Make Calculated Field In A Table To Not Allow Duplicates?

Aug 15, 2013

Is it possible to make a calculated field in a table not allow duplicates?

There is obviously no option to select No Duplicates in the field settings?

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Tables :: How To Make Calculated Field Based On Field In Another Table

Jun 18, 2014

Table1 contain Two fields (3Months) and (6Months)

Table2 contain Two fields (3Months) and (6Months)

the table 2 is the source of a form that will let the user change the numbers. table 1 should change Date1 and Date2 Fields based on the two fields (3months) and (6months) if i want to make a lookup wizard it should be changed manually and if i make a calculated field i can't find other tables in the expression builder

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Tables :: Make Calculated Field In One Table That Calculates Values From Another Table Linked By Order ID

May 13, 2015

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)?

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Number Duplicates With Calculated Field In Query

Nov 20, 2011

I'm trying to make a calculated field in query that will number duplicates, not count them.

For example, I have a table with the following:

Joe
Joe
Joe
Mary
Mary
Henry
Dave
Dave
Dave
Dave

I want the query to display:

Joe #1
Joe #2
Joe #3
Mary #1
Mary #2
Henry #1

Dave #1
Dave #2
Dave #3
Dave #4

I'm fairly new to to Access and I've been trying to get that to work for awhile now.

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Make Table For Duplicates Only

Jan 11, 2005

How do I make a table from another that will only display the duplicate records in a field .... I have add'l fields in addition to the partno but not relevant.

i.e. partno new table will show:
0001 0001
0002 0001
0001 0003
0003 0003
0003

Thanks for your help....

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Forms :: How To Make Calculated Field Stay On Top

Jan 14, 2015

My form has a button that has a calculated field on it (a dcount(...)). When the button is clicked, a couple of conditions are checked and if all is ok, it runs the vba code. If the tests fail, it returns to the form without running the code. All works correctly, except that the dcount number has disappeared. I finally figured out that it is now hidden behind the button. How do I bring it forward again programmatically?

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How To Make Calculated / Concatenated Text Field Unique

Feb 12, 2014

I have a calculated field which consists of a few other fields concatenated, i.e. [field1] = [field2] & [field3] & [field4].

I need field 1 to be unique when its concatenated, but fields2-4 don't need to be unique. Is there a way to do this?

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Queries :: Make Table Query With Calculated Columns

Oct 8, 2013

I am trying to run a make table query that involves using a linked table in Ms from a SharePoint list. However, a few columns I wish to include in my Make table query are calculated columns from the SharePoint list.

The make table query will not run saying "Calculated columns are not allowed in SELECT INTO statements".

Can any think of a solution or a potential work around to this?

I need to create a table with these columns in it.

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Tables :: Auto-populate Table Field From Calculated Field In Another Table?

Jan 15, 2015

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.

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Is There Any Way To Make A Primary Key Contain Duplicates??

Mar 3, 2006

hi,

is there any way to make a primary Key contain duplicates??

any ideas ??

Many thanks

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Find Duplicates And Create Table With Dates Of Duplicates

Feb 12, 2008

Hi this is my first post... so hi all :)

ok what i have is a table with contact details 900k plus

there are about 90k of which are duplicates.

this is the basic feilds that are important in this case.

Id, data_source, data_recived, data_code,

what i want is to have a table with unique records (no dups in data_code)

this table will look like this...

Id, data_code, Num_dups, dup1_source, dup1_date, daysbtw_Dup1_dup2, dup2_source, dup2_date, daysbtw_Dup2_dup3 ,dup3_source, dup3_date, daysbtw_Dup3_dup4 ,dup4_source, dup4_date,

I know there is no more than 4 dups of each record.

what i want from this is a table that will give me a record of how many dups for each record then all the dates that they were added and the date between each record entry.

if anyone can help it would be great .

thanks in advance.

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Calculated Field In A Table?

Nov 12, 2004

Hi folks,
Is there a way to have a calculated field within a table? I have a table that I've added four fields to: AmountIT, AmountRE, AmountKK, AmountRes. I want to be able to sum these four fields to give AmountTotal, but is there a way to have in a table?

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Help Please Calculated Field In Table Or Other?

May 23, 2005

Im not sure the best way to go about this and would be most grateful if I could be pointed in the right direction.

If I had a table called tblEmployee and a field within it called "PayRate" and another table called tblHours with a field in it called "LabourCost" and a field called "Hours". What is the best way to hold the "LabourCost" value so it doesnt get affected if someones "Payrate" is changed.

I expect I have asked this all incorrectly and I really do apologise.

Many thanks in anticipation... :)

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Is It Possible To Have A Calculated Field In A Table?

Mar 31, 2006

In an orders table, i want to have a total value calculated... in the table... i was only able to do that in a query... but is it possible to do so in a table?

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Add Calculated Field To Table

Oct 12, 2015

I am calculating a field fldD. I have added the following to the Control Source of fldD "=[fldA]+[fldB]+[fldC]"

Can I save the value that is created back to the table i.e. fldD will be the value of =[fldA]+[fldB]+[fldC]

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Ignoring Duplicates In Table Field Values That Is For A Combo Box Drop Down List

Apr 13, 2014

I'm trying to create a combo box that takes its values from a field in a table, the thing is that this field has duplicates because:

* The table is a qualification look up table
* It has 3 fields: QualificationID (autonumber), Qualification(e.g. Bachelor), Programme (e.g. Science)
* E.g of duplicate values (this is not a problem as it is necessary) Bachelor of Science, Diploma of Science, Certificate of Science

What I'm trying to do is create 2 single-columned combo boxes that are a parameter for a query and it's working except the combo boxes show duplicated valuesIs there a way to get the query that is the row source for the combo box to eliminate duplicates?

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Make Field Auto Populate Based On Value Of Field In Another Table

Mar 4, 2008

I'm creating a database that keeps a track of questions and scores.

The questions in the database need to be dynamic and are changed frequently.

I have a scorecard table which keeps a record of scores and the applicable question at the time the record was saved. I need to do this because in 6 months time we may want to provide feedback. As the question may have changed we need to be able to refer back to what the question was.

I want the question field in my scorecard table to populate with the value in my question table.

I have tried a number of things including setting the question field in the scorecard table to a lookup based on the following query:

SELECT tblQ1.Q1
FROM tblQ1;

This works however only as a list or combo box. I don't want the user to have to select the question. I want it to auto populate, is this possible?

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Storing A Calculated Field On A Table

Aug 10, 2007

Hi,

I know it breaks all the rules to store a calculated field on a table, but I've painted myself into a corner with the way I built this particular database, not good, I have repeating groups and basically the whole database is built this way. I need one form to store a calculated value on a table to solve a problem on a report that encapsulates the total of all the repeating groups. Before you start the lecture, I know I messed up, but this is way to far down the road to start over. Any help would be greatly appreciated.

Gary

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Table Calculated Field Creation?

Feb 12, 2008

Is it possible (and logical) for me to create a table with a calculated field from 2 other fields in the same table? Example; I have a long time field (mm/dd/yyyy hh:mm:ss) aka StartTime, and a long time field EndTime. I would like to subtract the StartTime field from the EndTime field to get the total time elapsed, but in hh:mm:ss format. I can get it in hh:mm format, but I really need the hh:mm:ss format. Any Ideas? :cool:

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Calculated Field From Form To Table

Sep 18, 2006

Hello,

I have been reading various threads about this subject and I know that one shouldn't store a calculated field in a table.

I believe this may be an exception to the rule (but I could be wrong).
I am making a pricing database that will use a few manual inputs and the rest of the fields will be calculations (gross/profit margin, expenses) based off these inputs. We need to have these calcuated fields stored because they are essential to the pricing decisions and we will have to go back and access these fields at a later time. Another reason for this is because there will be at least one report that will be used to compare prices and calculated fields associated to a certain product by company, program, item type, ect...


Any help would be greatly appreciated.

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Tables :: Get Rid Of Calculated Field In A Table?

Sep 13, 2013

I've learned the hard way about using calculated fields in a table. I used on while building in Access 2010 for users that will be using Access 2007. Once my testers pointed out the error message, I did some research and realized my calculated field was the problem.

So, I created a query to replicate the calculation, deleted the offending field from the original table and redirected everything to point at the new query vice the original table.

However, my testers are still receiving the error about needing version 14 to access that table. There isn't a calculated field there any longer, but they still can't access that table. Did that calculated field put some sort of taint on my database that can't be removed? I'm not sure what to do. Do I need to start over, so that a calculated field was never part of the database to begin with? If so, how much of my existing one can I reuse?

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Tables :: Using NZ In A Table Calculated Field

Jul 22, 2013

Access 2013

I am trying to add some numbers together for a number of fields, of which at least one field will either be 0 or empty. I am trying to use the following formula in a calculated field in a table:

IIf(IsNull([Price Increase %]),[Total],([Total]*[Price Increase %])+Nz([LumpSumAnnualIncrease]))

Access returns an error statement: The expression XXX cannot be used in a calculated column.

Is there a different formula I should be using, or a work around, other than using the formula in a query.

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Feb 17, 2014

I did the calculated fields in my table but in my datasheet they are not appearing. Are they not supposed to show there? I have not created any forms yet.

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Oct 3, 2006

I have a form which calculates alot of numbers. Im trying to figure out how to save the calculation to a table field. Is this possible? Can someone help me with a solution please

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General :: Populate Calculated Field Into Table

Aug 6, 2013

I need to populate a table with Grid reference values consisting of 6 figure integers, eastings and northings.

I am receiving/downloading the Grid Refs in a UK Grid Tile format, with 3, 4 or 5 figures preceded by letters.

E.g. SK 456 849, SP 6789 4356.

I have used some query functions and written a bit of VBA behind a form to convert the received coordinates into the full coords I want. The coordinates are now in unbound controls on a form, and I want to pass these back to a table so I can use the data for display purposes.

Ideally I want to link to the table from a GIS and autoupdate without having to open the database (my imported data is linked in to feed the database automatically).

I have done some searching and not found a method to pass the values into a table - What is my best way of doing this automatically?

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Tables :: Calculated Field In Table Can Only Sum Whole Numbers

Oct 1, 2014

Access 2010.

Have a table with columns of data which I want to total at the end of each row. The Calculated Field does this simply enough but it only seems to be able to add whole integers? How do I get it to accept and add values to 2 decimal places?

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