Count Unique (yep, Again)
Sep 20, 2007
Hello,
I noticed my subject has been discussed numerous times in this forum. I must have read nearly all topics, but I simply can't get it to work.
I have a table listing: country | category | article | turnover
I wish to make a query which gives me:
country | sum of turnover | count of (unique) categories used by this country | count of (unique) articles sold by this country.
This way I can evaluate with how many different categories a certain country achieves a certain turnover...
It look so simple but I can't figure it out. I hope I'm clear in my question.
HEEELP!
Cheers,
Stefan
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Sep 15, 2006
Hello, I am new to Access and trying to run a query that will count only unique invoice numbers in my table. I am sure this is an easy command, and thank you for your help!
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Sep 10, 2003
Hi there:
I have a Question
In Access 2002 (XP) I have to write a query that displays unique Id's:
For Example:
CustomerID Company Name
1 ABC INC
1 ABC INC
2 XYZ INC
2 XYZ INC
3 PQR INC
The query should be 3 records.
But for some reason when I write the query in sql view it doesnot work.
Thanks,
Ashi
http://www.ringvirginia.com
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Aug 4, 2015
I want to do a unique count of dates when an activity was done in my table. The table may have multiple entries of the activity performed possibly on the same date by an individual
e.g. table entries
Code:
approvalNoSys dateAssessed Activity
100 01/08/2015 Audit
100 01/08/2015 Audit
100 01/05/2015 Audit
100 01/05/2015 Audit
100 01/02/2015 Audit
100 01/01/2015 Audit
Unique audit Count must equal 4
Code:
totV = ECount("[dateAssessed]", "R_P_Data_P", "[approvalNoSys] = '" & [Forms]![cmrOverview]![txtappNoSys] & "' AND [Activity] Like '*audit*'")
totV = Unique count
dateAssessed = date field in R_P_Data_P table
R_P_Data_P = table
"[approvalNoSys] = '" & [Forms]![cmrOverview]![txtappNoSys] & "' = criteria for the customer in question to separate them from many other customers in the table.
Activity = text field in R_P_Data_P table
audit = the activity
I'm also trying to avoid having to build total queries etc to them reference them, I'd like getting the desired outcome in an expression or small code.
I read about Ecount but my complier doesn't recognise the function
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Sep 30, 2013
In a report, I have a textbox to show the number of employees in the report.
I use this formula : =Count([last name])
Sometimes the same person has multiple entries, so the count is wrong.
How can I show only the number of different employees and ignore the duplicate names?
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Jan 10, 2014
I have 2 linked tables, tblPN & tblReceivedDate. tblPN has field PN and tblReceivedDate has field [Received Date]. The tables are used to record the receipt of different part numbers and the date they received. I want to use a query to count how many times a part number is received. The catch is that I only want to count a part once even if it is received more than once on the same date. With the data in the attached DB the count for PN 123 would be 5.how to configure the query to do what I need to do?
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Sep 20, 2005
Not sure if I worded my subject correctly. Here's my problem.. I've used query to combine 2 tables of data..
Here are my fields..
I've assignment_num field, project_num field, project_name field, emplyee_name field.
here are my data..
assignment_num field: 1001, 1002, 1003, 1004, 1005
project_num field: 20,20,15,16,15
employee_name field: tom peter, tom peter, tom peter, julie, sally
What I want is to display the employee name with 2 projects or more...
What i have done?
I've done a group by and then count project_num field.. I also added a condition whereby the countofproject_num > 1.. everything went well except that the countofproject_num display 3 instead 2..
pls help.
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Oct 27, 2014
I have a report. behind that report is a query.
The query returns the parts used for each job. This could be 1 to many, so I get 1 to many rows returned in the query for each job. There can be a number of jobs to a work schedule (I'll call this WS). Each job is for a particular model. So I bascially have
WS1 JOB1 MODELx PART1
WS1 JOB1 MODELx PART2
WS1 JOB1 MODELx PART3
WS1 JOB1 MODELx PART4
WS1 JOB2 MODELw PART7
WS1 JOB2 MODELw PARt8
WS1 JOB3 MODELx PART5
WS1 JOB3 MODELx PART6
I want to count the number of jobs each model appears in ie MODELx appears in 2 jobs, MODELw appears in 1 job.
I've read DCOUNT can eliminate duplicates but I can't see how to use it to do so.
I have (general gist)
DCOUNT("model number"."query","model number" = [model num])
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Sep 15, 2013
I am currently using the below code to query values that have a unique "OverrideDescription" and where by the "Upload Date" is always the latest.
SELECT t1.*
FROM [DaisyServiceRates-Amended] AS t1 LEFT JOIN [DaisyServiceRates-Amended] AS t2 ON (t1.OverrideDescription = t2.OverrideDescription) AND (t1.[Upload Date] < t2.[Upload Date])
WHERE t2.OverrideDescription IS NULL;
However I also need to be able to do a unique count of the [OverrideDescription] field.
I have found methods whereby I can do use, but they all use a GROUP BY function, the issue being that when I use this method it prevents be from updating the values saying "recordset not updateable".
Any method that does not use the GROUP function. I did also try preforming the COUNT on a separate table and doing as JOIN, but this also prevented updates to the date.
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Jan 16, 2014
I have a basic query off a currency table :
Quote:
SELECT tblCurrencies.CcyID, tblCurrencies.Ccy
FROM tblCurrencies
ORDER BY tblCurrencies.Ccy;
Now - I have a separate table of balances, which is linked to the currency table by the same CcyID, and which also has identifiers to link it to other tables (e.g. AccountID)
As part of the above query, I want to return the count of unique AccountID's in the balance table for each currency. So in other words, I want to know, for each currency, how many unique accounts exist?
Each AccountID could appear one or more times in the balance table (one-to-many relationship), so I only want to count the number of unique ID's.
So I started with the following :
Quote:
SELECT tblCurrencies.CcyID, tblCurrencies.Ccy, Count(tblBalances.AccountID) AS NoOfAccounts
FROM tblCurrencies INNER JOIN tblBalances ON tblCurrencies.CcyID = tblBalances.CcyID
GROUP BY tblCurrencies.CcyID, tblCurrencies.Ccy
ORDER BY tblCurrencies.Ccy;
But this just gives the number of AccountID's per currency (regardless of duplication within them)
I found this article which informs me that a Count(Distinct) query won't work in Access and to use subqueries instead.
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Jan 13, 2015
I have the following code:
Code:
Dim rs As DAO.Recordset
Dim db As Database
Dim strSQL As String
Set db = CurrentDb
strSQL = "SELECT DISTINCT tbl_contract_lev.ContractID FROM (tbl_leverancier_gegevens INNER JOIN
[Code] ....
The result of the query is a list fo unique values but by including the "count" function in SQL seems not te be working in combination with "DISTINCT"...
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Jan 19, 2015
Code:
' count records in query
Dim rs As DAO.Recordset
Dim db As Database
Dim strSQL As String
Dim beginDatum As String
Dim eindDatum As String
Set db = CurrentDb
[code]....
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Feb 7, 2014
i have one table in which ID is Primary ID with Different Values
Like
ID NAME PAN
1 A X
1 B Y
1 A X
2 C Z
2 C G
3 D U
it shows that ID 1 having 2 Name (A& B,with PAN, X & Y ,respectively).how can i get this that ID having More than 1 Value like 1 and how can i select only these records ID which having more than 1 value and how can i update values for 1 ID.
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Aug 1, 2014
I have been working on a simple data base for some time now (beginner level) and am still trying to improve it. I would like to do something but before that I would like to have your opinion to know if it is even possible?I have a query QryMainReport:
Start Date/Time
End Date/Time
Employee
At the moment this is what the format of my report looks like (I removed other unnecessary fields):
StartTime----------EndTime---------------Employee
12/06/2014 01:00--12/06/2014 03:00------John Smith
12/06/2014 04:00--12/06/2014 06:00------Jane Doe
13/06/2014 02:00--13/06/2014 05:00------John Smith
13/06/2014 08:00--13/06/2014 08:00------Jane Doe
I would like to do as a report. (Dates would always be from Sunday to Saturday). I am not sure it is possible to do that. I suppose first it would mean:I would have to do a query to separate the times from the dates?I would have to find a way for Access to find the unique dates and unique names?Does it mean I have to use cross tab queries?
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Apr 13, 2006
I have a table tblBookings.
In this table it has a bookingID, CustomerID and some other none relevant details.
The CustomerID comes from table tblCustomer. i.e a customerID must exist in the customer table to be allowed in the bookings table tblBookings
A customer can exist in tblCustomer without existing in the booking table.
I am trying to write a query that will list each and every customer ID in the tblCustomer and count the number of bookings that that customer has (even if it is zero).
I have a query that will count the bookings if they exist in the booking table and display the number of times that a customer appears in the bookings table.
SELECT tblBookings.CustomerID, Count(tblBookings.CustomerID) AS NoOfBookings
FROM tblBookings
GROUP BY tblBookings.CustomerID;
How do I create a query that will do this but list all customers even if they don't exist in the bookings table (but obviously occur in the customers table)
I am trying to create a similar query where all bookings per hotel are listed even if no bookings are made for that hotel. I am guessing the answer is the same as above.
The Ritz. Bookings 0
The Hilton. Bookings 3
The Carlton. Bookings 0
The Lowry. Bookings 2
For every hotel.
That kind of thing.
If you need more information please shout.
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Aug 16, 2015
I have a table that has 5M+ accounting line entries. Below is an example of one accounting journal in the table.
BUSN_UNIT_IJRNL_DJRNL_ICNCY_CMONY_A
CB0014/07/20140002888269323AUD16797
CB0014/07/20140002888269323AUD-16797
CB0017/07/20140002888269323AUD16797
CB0017/07/20140002888269323AUD-16797
The journal ID above was an accounting entry, debit $16,797 and credit $-16,797. because it was entered as a reversing journal in the system, the table has captured the Journal ID with 2 dates. For my purpose i only want the one date (MIN) date, the total amount of the journal (either the debit or credit amount 16,797) and the total number of lines the journal ID has so in this instance I want the count to be 2 and not 4.
Right now this is what i get
BUSN_UNIT_I JRNL_I CNCY_C SumOfMONY_A CountOfJRNL_I MinOfJRNL_D
CB001 0002888269 AUD 0 4 4/07/2014
This is the output i would like
BUSN_UNIT_I JRNL_I CNCY_C SumofMONY_A CountofJRNL_I MinOfJRNL_D
CB0010002888269323 AUD16797 2 4/07/2014
Im thinking with the total sum because theres debits and credits is there a way to do the absolute value of the journal MONY_A then divide by 2?
current SQL
SELECT [One Year Data Lines].JRNL_I, [One Year Data Lines].CNCY_C, Count([One Year Data Lines].JRNL_I) AS CountOfJRNL_I, Min([One Year Data Lines].JRNL_D) AS MinOfJRNL_D, [One Year Data Lines].BUSN_UNIT_I, Sum([One Year Data Lines].MONY_A) AS SumOfMONY_A
FROM [One Year Data Lines]
GROUP BY [One Year Data Lines].JRNL_I, [One Year Data Lines].CNCY_C, [One Year Data Lines].BUSN_UNIT_I
HAVING ((([One Year Data Lines].JRNL_I)="0002888269") AND (([One Year Data Lines].CNCY_C)="aud"));
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Sep 20, 2005
Hi,
Just spent the past hour in here trying to nut this one out, but not sure I've found something quite the same...though I know the answer will be painfully simple.
I have a customer table and a product table, and a query that groups customer first and last names along with a count of products per customer e.g. 1,1,3,2,3,4,2,1 indicates customer A buys qty 1 of product z, customer B buys qty 1 of product x, cust C buys qty 3 of product y and so on.
All I need to do now is do something to also output the total number of products. ie as per example above, 1+1+3+2+3+4+2+1 to get 17.
Can I do a count of the count or do I do some sort of sum of the count results?
I've tried everything I'm capable of as a newbie, and I'm not having any progress.
Any help appreciated.
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Jul 14, 2005
I am just about to start a new DB, but there are a few things I need to sort before i start.
I am working with a quotation system etc which will require the use of unique IDs...
eg 000123 then 000124 etc, this bit is not a problem.
The thing I would like to know how to do is when someone makes an order, I would like the quotation number to be changed slightly to add more detail.
For eg, If the quotation number that is allocated is 00123 and they then order a Conservatory, I would need to have this 00123 become 00123CNS, but this can be in a seperate field, Which I would need anyway.
The question is, How Would I go about this.
I have a table that describrives the product, TBL_PRODUCTS; ID, Product_Type, Product_ABBR
Product_Type = for e.g Conservatory
Product_ABBR = for e.g CNS
I would need the ref number and product abbr combined to create an order number.
[note] There will be a check box to say of ordered ot not, so I assume there will be an If statement somewhere?
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Sep 24, 2005
I've been on other forums with this problem but no one can solve my problem.
I've created a database with 3 tables that are linked:
- tbl_customer
- tbl_rates
- tbl_destination
They have the following fields:
tbl_customer
- cust_id
- customer_code
- first_name
- last_name
- company
tbl_rates
- rates_id
- cust_id
- rates_id
- currency
- pre_rate
- cur_rate
- fut_rate
- comment
- eff_from
tbl_destination
- dest_id
- destination
- destination_code
What I've done is created a form based on the tbl_customer table and used tbl_rates as a sub form. tbl_destination is used to populate a combo box that is situated in the sub form.
Each customer has their own rate sheet. Each rate sheet has different destinations and rates. Rates for the same destination are constantly changing. I need to use this spreadsheet to record the history of every change made to the rates of a particular destination. To do this I've just added the same destination with a new rate.
Now, what I want to do is to create a query that will only show the latest entry of a particular entry.
Eg. tbl_rate
Rate_id - Dest_id - currency - pre_rate - cur_rate - comment - eff_from
1 - 1 - £ - 0.01 - 0.03 - increase - 19 Sept 05
2 - 2 - £ - 0.12 - 0.14 - increase - 19 Sept 05
3 - 1 - £ - 0.03 - 0.02 - decrease - 23 Sept 05
I would want the query to show me the following from the above table:
Rate_id - Dest_id - currency - pre_rate - cur_rate - comment - eff_from
2 - 2 - £ - 0.12 - 0.14 - increase - 19 Sept 05
3 - 1 - £ - 0.03 - 0.02 - decrease - 23 Sept 05
Basically, the query should only show the latest entry which involves Dest_id '1' because there were two entries with the same id.
I've been given advice about this issue but none that actually work.
I would be grateful for any help on this matter.
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Nov 2, 2004
So I've read a good 100 postings or so so far on the subject of how generating a unique identifier through any other means than an autonumber can be dangerous. But I can't resist the opportunity to simply ask if there is a way to make this possible, if only through a calculated field...
In my single user database, I have an employment table with an autonumber [EmploymentID] field as its primary key. The employment table exists in a one-to-many relationship with it's child, the income table where each form of income is recorded as it is recieved so that one form of employment (or employer) can produce many unique forms of income (like weekly paycheques).
I would like to be able to generate an identifier for the income table that is a combination of the parent [EmploymentID] field and an increasing number to produce something that looks like this:
1006789-001 -|
1006789-002 -|--> Same EmploymentID
1006789-003 -|
1006790-001 ----> New EmploymentID with a reset numeric
Any ideas?
~Chad
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Nov 12, 2004
Hello Everyone,
I've data already entered (access/tables) on two different computers, however for the clientid on one computer has a hypen (-) and on another - because of something they couldn't get the hypen to work - so they used the slash (/) my Q is: 1) can I search and convert these to one, 2) is it wise the have / or - in the id?
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May 20, 2005
I am very new to db programing so please forgive for such a simple program.
Here is the deal. I have a db for about 500 students.
I would like the table [Students] to create a unique ID "number" for each student. I would like the number to be based on information from the same table. For example if the student's name is John Doe and his number is 555-1212 then I would like to the id to be JD1212. I plan on using more than name and phone number but this was just to show you, what i am trying to get done.
I can do this using a form and a calculated control, but I can't get the table and form to kiss and make up. I was also told you can't save data from a calculated control in a form to a table and it is gernerally not a good idea, so I was told.
Any help would be appreciated.
Sincerely,
Pastor Nick.
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Jul 6, 2005
I have a beginner Question....How can I set an unique Index on a field in a table if all the four fields are using duplicate values?
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Jul 31, 2007
I have thought about this for days now (and nights) and I have simplified my problem below. (I even bought a book)
I have three tables: 1, 2 and 3.
Table 1 = a, b and c
Table 2 = x, y and z
Table 3 combines table 1 and table 2; ax, ay, az, bx, by, bz, etc.
Table 1 and Table 2 are both One to Many with Table 3.
The Table 1 field and Table 2 field are a ‘unique’ index combination.
My Problem:
It would be very handy to produce a list of the ‘unique’ index combinations that are not in Table 3. That is, the ‘unique’ index combinations that aren’t used yet.
You could do this by trial and error, but is there a Query you can run that will give you a result that you could then Append?
An Unmatched Query on the Table 3 / Table 1 contents will point out a complete lack of either a, b or c as will the same Query on Table 2 for missing x, y or z.
A query with the two non-linked tables will give every combination, but is this the best way to do it? It works by default when you use it to append table 3, but is it the best way to do it?
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Sep 30, 2007
Hi There,
I am setting up a basic Data Licence database. For each new record I enter I want a unique number to appear at the top of my form that can not be changed. I would like the number to be the date it is entered plus the auto number so, YYMMDD-(auto number) eg 071001-1. I'm sure it's something simple but I am only new to access.
Also while I'm here, on my form I have a Product field, how can I make it so I can enter in more then one product?
I would really appreciate any help!
Thank you,
Dane
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Apr 14, 2008
Is there a way to format the random auto number to just be 4 digits long? Or does anyone know how I can programatically create an auto unique field? This number has to be stamped on a key so it can't be longer than 4 characters but it has to be unique. Any help would be greatly appreciated.
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