fields NFPAHealth, NFPAFlammability, and NFPAReactivity each may be 0, 1, 2, 3, or 4...I need to ignore blanks; if 1 of the above fields is blank, they will all be blank.For any record, I need to compare the number in those 3 fields to each other, and choose the largest number and group by that rating.

In other words, if the largest of the 3 numbers is a 3 in the NFPAFlammability field, all those products need to be grouped together.If the same number appears in at least 2 of the fields, the order that determines the grouping is: Flammability, then Health, then Reactivity..Ultimately the report will be grouped as follows:

Flammability
Rating 4
Product 1
Product 2
Product 3

Rating 3
Product 1
Product 2
Product 3

Rating 2
Product 1
Product 2
Product 3

Health
Rating 4
Product 1
Product 2
Product 3

[code]....

and each of the groups will be sub-totalled.I'm stumped at trying to create the query in the first place.The added aggravation here is that we are dealing with 23 stores, each with their own mix of products. I have another table that contains the information about which products are in which store.

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Modules & VBA :: Compare Database - Method Or Data Member Not Found

Mar 12, 2014

Compile error: Method or data member not found

Code:
Option Compare Database
Option Explicit
Dim intItems As Integer
Dim strName() As String, datBirthDate() As Date, intAge() As Integer

Private Sub Form_Load()
intItems = Val(InputBox("How many names do you have?", "Name List"))

[Code] .....

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Keep Previous Data

Mar 20, 2006

Hi Guys,

I'm pretty new in the access world and I'm trying to build my first Database! I've a question (I bet really simple): I'd like to know how it is possible to keep previous data that I've entered in a form when I open it a second time.
Thanks a lot for you help

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Modules & VBA :: Copy Data From Excel Sheet To Access Table And Then Compare Two Tables

Dec 2, 2014

I have a form where when the user clicks on the browse button then excel workbook filepath gets stored in the textbox as below:

Code:
Private Sub CommandButton1_Click()
ChooseFile
End Sub
Sub ChooseFile()
Dim fd As FileDialog
Set fd = Application.FileDialog(msoFileDialogFilePicker)

[Code] .....

Please see attached the excel workbook. Everytime the user will select Excel workbook using Browse button. Now in that file , the first sheetname will always be "Summary". I want to perform the following steps:

1. So now I want VBA code to copy the data from columns "Withdrawn","Obsolete","Updated","LitRef" from Summary sheet to the Access table named tblSummary.

2. When the data gets copied in Access table then write So VBA code that will check if the data in field LitRef in table "tblSummary" is present in field "Reference" of Access table "tblliterature" . if its present then check in the tblSummary , which corresponding fields out of "Withdrawn","Obsolete" and "Updated" stores "Y" .
3. If "Withdrawn" field value is "Y" then change the status of corresponding record of tblliteraure to "Withdrawn"
4. If "Obsolete" field value is "Y" then change the status of corresponding record of tblliteraure to "Obsolete"
5. If "Updated" field value is "Y" then change the status of corresponding record of tblliteraure to "Updated" .

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Removing Previous Data

Nov 5, 2006

can someone help:

in a form I've created showing products bought, when I add a new new order it still keeps the previous order's data, how can I prevent that from happening?

cheers

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Using Data From Previous Record

Apr 2, 2005

I'm a novice with Access but I thought I would use Access rather than Excel to record fuel use for our vehicles because the reporting functions should be more powerful.

I have set up a table where I input date, vehicle, member of staff, mileage of the vehicle and the cumulative reading from the fuel tank meter. I thought it should be simple enough to calculate the fuel used each fill by taking the meter reading away from the reading on the previous record, but I cannot find a way of getting Access to do this.

I am missing something obvious or not?

Thanks,

Henry

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Get Data From The Previous Form

Feb 3, 2006

Hi guys,
I have created 2 forms, where the first form is where people(who are using it) have to enter their ID#(3-digit). Then I want to connect the 2 forms together, by having a button on the 1st form that will open the 2nd form. Then I want one of my field on the table associated with the 2nd form to be automatically populated everytime there is a new entry(with that ID# on the first forms).
I have been unsuccessful during this time. So everyone who use that 2 forms has to manually enter their ID# everytime they want to create new entry.

I put this on the Text Box(where I want the ID# to be automatically populated), on the Default Value : "=[Forms]![f3_sel_exp_id]![sel_exp_id]"
But the result is: "#name?"

Something wrong with coding?? I ran out of idea.

Thank you guys..

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Data From Previous Record

Dec 17, 2006

I have still not solved the problem wich is doing my head in!!!
In the following DB I have the "frm1" wich the value of the first record for "Value1" is 10 when I pass to the second record Iwould like to show automatically the value 10 in the field "Value1" this for all the records untill I change toa new value so from then on it will show the new value.
I believe is the Dlookup function, but I have not find the way to make it work.
I must be thick but I need your help!!!!!
Thanks

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Copy Some Data From Previous Record To Next

Apr 12, 2006

Hi
I need to copy some data from last record to next(New record), when a user clicks a button on a form. I don't want to copy all the data.

An example would be booking in items from an invoice:
Company would be the same
Invoice number would be the same
Product code would be different
quantity would be different

Hope this makes some sence, and i'm not being stupid:rolleyes:

Andy

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Query To Look For Previous Months Data

Jun 1, 2005

Hey Guys,

I've been racking my brains on this one and need your help. I was asked this question by a friend who has just set up a database for a non-profit organisation in the UK. I have attached an simple example database to illustrate the problem.

There is a table called "tblMembers" which contains data on members of clubs and the dates their membership expires.

There is a query called "qryExpiryCrossCheck" and it needs to display people whose membership has expired in the previous month (i.e. May 2005).

Sounds easy? Well the query needs to know that 'now' is June 2005 and that the previous month is May 2005 and then as I said display people whose membership has expired in the previous month.

Any ideas/solutions would be greatly appreciated. As I said this is a favour for a friend who is carrying out some free work for a non-profit organisation.

Cheers,

Rusty
:D

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Copying Previous Data (cloning)

Jun 15, 2006

Hi,

i need help regarding copying previous data in a table (as a cloning method).
i have a form with continous records. near each record, a button was created that opens in another form which contains various fields.

in order to facilitate time, i created a button on the second form to be able to copy previous data for the respective records on the first form.

but the problem happens if there are 3 fields all of them have to be filled in to be able to perform the copy operation.

for example:

port = rs!port
vessel1= rs!vessel1
vessel2 = rs!vessel2
rs.movenext
rs.edit

all fields must be filled that is port, vessel1, vessel2...and if only port and vessel1 field is filled, this cannot be copied for the other records.

can anyone give me suggestions about how can i make it in a way that it copies data irrelevant of what fields have been entered.

any help will be much appreciated.

thanks a lot.

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Holding Previous Record Data In New Form?

Aug 21, 2006

Hi there! New to Access and this forum.

I am creating a form to update a table of records. The table represents purchase order assignments and I need the next sequential purchase order number (as per the order number from the previous record) to be displayed in the new record (order field) on the form.

Table: Orders
Field: OrderNumber

Form: Manual Orders
Data Entry Field: OrderNumber

Form was created using wizard.

Anyone able to help?

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Text Box Data Contingent Upon Previous Combo Box

Mar 28, 2006

I have a combo box where I select a Hardware store. I want the address for the store to come up if a hardware store is selected. If one is not selected I want to be able to enter an address.

I have a vendor (hardware store) table, which contains the Hardware store and it's address. I can get the combo box to show the store selections but I can't get the address to come up after I select the store.

Is there a way to link text boxs to a combo box??

Thanks, Joe

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Holding Previous Record Data In Form...

Aug 21, 2006

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Reports :: Report Showing Data From Previous Run?

Feb 9, 2015

I have a REPORT containing 7 ('columnar') subreports. Each subreport is to show showing a days worth of medical doses.... to visually represent a wall planner.

When the report loads - user enters a week value # via Inputbox(). This value is written to a TEMP table. Each subreport accesses this same TEMP table to retrieve the week # value. In the Recordsource for each subreport I have the following code :

SELECT * FROM GETPATIENTREADINGS_WEEK WHERE (((Format([DateR],'ww'))=DLookup("WeekVal","[TEMPTABLE]")) AND ((GETPATIENTREADINGS_WEEK.DayVal)=1));

... where the DayVal goes from 1...7 corresponding to the columnar position of each subreport on the display ie. for each day of the week.

The problem I am having is that when the report runs - I see the display showing the data from when the report was previously run. ie. I have to run the report twice to see the data for the correct week value entered. All the SQL works as expected when I run from Query view but when I run through VBA..

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