Count The Distinct Items

Jun 3, 2007

Hello all,
I am new to this forum. I have this problem where I need to sort the 4 books in the tables below according to the highest quantity of book sold.In this scenario,
Book C would be 1st in the table with a total quantity of 8.
How do I write a query in access to perform such operation. I have to use DISTINCT to get each book and also count the quantity(e.g. Book C:5+8).
But it seems that I can't use Count and distinct together in Access.

Title SalesNo Quantity
BookA22
BookB 31
BookC 45
BookC 53
BookD 6 1

Hope u all can help!

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Queries :: DISTINCT COUNT Of Name If Total Number Of Items Greater Than 0

Jan 29, 2014

I have 2 tables linked with a 1 to many relationship by NAME. Tables look like this....

TBL-STORE

NAME ADDRESS
Walmart 12 Nowhere
Target 14 Somewhere
Lowes 10 Anywhere
Sears 16 Nowhere

TBL-PURCHASES

NAME [NUMBER OF ITEMS] [PURCHASE DATE]
Walmart 4 1/4/14
Walmart 2 1/5/14
Target 0 1/5/14
Lowes 3 1/5/14
Sears 1 1/5/14
Sears -1 (returned to store) 1/6/14

I want a DISTINCT COUNT of [NAME] if Total[NUMBER OF ITEMS]>0, so the correct number will be 2 in the example.

This is one way I've tried to write the SQL, but I keep getting an error...

SELECT Count([TBL-STORE].[NAME])
FROM [TBL-STORE] INNER JOIN [TBL-PURCHASES] ON [TBL-STORE].[NAME] = [TBL-PURCHASES].[NAME]
WHERE ([TBL-PURCHASES].[NUMBER OF ITEMS]>1)
HAVING ([TBL-STORE].[NAME])="DISTINCT");

I also tried an Count(IiF( and can't get that to work either..

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Count Distinct

Jul 29, 2005

Hi Everyone!,

I have a table with the follwing;
ShopID, CustomerID, Month, Item_ref, Product Category

There are about one thousand shops.
The CustomerID field is only unique per shop.
I.e. all transactions for customer ID '002' in shop 1 will be for the same customer, but customer ID '002' could appear in another shop and will be a different customer,
I want to be able to bring back a list of distinct customers, the number of items they have had and the product categories.

Has anyone got any ideas how I do this? I presume I would need to do a count distinct or something??

thanks!,

Sasha

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Jan 28, 2007

I have a table like this in MS Access database:

IDDateCustomerIDInvoiceNoItemNoAmount
101/01/2007A1AAA1
201/01/2007A1BBB2
301/01/2007A2CCC3
601/01/2007B5AAA6
701/01/2007A6BBB7
801/01/2007B5BBB8

I want to get disctinct count of InvoiceNo while summing up Amount by Date and CustomerID in one query. Firstly, I tried to use correlated query to count unique records but it failed.
SELECT A.Date, A.CustomerID, (SELECT COUNT(B.InvoiceNo) FROM Table1 B WHERE B.Date = A.Date AND B.CustomerID = A.CustomerID ) AS CountOfDistInvNo, Sum(A.Amount) AS SumOfAmount
FROM Table1 A
GROUP BY A.Date, A.CustomerID;

The result of Count is not a unique count. Can anyone tell me what's wrong with this correlated query? :confused:

After hours of googling on internet, the solution I got is equivalent to querying on top of the resulting table from another query.

My final query is

SELECT B.Date, B.CustomerID, Count(B.InvoiceNo) AS CountOfInvoiceNo, Sum(B.SumOfAmount) AS SumOfAmount
FROM (SELECT A.Date, A.CustomerID, A.InvoiceNo, SUM(A.Amount) AS SumOfAmount FROM Table1 A GROUP BY A.Date, A.CustomerID, A.InvoiceNo) AS B
GROUP BY B.Date, B.CustomerID;

Is there a better solution than this in Access? :)


Thanks,

Huyeote

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Distinct Count

Jun 18, 2007

Tried several suggestions in the forum but haven't found one to match my needs.

I have one table, Jupiter and need to use this query

SELECT Jupiter.codename AS Build, Count(Jupiter.tooling_ind) AS [# Needing Tool], Count(IIf([tool_req_type]='OR',([requisition_no]))) AS [# Tooled], [# Tooled]/[# Needing Tool] AS [% Tooled], Jupiter.tooling_ind
FROM Jupiter
GROUP BY Jupiter.codename, Jupiter.tooling_ind
HAVING (((Jupiter.tooling_ind)="Y"));

For each "codename", there is an attached "part_no" which can appear under a codename several times. The problem is that I need to count only one instance of the "part_no" for each "codename".
So, my query looks like this:
Build # Needing Tool #Tooled
LP1 769 192

The # Needing Tool is counting every record that, say pn 10592 shows up in and I need it to be counted only once in each "Build"

I did try this suggestion I found with no results.

SELECT Jupiter.codename AS Build, Count(Jupiter.tooling_ind) AS [# Needing Tool], Count(IIf([tool_req_type]='OR',([requisition_no]))) AS [# Tooled], [# Tooled]/[# Needing Tool] AS [% Tooled], Jupiter.tooling_ind
FROM (SELECT DISTINCT Jupiter.part_no FROM Jupiter)Jupiter
GROUP BY Jupiter.codename, Jupiter.tooling_ind
HAVING (((Jupiter.tooling_ind)="Y"));

Is there a way to do this somehow?

Thanks!

Toni

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Jul 6, 2007

I've searched on google for count distinct help but I had no luck. I'm counting 2 different columns and when the query is run the counts in both columns appear exactly the same. Also, I need a SUM distinct (if possible) to sum only where it is being counted in 'CountOfCar_Nr'. Here is my SQL....

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Count Distinct

Aug 30, 2005

I'm building a sort of uberquery to do some calculations on a dataset for me, and I reached a point where I'm having some problems. I'm going to have to assemble the main query by doing a join on several subqueries.

Essentially, I have one table with the following fields (DrawingNo, DrawingRev) and another table with a great deal of data in it, but as far as this problem is concerned, it has (DrawingNo, DrawingRev, OrderNo, SPOOL). I have several tests that have to be performed.

The first table contains a master listing of al drawings we are supposed to have, the second contains information related to procesing the drawings. There is one row in the second table for each piece to be made from each drawing.

The first test is to verify that no gievn revision of any drawing has been split across more than one OrderNo. Essentially, I Count(OrderNo) and group by DrawingNo and DrawingRev, so that there is one line in the query for each drawing/revision pair, and a count of the number of OrderNos that meet those criteria.

The second test (and this is the one I have a problem with) involves taking a count of the number of unique values of DrawingRev that occur for a given DrawingNo. Something like SELECT Count(DISTINCT Drawingrev) FROM SecondTable GROUP BY DrawingNo should work, but Access doesn't appear to support "Count(Distinct". How do I get around this, and remember that any answer has to be able to be used as a subquery.

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Sep 13, 2011

I have a query I have 4 fields:

E.G.

Field1 Field2 Field3 Field4
C 20 25 145541
C 40 20 145541
C 10 10 145540

D 20 20 145540
D 10 10 145538

I need to obtain:

C 70 55 2
D 30 30 2

I need to group Field1 and sum Field 3 and field3 and count the UNIQUE ID in field 4.

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COUNT() And DISTINCT Functions Help Needed

Jan 4, 2007

Hello, guys. First of all, may all of you have a very cool New Year 2007!

In my MS Access database i have 2 tables: Table1 and Table2. These are related by means of the fields Field1 (Primary key of Table1) and Field2 (Secondary key of Table2). The relation is 1 to Many.

I pretend to count the rows from the Table2 with different Field2 values. Thus, the following query would be an ideal solution:

SELECT COUNT(DISTINCT Field2)
FROM Table2

Unfortunately, the DISTINCT clause is not admitted within COUNT parenthesis. So, what i came up with is:

SELECT COUNT(*)
FROM Table1
WHERE Field1 IN (SELECT DISTINCT Field2 FROM Table2)

It works, but it takes too long to run the main query, where i embedded several subqueries like the one above.
Is there any other way to get the same result reducing the response time?

Thanks for your attention in advance.

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Jun 3, 2015

Extended Cost] and salestran.[Extended Price] for each salestran.[SKU Code/Number], Count the number of unique customers, salestran.[Customer Code/Number], per SKU for any transactions equal to or after salestran.[Transaction Date] 11/1/2014.

Problem is, doing a regular count on the Customer field returns an incorrect value. It counts the number of times the sku appears within the given date range, ie 6 transactions with 2 customers, my count says 6. I need a distinct count on the customer, for the above example I want to see 2. Here is the code I have so far which yields an error of "At most one record can be returned.." distinct count in my Select statement along with the other fields I want to see, ie Summary data and SKU.

SELECT Salestran.[SKU Code/Number], (SELECT COUNT(cd.[Customer Code/Number]) AS Count FROM (SELECT Distinct [SKU Code/Number], [Customer Code/Number] FROM Salestran) as cd GROUP BY cd.[SKU Code/Number]) AS [Number of Customers]
FROM Salestran
WHERE (((Salestran.[Transaction Date])>=#11/1/2014#))
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JOB
PAY_DATE
LOCATION

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Dec 9, 2014

I have the following SQL which returns rows of distinct numbers that are calculated from a field.

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I need to count the number of unique "NumberOfCalls" entries that there are in a list of about 50 rows. Currently the SQL returns a list of numbers like this:

1307
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1401
etc...

I just want NumberOfCalls to show "3". Is there an easy way to do this?

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I'm trying to write a query to get a count of Volunteers under a certain Job Code for a given year - problem comes in that a single Volunteer may record hours multiple times under a Job Code in a given Fiscal Year. I can't seem to get "Unique Values" to work. From my research it looks like I need a two-part query but (as a newbie) I'm not quite sure how to write that. I have two queries, one that works and one that doesn't.

This one counts total amount of hours volunteered under a given Job Code, it works:

Code:
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This one attempts to count number of Volunteers that worked under each Job Code in a given year - it instead counts number of entries under that job code. What I think I need to do is count unique instances of the NamesIDFK, but I can't seem to get that to work.

Code:
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What code can I use for only get a count of 1

FOrgot to mention, when I use the DCount with numerous examples, I get #Error

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Syntax error (missing operator) in query expression 'Count(Distinct Customer)'.

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