Tables :: Auto-Calculate Field From Other Table Values
Aug 10, 2015
How to set up my tables as I'm just starting off with setting my database up.
I'm doing a simple database to track the purchase orders (PO) I am managing. Each PO has a PO Number and an Original Value. POs may have multiple amendments which would change the PO value. I would however like to keep the history of the PO original value and all different amendments.
So I created two tables:
tblPO:
ID
PO Number (Number)
PO Original Value (Currency)
PO Sum of Amendments (???????????)
PO Current Value (Calculated = PO Original - PO Sum of Amendments)
tblPOAmendments:
ID
PO (Lookup from tblPO)
PO Amended Value (Currency)
Amendment Date (Date/Time)
Amendment Desc (Text)
Now the two, million dollar questions are:
1.) Is this the right table structure to use.
2.) How do I go about calculating the Sum of Amendments field?
I have parts that go into and out of inventory. Each time a part is removed or returned, the user inputs the number into the computer. I was wondering how I could link the numbers so that as parts were removed or added, the total number in inventory and the total number on the floor automatically changed. Thanks so much.
I am creating a database to keep up with the expenses for my art business. I have a table for Vendors with a field (Mileage) for one-way mileage that I enter manually (EX: 11.8 miles). Then I have a calculated field that basically just multiplies the Mileage field times two to get total mileage to and from my house to vendor location. (Total Miles) {The reason I want to do this this way right now is because I didn't keep up with my mileage this year and I am having to look up the distance from my home to each location)
Then I have a "supplies" table where I show the date, the vendor, the item, cost, etc, and I want to add a Total Mileage field based on the calculated Total Miles field in the Vendors table that will automatically populate based on the vendor of each transaction. I just can't remember how to make this work and I know just enough SQL to be dangerous.
Within my table if Field 1 has an answer of Self (from drop down), then, I would like Fields 6-12 to auto populate; however, if Field 1 does not have an answer of Self, then leave Fields 6-12 blank.
I am not quite sure how to lay this out. I am using Access 2010.
I'm trying to set up a holiday register. In my holiday table i have the following fields HolidayID, PersonID, StartDate, EndDate. I would like to have a final field which auto-calculates the number of days taken between start and end date. I read somewhere this should be done in a query using the DateDiff expression but I can't seem to get this to work.
- Assets - Shifts - Machine Offline Date - Machine Offline Time - Machine Online Date - Machine Online Time
In the Asset Table I have recorded on each asset the number of shifts it operates for as well as starting / finishing time of those shift. e.g. 2 shift asset will start at 7:00AM finish at 11:00PM or 3 shifts asset will start at 7:00AM finish at 6:59AM
Now I have 82 assets in the factory and 20% of those machines run 3 shifts. Each shift is 8 hrs.
What I have already done is allocate shifts per asset e.g.
when I pick Asset (a) in the Asset combo box, in the shift box it will automatically generate 2 or 3 dependant on what I have set.
If an asset runs for 2 shifts, it would mean that, that asset is operational/running from 0700 - 2300 or 7:00am - 11:PM
also if an asset runs for 3 shifts it would mean that, that asset is operational/running from 0700 - 0700 or 7:00AM - 7:00AM
These are the scenarios that is entered through a "Form"
Scenario A: Machine (a) breaks down at 1700/5:00PM on the 10/7/15 and was back online at 12:30 on 11/7/15, This machine runs for 3 shifts which would mean in the "Breakdown Downtime" the result should be 19.5 hrs
Scenario B: Machine (b) breaks down at 1900/7:00PM on the 10/7/15 and was back online at 10:00AM on 12/7/15, this machine runs for 2 shifts which would mean in the "Breakdown Downtime" the result would be 23 hrs.
I would like to make this an automatic calculation, Is this possible?
Please note I am not after a "Query", I need this calculation in the main Database table named "Tbl_MaintenanceDATA".
I understand this is not the norm and many have suggested against this, however for the purpose of what I need, it needs to be in the main table with all the other data.
I have the following tables: Inquiry (This is the main table I want to populate through the use of a form) Programs
My question refers to two columns in the Inquiry Table Program Group
The program column is populated by a drop down menu that is linked from a programname column in the Programs table.
I I want is the Group column in the Inquiry table to autopopulate based on the selected programname (There is a group column associated in the Programs table) so the form field will be autopopulated.
What I have tried is autopopulating the form (form name is Inquiries) Field called Group by using =[Program].[Column](1) in the source code of the text box. This works well, but it then does not populate the main table.
I need to either - Learn how to populate the main table column called Group based on the form autopopulating or - Learn how to autopopulate the column Group in in the table so the form will autopopulate
i have a user permission table.that consists of PermissionPK, UserFK, CompanyFK. I also want the username to be automatically filled in?So when a user ID is filled in on the table, it also fills in what that UserID's Username should be?As i need both the UserId and Username text for code that looks at the Environ username.
I Have a table with 15000 entries. This table lists components we use. This table is used to generate queries/forms. I have been asked to add a hyperlink to this table to link to a drawing of the component. All the drawings are in PDF and in the same folder. I am looking for a way to automatically update the hyperlink fields all at once. The Hyperlink will be in the format of servershareddrawings12345.pdfwhere 12345 is the component name from the table.
But there are a few small problems with the component names. 1. If the component begins with a B- . The drawing name will be all the characters except when there is a second dash in the component. So if the component is B-12345-678 the drawing name will only be B-12345. 2. If The component begins with AB, The drawing will be the first 5 characters regardless of what follows, e.g. AB123. 3. Finally for all other components the full component name will be the drawing name.
Putting the naming to one side, how to go about auto generating the hyperlink. I have posted this in the table section, but maybe this should be in another section like queries or VBA.
I have created quite a substantial and effective database for a small gliding club with all the major data tables being linked. I need to be able to re-index tables periodically so that running totals, which are needed to calculate statement balances, works correctly - all well and good. The only problem is that the process of re-indexing requires the data in the main table to be stored temporarily and the original data deleted. When the temporary data is appended to the main table the auto-numbering just keeps clocking up.how to reset the auto-numbering in a local table.
I have what is probably a stupid question but I've been struggling with this one for a while. I have an ordering database which has an Orders table (containing Order ID, Date, Supplier etc) and an Order Line table within which I have a combo box for Product name, supplier, price, VAT rate, Line price etc. At the moment, I have the order line table as a subform within the Order form (run from the Orders table). The problem I'm having is the subtotal and total fields. At the moment these are in the Order Line table as I cannot figure out how to get these in the Orders table. In summary, can I make a calculated field in one table that calculates values from another table (linked by Order ID)?
I have with my database. It's holds cost data including purchase made in foreign currencies which need to be converted to GBP using the correct exchange rate so a variety of reporting & stats can be performed.I have a table called Costs within which there are 2 fields
Purchase Currency Exchange Rate
I also have another table called Exchange Rates 13/14 within which there are 2 fields
Currency Exchange Rate
When a value is entered in the Purchase Currency field on the Costs table (this is a look up field linked to Exchange Rates 13/14 so it shows the listed currency in drop down) I need the database to automatically populate the Exchange Rate column in Costs i.e. match the value in the Purchase Currency field to the Currency field in Exchange Rate 13/14 and populate with corresponding Exchange Rate from Exchange Rate 13/14.I have tried the following and none work:
SQL Tried
1. UPDATE Costs SET ExchangeRate = [Exchange Rates 13/14].[Exchange Rate] WHERE Costs.[Purchase Currency] LIKE [Exchange Rates 13/14].Currency
2. UPDATE Costs SET ExchangeRate = [Exchange Rate] FROM [Exchange Rates 13/14] INNER JOIN [Exchange Rates 13/14] ON Costs.[Purchase Currency] = [Exchange Rates 13/14].Currency
3. SELECT [Exchange Rate] FROM [Exchange Rates 13/14] WHERE Costs.[Purchase Currency] LIKE [Exchange Rates 13/14].Currency
I know it is possible to have a drop down for Purchase Currency which shows 2 columns (both Currency and Exchange Rate) you can then use the exchange rate figure for a calculated field. The problem I have is that I am importing data into the costs table from excel. In Excel I can only have 1 value in the Purchase Currency column on the upload template. If I just have Euro in this column the database does not match it to the Euro in the Purchase Currency drop down and also store the correct exchange rate.
Or is the alternative to put this into the calculation of GBP Unit Cost where this somehow matches the Purchase Currency in the Costs table to the Currency field in Exchange Rates 13/14 tables and uses the appropriate exchange rate from Exchange Rates 13/14 to calculate GBP Unit Cost in Costs table.
Is it possible to have the field names in a table be set by the values in another table? The desire being that for a database used in various locations, the local variations could be changed in one table which would then propagate that change throughout all the forms, reports, tables etc.
I have a table where there are multiple vehicles, each identified by their vehiclenumber. Each record holds the vehiclenumber, date and odometer reading. I need to figure out how to calculate records in this table per each vehiclenumber.
Below is a code that works, but only when i have each vehicle with the same vehiclenumber.
SELECT tblOdometer.VehicleNum, tblOdometer.ODate, tblOdometer.Odometer, tblOdometer.Odometer AS OdomAlias, Nz(DLast("Odometer","tblOdometer","[Odometer] < " & [OdomAlias]),0) AS Previous, [Odometer]-[Previous] AS Difference FROM tblOdometer;
I have several projects with different tasks for each. I have 3 fields [fkProjectsID], [TaskOrder] and [Duration] in a table for project tracking with that structure:
I want to calculate cumulative values stored in [Duration] field (represent a number of days). I'm using the field [TaskOrder] to order different tasks within each project. With some testing, I was able to calculate cumulative [Duration] with 1 project using the DSum fucntion as following:
I was having the sequence: 5, 13, 28, 34 for respectively Task 1,2,3,4. However, when I add a second project (and then a third...), I need to be able to filter based on [fkProjectsID] as well (i.e. a specific DSum by ProjectsID). I add this criteria but I get the sum of [Duration] on each row instead of the cumulative:
CumulDuration: DSum("[Duration]","[tblProjectTracking]","[TaskOrder]<=" & [TaskOrder] And "[fkProjectsID]=" & [fkProjectsID])
I have a project that in Access. I'll be handling a survey file that will maintain answers per customer. The visit to customer is done monthly in a year, which means that a customer can have 12 visits in a year. My problem is that if I will maintain this project for the next five years or more, I have to maintain another field in my table that will block the duplicate entries.
I am writing an access database which has to store properties for an estate agent. They have a PropertyID field which is the primary key in this table. The ID is always in the following format PL219AD23 (postcode PL21 9AD and house number 23) Is there a way that once an address of a property is entered then the ID is generated from that? Or do they always have to enter the property ID themselfs.
I have a split database and need a field (Combo type) in the table to lookup values from a query in the front end. How do I do this as it doesn't see the querys because the front and back end are split?
Access 2010..One organization that we work with provides us with a block of numbers for each of the two types of contract products we order from them; we do order non-contract stuff from them also.The block of numbers are the same (i.e. 20000 to 30000 this year) for each of the two products. This means that each product can have the number 20000, for example. We call this the Tracking Number. If it is one of these products, we need to select the Contract Number.
For all other one off orders we have with them, we assign our own Tracking Number starting with 00001. This Tracking Number cannot duplicate unless it is one of the aforementioned two products.Both the Tracking Number and Contract Number are in the same table. The user selects the Contract Number from a form (connected to the Contract Number table that has all the details on the contract) and the Contract Number is populated in the same table that has the Tracking Number.Each order must have a Tracking Number (no null)..Not all orders need a Contract Number (null okay).The Tracking Number and Contract Number combination cannot duplicate.I tried setting the primary keys to more than one field in the table, but they cannot have null values.
If not... I have been working on Plan B.... an AfterUpdate on the form (either the form or a field... don't know yet) that looks at a query that only has results if there are duplicate values.
I am struggling with calculate difference between two query table values, I first created a make a table query(current meter reading) which contains one column called "meter read" , and I created a second make a table query(previous meter reading) which also contains "meter read" column, I linked those two make table queries to calculate the value difference between two date, how can I create a form to calculate diff between any two date?
I have a problem in doing a task with my form. Actually I have a button to add a new record which opens a new form there i enter the values to the record. But when I press the Addnew record button I want to calculate the maximum of the Identity field +1 and open the new form with that new number which i have calculated. How can i do this....
I'm trying to calculate a value for a field based on the value of another field, [Field1] has a value list of 28 choices I want [Field3] to take that value and multiply it by the value of [Field2]. I'm using an Iif statement and it sort of works. I looks like this:
IIf([Field1]=1 Or 2 Or 3 Or 4 Or 11 Or 12 Or 13 Or 21 Or 22 Or 28,[Field2]*0.06,IIf([Field1]=5 Or 6 Or 14 Or 15 Or 23 Or 24 Or 29,[Field2]*1.1,[Field2]*2.1))
I receive nor errors but it will only return the value of [Field2]*.06 no matter what is selected in [Field1].
I'm sure I'm missing something and there is probably an easier syntax to use, but I'm at a loss at the moment.
I'm using Access 2010. I need to calculate a score based on values selected in a table by looking up corresponding values in other tables. I have a "Project" form to create new entries into the Project table (see Table 1). When I create a new project record, I will select values for the Payback and Need fields by selecting options from a list. The Payback list is pointed at Table 2 and the Need list is pointed at Table 3. In the below example, I created the "ABC" project and selected "1 year" for the Payback field and "Repair" for the Need field. Pretty simple.
Now that I have the "ABC" project loaded to my Project table, I'd like to create a report that will show a "score" for this project. The score should be calculated as follows: Payback Impact + Need Impact. In this example, the score should be 30 (Payback Impact of 20 + Need Impact of 10).
I'm trying to step from Excel to Access and I have some issues to translate functions that I used in Excel to Access.This is how it looks in Excel.And I have issues to translate the following function in Excel to Access.
=IF(AND(I6=0),"Done",K6-A$4)
A$4 is related to cell where it states the function =now() Basically what I want is to calculate in the tablecolumn is the following.In the column "Days remaining" I want the remaining days from "date to pay" and today. If the amount states "0" then the outcome must be "done".
I am making a basic hospital management system in Access 2013.I have two tables named "Bed" and "Receipt". Bed(BedID,AssignedDate,PatientID,DischargeDate,Bed Charges) Reciept(ReceiptID,PatientID,BedCharges) I want to calculate "BedCharges" by calculating the number of days using "AssignedDate" and "DischargeDate" and then multiplying with a constant amount of charges per day. Also the BedCharges calculated in "Bed" Table also needs to be in the "Receipt" table. How can I count the number of days and then calculate the "BedCharges" in both the tables?
