Queries :: Subquery To Eliminate All But Show TOP 1 Of A Field
Jun 24, 2015
I have a one-to-many query which I would like to add a subquery to eliminate all but the TOP 1 of a field.
Here is the SQL:
Code:
SELECT QrySitesBatteries.SiteKey, QrySitesBatteries.SITEID, QrySitesBatteries.Battery
FROM QrySitesBatteries
WHERE (((QrySitesBatteries.Battery)=[Forms]![FMHome]![Battery])) OR ((([Forms]![FMHome]![Battery]) Is Null))
ORDER BY QrySitesBatteries.SITEID;
And I would like to only show the TOP 1 of the SiteKey field.
So, I think I have to add the subquery before the ORDER BY, but how to do it?
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Dec 3, 2013
We are developing a complaints tool. Each completed complaint needs to be signed off by 3 leads and I'm hoping to display the progress of this in a form. Obtaining the first is simple and I was able to do that relatively quickly. The subsequence ones are now giving me a headache as it doesn't seem I can reference the initial subquery field in the others.Here's what I have so far:
Code:
SELECT COMPLAINT_TBL.COMPLAINTID, COMPLAINT_TBL.CASENUMBER, COMPLAINT_TBL.COMPLAINTANTFORENAME, COMPLAINT_TBL.COMPLAINTANTSURNAME, BUSINESSUNIT_TBL.BUSINESSUNIT, COMPLAINT_TBL.FINALRESPONSEDATE,
(SELECT TOP 1 [SIGNOFF_TBL].[SIGNOFFDATE] FROM [SIGNOFF_TBL]
WHERE [SIGNOFF_TBL].[COMPLAINTID] = COMPLAINT_TBL.COMPLAINTID
ORDER BY [SIGNOFF_TBL].[SIGNOFFDATE] DESC) AS FIRSTSIGNOFF,
[code]....
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Jun 7, 2013
I've got a hopefully an easy question - how to create a form filter? I've got a form with a subform. Form is showing all records from a table, but some records on the subform are blank. I want to create a filter which will eliminate any record from the form where there is nothing to show in the subform.
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Feb 27, 2015
I am using Access 2013 and have created a music inventory database.I have a question about formatting some text in a table. One of my tables has the following fields:
tblArtist
Artist ID
DVD Number
Artist Last Name
Artist First Name
Artist Full Name
In my form, I want the artist's name to appear like this:
Mozart, Wolfgang
Dylan, Bob
Beatles
Aerosmith
I know how to format the table to do this, and I know how to construct the form for this. To format the name, in the tblArtist table, I use the following expression in the Artist Full Name field:[Artist Last Name] & ", " & [Artist First Name]
If an artist has only one name, such as Aerosmith, I enter it in the Artist Last Name column. Artists such as The Beatles or The Rolling Stones, I just omit "The."When a one-name artist's full name appears in the form, there is a comma after their name.
Is there a simple way to eliminate the comma if there is no text in the Artist First Name column? If so, what is the simplest, easiest, most practical novice-friendly way to do this?
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Jun 17, 2015
I am trying to figure out a logical WHERE condition. I have a Query that gives me data,
Code:
Name | Start | End
--------+-----------------+-------------
Paul | 30-May-15 |
Eugin | 21-May-15 | 28-May-15
Francis | 04-Mar-15 | 08-May-15
Samuel | 10-May-15 | 13-May-15
I want to have only Paul and Francis. As Eugin start is 21-05-2015 and End is the same month, so is Samuel's. So I want to eliminate those two records.I have checked pbaldy's web of overlapping records. But unlike that, I need something customised.
Begins and ends before range - we don't want - Yes
Begins before, ends during - we want this one - Yes
Begins and ends during - we want this one too - NO
Begins during and ends after - we also want this one - Yes
Begins and ends after - we don't want this one - Yes
Begins before and ends after - we want this one -NO
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Jan 8, 2015
I have a query as follows :
SELECT tblCase.CaseId, tblCase.ReqReceived, tblCase.Letter_AMPI
FROM tblCase
WHERE (((tblCase.Letter_AMPI) Between #4/1/2014# And #3/31/2015#)) OR (((tblCase.ReqReceived) Between #4/1/2014# And #3/31/2015#))
ORDER BY tblCase.CaseId;
I am looking for all records where either the field Letter_AMPI or the field ReqReceived falls between the specified date range, EXCEPT as below.
However there are cases where first there is a date for Letter_AMPI and then a few weeks letter, we get a special request for the same case which is the ReqReceived date. So for example we may get a case which has an Letter_AMPI date of 01/01/2014 (not in the date range), but a ReqReceived date of 05/10/2014 (in the date range). So I need to be able to eliminate this record because if the Letter_AMPI does not fall in the date range, it should not appear in the results.
I know that it does not work because of the OR but I need the OR to pick up the other records.
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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#))
GROUP BY Salestran.[SKU Code/Number];
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May 23, 2013
I need to select a record with the latest (max) date along with associated values that go along with that record. However, some records have the same date. Initial query sorts by Asset_ID and Date (Desc)...A second query against the initial query then groups by Asset_ID, taking the Max Date and First Switch and Port...Results show the latest date but with a different Switch and Port
Asset_ID | Date | Switch | Port
123 23/05/2013 WAR01 GI01
123 23/05/2013 SAM01 GI02
123 20/05/2013 ROC01 GI03
123 21/05/2013 CHR01 GI04
e.g I get 23/05/2013 with ROC01 | GI03...I have tried doing this as a nested query but get similar results.
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Jun 2, 2013
I'm doing a subquery to select the top 5 of products for each supplier. The selection needs to be done randomly on the products for each supplier. For this I have made the following query (based on Allen Browne's example):
SELECT tblProducts_temp.SupplierID, tblProducts_temp.GTIN
FROM tblProducts_temp
GROUP BY tblProducts_temp.SupplierID, tblProducts_temp.GTIN
HAVING (((tblProducts_temp.GTIN) In (SELECT TOP 5 Dupe.GTIN
FROM tblProducts_temp AS Dupe
WHERE Dupe.SupplierID = tblProducts_temp.SupplierID
ORDER BY RND(Dupe.GTIN) DESC)))
ORDER BY tblProducts_temp.SupplierID, tblProducts_temp.GTIN;
The query returns a random number of products, but not a top 5. So for supplier X one time 3 products and the next time for supplier X 7 products.The query without the RND function, so just the top 5 works fine:
SELECT tblProducts_temp.SupplierID, tblProducts_temp.GTIN
FROM tblProducts_temp
GROUP BY tblProducts_temp.SupplierID, tblProducts_temp.GTIN
HAVING (((tblProducts_temp.GTIN) In (SELECT TOP 5 Dupe.GTIN
FROM tblProducts_temp AS Dupe
WHERE Dupe.SupplierID = tblProducts_temp.SupplierID
ORDER BY Dupe.GTIN DESC)))
ORDER BY tblProducts_temp.SupplierID, tblProducts_temp.GTIN;
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Feb 27, 2014
How to DELETE rows in one table that have a field value that matches a field value from another table? Tried these but sytax errors:
DELETE * FROM tmpBankDebitsMinusJE
WHERE tmpBankDebitsMinusJE.ConcatenateBankDebits IN
(SELECT tmpJournalEntryChangeOrders.Concatenate);
DELETE FROM tmpBankDebitsMinusJE
WHERE ConcatenateBankDebits IN
(SELECT Concatenate IN tmpJournalEntryChangeOrders);
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Sep 1, 2013
At most one record can be returned by this subquery. (Error 3354)
This is my SQL:
SELECT Students.[Student ID], Students.[Student Name]
FROM Students
WHERE (((Students.[Student ID])=(SELECT [Student ID]
FROM [Student_Sports]
WHERE [Sporting Team] = [Forms]![SV_Teams]![txtTeam])));
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Jan 5, 2014
I have a race league, I want to select the top 10 point scores for each member.
I have read the Allen Browne article (and many others) and tried many variations on his code but cannot get this working.
I face two issues
- The ORDER by clause has no effect, points are not sorted with largest first
- Access being unable to differentiate between scores with the same value and returning additional records. I have added an "Event" field to make the record unique, but this does not seem to work.
Query code is
SELECT qLeague.Member, qLeague.Event, qLeague.Points
FROM qLeague
WHERE qLeague.Points IN
(SELECT TOP 10 Points
FROM qLeague AS Dupe
WHERE Dupe.Points= qLeague.Points
ORDER BY Dupe.Member, Dupe.Points DESC
)
ORDER BY qLeague.Member ASC, qLeague.Points;
This returns more than 10 results per member:
Member Event Points
Alex Peters SDMC North Weald Sprint 3
Alex Peters HCAAC Debden May 3
Alex Peters GB/Harrow TAMS NW Sprint 4
Alex Peters HCAAC Debden Sprint 5
Alex Peters Llys y Fran Hillclimb 6
etc ....
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May 7, 2014
I have a table of accounts and a table of rates. There is a one-to-many relationship between them (i.e. each account can have multiple rates, each with their own - unique - effective date)
I'm trying to build a query which will show me all of the accounts in the accounts table and the most recent rate (based on the effective date) for each of those accounts.
This is as far as I've gotten with the SQL :
Code:
SELECT [tblAccounts].[AccountID], [tblAccounts].[AccountNumber], [tblAccounts].[AccountName], [LatestRate].[IntRate], [LatestRate].[EffectiveDate]
FROM [tblAccounts]
LEFT JOIN
(SELECT TOP 1 [tblRates].[AccountID], [tblRates].[IntRate], [tblRates].[EffectiveDate]
FROM [tblRates]
ORDER BY [tblRates].[EffectiveDate] DESC) AS LatestRate
ON [tblAccounts].[AccountID] = [LatestRate].[AccountID]
But this can't work because the [LatestRate] subquery can only ever return one record (i.e. the most recent rate across all of the accounts)
I need the most recent rate for each of the accounts in the main query
(FYI - I use an outer join as it is possible for no rate to be available in the rates table for a given account, in which case I want to return the null value rather than omit the account from the resulting dataset...)
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May 27, 2014
I've created the following but it keeps coming up with the error message You tried to execute a query that does not include the specified expression 'ICE Team' as part of an aggregate function.
SELECT ztSub.[Master Sheet].[ICE Team], ztSub.[date], Count(ztSub.[Count])
FROM (SELECT [Master Sheet].[ICE Team],[Master Sheet].[Visit Date (planned for)] AS [date],Count([Master Sheet]![Visit Date (planned for)]) AS [Count]
FROM [Master Sheet]
UNION
SELECT [Master Sheet].[ICE Team],[Master Sheet].[Date retasked to?] AS [date], Count ([Master Sheet]![Date retasked to?]) AS [Count]
FROM [Master Sheet] ) AS ztSub
GROUP BY ztSub.[Master Sheet].[ICE Team];
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Jun 29, 2014
How can i make a query which shows the most used data in a field, i saw how i can show the biggest or smallest but i didn't see how many times is each data used in a field.
My field is for years, and i wanna see each year and how many times it is used.
Is this possible to do?
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Jun 3, 2015
I have a database about certain accounting datas from week by week and it's growing. I should make a Crosstab query for see the amounts weekly, it's will be exported to an excel workbook, wich have macro's(this is the problem, because the exported field will be bigger week by week). The difficulty of this query is the future weeks. I want to see all of the weeks in the columns. I made a table wich contains the weeks(Hetek_1.CW) wich I want to see, and the source is also contains the items accounting weeks.
Code:
TRANSFORM Sum(CWall_hetekkel.[Knyv# ssz# kltsg]) AS [SumOfKnyv# ssz# kltsg]
SELECT CWall_hetekkel.[Ktgh# kdja], Oka.Oka
FROM Oka RIGHT JOIN CWall_hetekkel ON Oka.Oka = CWall_hetekkel.Oka
WHERE (((CWall_hetekkel.[Ktgh# kdja])=1250 Or (CWall_hetekkel.[Ktgh# kdja])=1251 Or (CWall_hetekkel.[Ktgh# kdja])=1252 Or (CWall_hetekkel.[Ktgh# kdja])=1253))
GROUP BY CWall_hetekkel.[Ktgh# kdja], Oka.Oka
PIVOT CWall_hetekkel.CW;
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Apr 25, 2014
I have parameters set in a query. This query generates a report. I want to have the parameter field the user enters show in the report. Example: I have Region set up as a parameter. The criteria in the query is Like "*" & [Region] & "*" The problem I'm having is in the report it only returns what the user enters in the parameter prompt.
For Example: If I type south it only shows south rather than south east or south central (which is the whole field), etc. on the report. It shows in the table generated by the query but not on the report. If I leave the parameter prompt blank it brings back all the records like it should but again leaves the "region" field on the report blank.
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Oct 25, 2014
The programmer who we had used is not available and I would like to see the Unfiltered Details of the field
Code was : =DSum("Deposit_Amount","c_Deposit_Slip_Lines","Can celed=False and c_Deposit_Slip_Header_ID=" & [ID])
I want to see the Deposit amount unfiltered
i.e.: Deposit amount $1,234.56
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Nov 20, 2014
I need to write a query that shows all records if any 'L' field starts with D. I have written this, but it's only pulling records if L1 starts with D.
SELECT Item, Description, L1, L2, L3, L4, L5, L6, L7, L8, L9, L10, L11, L12
FROM Table5
WHERE ((L1 LIKE 'D*') OR (L2 LIKE 'D*') OR (L3 LIKE 'D*') OR (L4 LIKE 'D*') OR (L5 LIKE 'D*') OR (L6 LIKE 'D*') OR (L7 LIKE 'D*') OR (L8 LIKE 'D*') OR (L9 LIKE 'D*') OR (L10 LIKE 'D*') OR (L11 LIKE 'D*') OR (L12 LIKE 'D*'));
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Sep 19, 2013
I have a simple query between two tables joined together by common fields. In my first table (Table 1 - tblLocations) I have information about a building i.e. Location Code, address and total sqft. . In my second table (Table 2 - tblAllocatedSpace), this contains details (Location Code, Room ID, SqFt assigned, etc.) of the space allocated in each building. The two tables are joined together when the “Location Code” in both table match.
In my query, I show the location detail from (Table 1 - tblLocations) and related records from (Table 2 - tblAllocatedSpace). My result looks like the following:
Location Code Sqft Address Assigned Sqft
106067 1,000 600 March Rd 10
106067 1,000 600 March Rd 15
106067 1,000 600 March Rd 12
106067 1,000 600 March Rd 20
The location code, Address and Sqft is rebated each time a space is assigned in (Table 2 – tblAllocatedSpace). When a build a report and need to sum the location Sqft, the number is multiplied by the number of related records in (Table 2 – tblAllocatedSpace). In this example by building total space is 4,000 sqft when I only it to show 1,000.
How do I set to only show the location code and sqft once?
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Sep 4, 2014
I am looking to get a query to show my list of customers "Grouped By" [CustomerName], that show only the single [CurrentBalance] field for each customer based on the "Last or Highest" [RecordID].
Also, each customer can have up to 4 different [StockType]'s but at least 1 [StockType].So my results would look like this:
[CustomerName] - [StockType] - [CurrentBalance]
Customer#1 StockType#1 5
Customer#1 StockType#2 4
Customer#2 StockType#1 5
Customer#3 StockType#1 5
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Mar 2, 2014
I am just querying a single table, no relationship involved with another table. As you can see form the attached jpeg, the ZIP field in some cases is empty. I would run a search using Is NULL but the field is NOT numerical. It's a long story but I had to make this field a TEXT field. Basically, what statement do I have to insert in the criteria field to just pull up the EMPTY ZIP fields?
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Jul 9, 2007
hello,
another problem that I have is as follows:
I have 2 txtBoxes and a button (txtA, txtB, btn). When opening the form I fill in txtA and txtB. Now when clicking on the button "btn" (OnClick event), the program is supposed to compare the values in the 2 txtboxes. If they are equal (txtA=txtB), then I have to do something which is not relevant to my question. In the code I type:
if (Me.txtA.Value = Me.txtB.Value) then
' DO WHATEVER
End if
and it does not even go through the conditional statement if to do whatever I want the program to do inside the if. I would really appreciate anyone's help.
Thank you very much
PS: By the way, thank you boblarson and rainman89 for the past question, both solutions worked, I used boblarson's but I have to click on the form when it's opened in order for the changes in the table to take effect.
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Sep 13, 2007
Hello guys & gals on here.
I've been struggeling with this problem for a couple of days now and finally decided to post here and kindly ask for assistance. I've got a pretty strong OO background, but haven't worked with databases much...
I'm trying to set up a small client database for my company. The client companies have staff members (StaffClients). Client staff can attend Events and work on Projects, which I've managed via junction tables. Our own Staff can also attend Events and work on Projects.
I've uploaded my first draft of tables and relationships here:
http://img514.imageshack.us/img514/3937/snapjl9.jpg
(sorry for the blurred bits)
Now I think I've done a fairly good job in normalising the tables, but one thing that I keep stumbling across is that I need two almost identical tables: one for our Staff and one for StaffClients.
They are subtly different, e.g. StaffClients have some extra attributes, such as JobTitle, Department and one StaffClient can be the assistant of another StaffClient (also done via a junction table). The other difference is that client staff can have different roles in a project (MainContact or Assistant) compared to our own staff (Manager or TeamMember).
As a result of these differences I have set up separate junction tables for both Staff and StaffClients, but are obviously very similar.
My question is: Is that structure sound? Or can I simplify it somehow before setting up the forms for the data entry?
Your input is kindly appreciated!!
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Sep 25, 2007
Hello,
I have a problem with one of my tables and don't know where to start to fix it. This is where I stand: I have a table with 5 columns, there is no single primary key. I have duplicate entries of 4 of the 5 columns and a count number as the last column. I need to eliminate the duplicates of the combination of the 4 columns but add the count of the duplicates. Let me illustrate for you to understand better:
this is the original table:
col1 col2 col3 col4 col5
A B C D 1
A B C D 5
A B C D 2
W X Y Z 3
W X Y Z 5
W X Y Z 4
I need to obtain this in a new table:
col1 col2 col3 col4 col5
A B C D 8
W X Y Z 12
Oh, and keep in mind that the original table has almost 6 million rows that will probably get reduced to about 500 000 after this process.
Any help would be appreciated. Thanks
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Apr 14, 2008
Hello All, I am looking for any advice on the following dilemma. I have a table with new monetary transactions that come in every day. I would like to have the transactions(one debit and one credit) that net to zero eliminated from the table automatically. What I was thinking was to have an abs amount column added and run the duplicates query as a delete query based on this column, but that would not only eliminate the amounts that net to zero...but similar debit and credit amounts. Does anyone have any thoughts on the most efficient way to do this? Im sure the answer is staring at me in the face, but I cant get my head around it. Thanks in advance!
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