Compare Rows In A Table

Nov 14, 2005

Hi,

I have a table with four columns - A, B, C, D
I want to compare the values in columns A, B and C in row 1, with the values in row 2 and if they are the same, I want to copy the value that is in column D in row 1 into column D in row 2. I then want to move to the next row in the table and compare the values in row 2 with the values in row 3 in the same way. This will continue for all rows in the table.

Any help would be greatly appreciated as my VB is not up to much.


Thanks in advance

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Compare Several Hundred Rows Against Other Rows

Nov 21, 2005

Not sure if what I want to do is possible, or at least possible the way things are set up.

I have a massive table - c. 6 million rows. It contains data along these lines:

Plan#, Item, Price, Description, Colour, Value, Location, etc.

The primary key would be Plan# + Item. Each Plan# has approximately 1,000 Items, and there is only 1 Item per Plan#. There are only a limited number of Items (c. 1500) and all or only some Items might be assigned to the Plan#. All items under each unique ID# belong together, sort of in a set. So this huge table has approx. 6,000 unique sets (based on Plan#).

To add to the confusion, Item A under Plan#1 may have different information (Price, Description, Colour, etc.) from Item A under Plan#2. I know this isn't a great way to set up data but this is what I have to work with.

Over the years it's possible that the exact same combination of Items with identical values might have been set up for multiple Plan#s. What I need to do is find any Plan#s which have the exact same combination of Item, Price, Description, etc. So if Plan#R has 200 rows and Plan#S has 201 rows, it automatically doesn't match. If Plan#R has 200 rows and so does Plan#T, all information in each record must match between the two Plan#s (with the exception obviously of Plan#).

I don't think this is possible, and if it is I am sure it's not going to be easy. So far the best I can do is to come up with finding duplicates on Item, Price, Description, etc. but that's only one record at a time and doesn't tell me if the two Plan#s match.

Any help or suggestions would be much appreciated.

Thanks!!!

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Code:
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122222 20 40
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111111 50 100

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May 1, 2007

Hello,
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Mar 6, 2006

Hi there

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Dec 17, 2004

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

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frmLogin has two textboxes for user input, User and Pass, and has one control, cmdLogin.

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Nov 19, 2006

Hi,
I am trying to compare two columns' values within the same QUERY table, but I kept on getting the "Data type mismatch in criteria expression" error. What am I doing wrong?

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Jun 13, 2013

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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.

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

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I am programming an Acess Database, the primary data come from an excel sheet. Since Access one to many relationship only works for primary key and another field in another table as foreign key, I can't have normalized database.

I will explain what I mean with a hypothetical situation.

So, let's say I have two tables: WindowT1, CustomerT2.

WindowT1 has fields: WinID (the pk), WindowName.
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I'd like to give access to the specific user to edit his (and only his) entries from the report, but I'm getting a type mismatch with the below code:

Code:
If me.UsernameID = "KraussLJ" Or Environ$("Username") Then
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I can get the msgbox to run if I block out the

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PRODUCT table:
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Chemical
ChemicalAbstract
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Flammability
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Product 1
Product 2
Product 3

Rating 3
Product 1
Product 2
Product 3

Rating 2
Product 1
Product 2
Product 3

Health
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Product 1
Product 2
Product 3

[code]....

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Code:
Private Sub CommandButton1_Click()
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End Sub
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Dim fd As FileDialog
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[Code] .....

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