Subqueries/joins/SQL
May 12, 2005
I have a form with a drop down menu of people to filter a report of projects with the managers and up to 3 assistant managers. When I choose someone from the dropdown menu, I want all of their projects to come up on the report. Currently, only the projects that person is managing come up, not the ones they are assistant managing.
In my query that is powering this report, I have joined the manager_id number in table A to an id_num field in table B. To make the assistant managers come up in the report, I need to join the assist1_id, assist 2_id, and assist3_id to id_num also. When I join assist1_id to id_num, I get the following error:
The SQL statement couldn't be executed because it contains ambiguous outer joins. To force one of the joins to be performed first, create a separate query that performs the first join and then include that query in the SQL statement.
The way I would like to fix this problem is by creating subqueries in the SQL view, but I don’t know how to code it. If you know how or if you know a better way of doing this, please help! :)
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Jul 15, 2005
How many subqueries can I put into one SQL statement? I'm trying to run a query that has two subqueries, but it's not working. It works when I create and reference one of the queries separately, but when I put them directly into the statement as subqueries, it gives me a syntax error. It would really save loads of time to have this in one statement. Can someone tell me what I'm doing wrong with this query or tell me if this is possible to use the AS identifier more than once in a query?
qryTwo: WORKS!
SELECT tblEntityDetail.fldEntityID, tblEntityDetail.fldDetailID, tblEntityDetail.fldValue, tblEntityDetail.fldDate
FROM tblEntityDetail INNER JOIN [SELECT tblEntityDetail.fldEntityID, tblEntityDetail.fldDetailID, Max(tblEntityDetail.fldDate) AS MaxOffldDate, tblEntity.fldInactive, tblEntity.fldTypeID
FROM tblEntity LEFT JOIN tblEntityDetail ON tblEntity.fldEntityID = tblEntityDetail.fldEntityID
GROUP BY tblEntityDetail.fldEntityID, tblEntityDetail.fldDetailID, tblEntity.fldInactive, tblEntity.fldTypeID
HAVING (((tblEntity.fldInactive)=False) AND ((tblEntity.fldTypeID)=2))]. AS qryOne ON (tblEntityDetail.fldDate = qryOne.MaxOffldDate) AND (tblEntityDetail.fldDetailID = qryOne.fldDetailID) AND (tblEntityDetail.fldEntityID = qryOne.fldEntityID);
qryThree with separate reference to qryTwo: WORKS!
SELECT qryTwo.fldEntityID
FROM tblDetail INNER JOIN qryTwo ON tblDetail.fldDetailID = qryTwo.fldDetailID
GROUP BY qryTwo.fldEntityID
qryThree without separate reference to qryTwo: DOESN'T WORK!
SELECT qryTwo.fldEntityID
FROM tblDetail INNER JOIN [SELECT tblEntityDetail.fldEntityID, tblEntityDetail.fldDetailID, tblEntityDetail.fldValue, tblEntityDetail.fldDate
FROM tblEntityDetail INNER JOIN [SELECT tblEntityDetail.fldEntityID, tblEntityDetail.fldDetailID, Max(tblEntityDetail.fldDate) AS MaxOffldDate, tblEntity.fldInactive, tblEntity.fldTypeID
FROM tblEntity LEFT JOIN tblEntityDetail ON tblEntity.fldEntityID = tblEntityDetail.fldEntityID
GROUP BY tblEntityDetail.fldEntityID, tblEntityDetail.fldDetailID, tblEntity.fldInactive, tblEntity.fldTypeID
HAVING (((tblEntity.fldInactive)=False) AND ((tblEntity.fldTypeID)=2))]. AS qryOne ON (tblEntityDetail.fldDate = qryOne.MaxOffldDate) AND (tblEntityDetail.fldDetailID = qryOne.fldDetailID) AND (tblEntityDetail.fldEntityID = qryOne.fldEntityID)]. AS qryTwo ON tblDetail.fldDetailID = qryTwo.fldDetailID
GROUP BY qryTwo.fldEntityID
Hopefully I am wording this correctly??? If anyone can help me figure this out, I would greatly appreciate it. Thanks!!
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Mar 24, 2006
Hi, I hope someone can help me out...
I've made a bunch of queries to get the data I need out of my table, they build on each other and I find that my date query is used twice. In date query I prompt for the date, when I run the percent query I get prompted twice.
How can I set this up to only prompt the user once for the date?
Here is roughly how my queries are dependent on each other
'percent query'
/
'Average query' 'date query'
/
'subtract query' 'record count query'
/
'sum query' 'date query'
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Oct 5, 2006
Hello,
I am having a problem getting the expected results from a SQL subquery. The point of the query is to return all users and user titles that have not been entered into the database for the current month (not in tblHours). Some users have 2 titles and some just one title. Each month we enter hours worked per title so we can track labor progress. The problem lies w/ the individuals w/ 2 titles. The SQL only keys on the user id, but I need to return both user id and title. The variables called iMonth and iYear are passed from the form and the query is executed via a command button. qryTitlesPerUser contains each users title, name, and user id.
Here is the query:
strSQL = "SELECT qryTitlesPerUser.Name, qryTitlesPerUser.title FROM qryTitlesPerUser "
strSQL = strSQL & "WHERE qryTitlesPerUser.UserID AND qryTitlesPerUser.title NOT IN "
strSQL = strSQL & "(SELECT tblHours.UserID, tblHours.title FROM tblHours "
strSQL = strSQL & "WHERE tblHours.month = " & iMonth & " AND tblHours.year = " & iYear & ") "
strSQL = strSQL & "ORDER BY qryTitlesPerUser.Name"
Any help would be greatly appreciated.
Ken
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Mar 8, 2008
I've looked at so many options for writing this query that I can't see the forest for the trees and hoping you kind folks will point me in the right direction.
I have a table called services that includes:
service_id
prop_id
service_year (ie: 2007, 2008)
service_date (ie: 3/3/08)
service_id is a unique ID for each service which relates to data I will need to pull from another table.
prop_id relates to a property ID in another table, not unique as multiple services against one property.
The problem that I have is that each prop_id can have more than one service_date for the same service_year. I need to be able to find the latest service_date on a prop_id and its associated service_year and service_id.
Any pointers would be greatly appreciated. BTW, using this in Access 2003 & 2007
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Aug 14, 2007
Hi again,
I just restructured my DB and I was wondering if anyone can give me some advice on whether or not my joins/relations are correct. I left some joins/relations out because I wasn't sure what relation I should use.
Any Advice will be greatly appreciated
18418
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Dec 19, 2006
Short version of question:
My research has shown that Access will not allow edits through a form that 1) has subqueries in its SELECT clause, or 2) uses aggregation such as First(). Is there any tricky way around this?
Long version of question:
I have a database form that shows an overview of orders for products (it's based on a query that pulls all current orders from the big table). I would like to handle both of these on each row:
Show where we built it last time, and
Allow the user to select where it will be built this time.
The problem is that I cannot figure a way to change the form/query such that it doesn't aggregate to find out where we built it last time, or doesn't rely on subqueries that do just that.
But I feel like there should be some way to do it--since each row displayed does rely on one and only one record in the complete table of orders. Which obviously is the record I want to update.
Is there something I can do that will accomplish this? I really do not want to have to make the user open up another form to see last time or choose this time.
Thanks in advance!!
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Apr 17, 2014
Some essential background first. I have a Balances table which records balances by date. I also have an Issues table where problems are logged. There is a one-to-many relationship between Balances and Issues (i.e. each Balance can have multiple Issues). I also have a Comments table where updates for each Issue are recorded. There is again a one-to-many relationship between Issues and Comments (i.e. each Issue can have multiple Comments)
There are two key date fields in the Issues table :FlagDate (the date an Issue was flagged by a user for investigation)
ResolveDate (the date said investigation was brought to a conclusion)
There is also a date field in the Comments table :UpdatedWhen (the date any given comment was added)
So the basic flow is that an Issue gets flagged (FlagDate), then various comments are added (multiple UpdatedWhen's) and finally the Issue gets resolved (ResolveDate)
I need to incorporate a trend graph which will show the counts ofNew (i.e. new issues flagged as of each day) Cleared (i.e. issues resolved each day)
Updated (i.e. issues not yet resolved but updated each day)
Unchanged (i.e. issues not yet resolved and not updated each day)
Outstanding (i.e. all unresolved issues as of each day)
This is the SQL I've put together to get that table of information on which to base my chart :
Code:
SELECT [tblBalances].[BalanceDate] AS AsOfDate,
(SELECT COUNT([tblIssues].[IssueID])
FROM [tblIssues]
WHERE [tblIssues].[Flag] = True
AND [tblIssues].[FlagDate] = [tblBalances].[BalanceDate]) AS New,
[Code] .....
The subqueries for 'New', 'Cleared' and 'Outstanding' work perfectly; the resultant dataset gives me one record for each date in the Balance table and correctly counts the number of issues falling into each of those buckets.
The problem I have is with the 'Updated' bucket. If a flagged issue happens to be updated twice on the same day (which is perfectly acceptable), it counts this twice as well. I don't want this as I just want to know how many issues were updated on any given day - not how many updates there were.
I tried using COUNT(DISTINCT) in the 'Updated' subquery but it gives me a syntax error - on further research, I don't think it's possible to use the DISTINCT keyword in a COUNT subquery (at least not easily)
I also tried grouping by IssueID within that 'Updated' subquery but it still gives me the duplicate count within the same IssueID (and returns nulls rather than zeroes for those days where no updates occured)
I think I need to add a subquery within the subquery () to only return the latest comment as of the date in question - something along the lines of :
Code:
(SELECT TOP 1 [tblComments].[UpdatedWhen]
FROM [tblComments]
WHERE [tblComments].[IssueID] = [tblIssues].[IssueID]
AND DateValue([tblComments].[UpdatedWhen]) <= [tblBalances].[BalanceDate]
ORDER BY [tblComments].[UpdatedWhen] DESC) AS UpdatedWhen
But how to do this, nor if it is even feasible in Access to begin with.
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Feb 5, 2008
Hi there,
Consider 2 simple tables
Name ID Pet
A 00 dog
B 11 cat
C 22 hamster
Name ID hasJob
A 00 no
B 11 yes
D 33 yes
how do I make a join to get this table?
Name ID Pet hasJob
A 00 dog no
B 11 cat yes
C 22 hamster --
D 33 -- yes
Help much appreciated.. thank you
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Oct 16, 2006
Hey everyone! I just have a relatively quick question.
Situation:
I have a database where i have 2 tables. One table has items in one column, and the width, length, and height of the item. Another table has the exact same fields, except the only items are ones that need updated as far as their dimensions. The fields with those items include their new dimensions. How can I create a query to pull down all of the items with the correct dimensions?
Any help is greatly appreciated!
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Apr 15, 2008
I've got a table with a self join which represents a tree structure that can have variable depth.
I want to get a spreadsheet view of this for project review meetings. I can do a bunch of nested queries until I get all the branches but i would like something a little more dynamic, i.e. something that will automatically show the spreadsheet view of all branches no matter the depth of the tree.
So anyone got any suggestions on how to handle this?
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Apr 29, 2008
Hi Kids i'm a Newbie so be nice!
Only been using Access for a little over 6 months. It's an ongoing struggle but a worthy string to my bow.
I have been using a simple join to filter out matching fields from a bigger table that exist in a smaller table. If you like i create the smaller table around what i need to see from the bigger one. I hope that makes sense.
So what i want to achieve now is what i'm calling a "compliment join". This is where i use the smaller table to filter from the bigger table but I am left with everything but what was in the smaller table.
Any ideas...??
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May 9, 2007
Hi All,
Can anyone help me. I have a database table called orders. This contains and order status id. In a separate table i have the order status id and the what the id means i.e delivered, awaiting payment etc.
I need a record set that returns all the fields from the order table and the actual order status not the order ID.
I know i need to use a inner join but just can get it right.
Can anyone help me with this.
This is what i have but it return nothing:
Code:SELECT a.*, c.OrderStatusFROM Orders AS a INNER JOIN OrderStatuses AS c ON a.OrderStatusID = c.OrderStatusIDORDER BY OrderDate desc
EDIT:
Actually that is right and it does what, stupid me, frazzled brain at this time of night.
What i actually meant was how can i also pull the customers name from the database table Customer, based on the orderID?
Thanks in advance
Tom
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Nov 9, 2005
I would like to know the difference between these two concepts.
Would anyone care to explain it to me?
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Dec 5, 2005
Is there a limit to the number of joins allowed in a query?
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Nov 1, 2006
Hi there,
if i have a table with columns:
Teacher ID1 | Teacher Comment1 | Teacher ID2 | Teacher Comment 2 |
i also have another table that links the teacher ID with their names called [Staff Profiles]
how do i create a query that returns the names of both teacher 1 & 2. i have tried:
SELECT *
FROM [Subject Assessment] INNER JOIN [Staff Profiles] ON [Subject Assessment].[Teacher ID1]=[Staff Profiles].[Teacher ID]) INNER JOIN [Staff Profiles] ON [Subject Assessment].[Teacher ID2]=[Staff Profiles].[Teacher ID];
This throws an error. I have tried Aliasing but this also throws an error.
don't know whether this makes a difference, but the table which i gave was a join in the first place.....
i.e. teacherID1 | Teacher Comment1 is the tutor report of which there is one per student
teacher ID2 | teacher Comment2 is the subject report of which there are many per student
thanks in advance
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Feb 4, 2007
hi
i have 4 tables: tbEmploye, tbCirculaire, , tbCategorie, lienCirculaireEmploye
tbCategorie (every circulaire have a category)
-cirIdCategorie
-cirCategorie
tbEmploye
- empID
- empPrenom
- empNom
- empNumeroEmploye
- empMotPasse
tbCirculaire
- cirID
- cirIdCategorie
- cirNumero
- cirDescription
- cirDate
- cirNomFichier
lienCirculaireEmploye (link circulaire to employe
- cirNumero
- empNumeroEmploye
- dateLecture
SELECT tbCirculaire.cirNumero,
tbCategorie.cirCategorie,
tbCirculaire.cirDescription,
tbCirculaire.cirNomFichier,
tbCirculaire.cirDate,
tbEmploye.empNumeroEmploye,
tbEmploye.empPrenom ,
tbEmploye.empNom,
lienCirculaireEmploye.dateLecture
FROM (tbCirculaire INNER JOIN lienCirculaireEmploye ON tbCirculaire.cirNumero = lienCirculaireEmploye.cirNumero)
INNER JOIN tbEmploye ON lienCirculaireEmploye.empNumeroEmploye = tbEmploye.empNumeroEmploye
INNER JOIN tbCategorie ON tbCirculaire.cirIdCategorie = tbCategorie.cirIdCategorie
WHERE tbCategorie.cirIdCategorie IN ( 1,2 )
with this query, i get error: 3075
Syntax error (missin operator) in query expression
lienCirculaireEmploye ON tbCirculaire.cirNumero = lienCirculaireEmploye.cirNumero)
INNER JOIN tbEmploye ON lienCirculaireEmploye.empNumeroEmploye = tbEmploye.empNumeroEmploye
INNER JOIN tbCategorie ON tbCirculaire.cirIdCategorie = tbCategorie.cirIdCategorie
any idea?
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May 29, 2007
Wierd Join needed...Here's my problem. it's been bothering for a bit...I have 2 tables, one with a date, and the 2nd table with 2 dates. I need to only pull the records from the 2nd table where the date in the first table come between them.TABLE 1DATEJOB#EMPLOYEE#TABLE2 JOB#EMPLOYEE#STARTDATEENDDATEThe query should take every line from TABLE1 and ONLY the lines from TABLE 2 that qualify.
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Jul 24, 2007
Hello,
I have the following code for a multiple join:
INSERT INTO [AppendAllFields]SELECT [TreatyList].[Treaty] AS [Treaty],[MLAC 42 Treaty Xref ER].[tai treaty] AS [TreatyType],[txn 01/04].[Policy_Number]
(and more other fields from [txn 01/04] table)
FROM [txn 01/04] INNER JOIN [MLAC 42 Treaty Xref ER] ON TRIM([txn 01/04].[Policy_Number]) = TRIM([MLAC 42 Treaty Xref ER].[Polnum])
INNER JOIN [TreatyList] ON TRIM([MLAC 42 Treaty Xref ER].[tai treaty]) = TRIM([TreatyList].[TreatyNo]);
Basically, the txn 01/04 table has a corresponding Polnum field in the MLAC 42 table, and MLAC 42 table has a tai treaty field, which corresponds to TreatyNo in TreatyList table.
However, when I tried to run this, I got an Syntax error.
Could anyone please help?
Thanks!
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Aug 31, 2007
Hi,
I have 3 tables.
From table 1, I join fields A, B, and C to fields A, B, and C on table 2. From Table 2, I join Fields 1 and 2 to Table 3. All the joins are Join 1.
When I pulled (Queried) fields D, E, and F from Table 1, field D from Table 2, and field D from table 3, I have a sum of $1000 under field (column) E from Table 1.
The second time I pulled data, I added fields A and B from table 1 to the query. However, I get a total of $1500 from the same column. i.e Field E from Table 1. I can understand that there will be more rows to provide further data breakdown, but I could not understnad why the total change.
Please help.
Thanks.
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Sep 4, 2007
Hi all,
Simple problem, but my access and sql skills are very limited.
I have two tables. One containing a group of frequent customers with a column called 'member status'. Another table containing a group of non-customers. The addresses in both tables have been matched using group1 software.
I would like to create a query that shows me all the customers with 'member status' = 'A' and all the non-customers who live at the same address.
When i run the query, everybody comes up as 'member status'=A. I think this is because there is no 'member status' field in the non-customers table, and i have failed to make the appropriate join or parameters. Is there a way to design a query that will show 'member status' for those who have it, and will display a null for those who do not?
Any help is appreciated thank you!
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Dec 4, 2007
Good day all
I have a simple query linking two tables using the primary keys from each. The problem is that every time I go into design mode of the form that uses the query to populate a list box I get a Data Type Mismatch error and when I look at the query, Access has changed the join from the Pk in one table to the field after the PK in the other field. I have attached an image to show the change. Note that the join should be from the first fields on each table. I am really stuck with this guys, it is gettin me down and preventing me from developing the database further and my boss is on my case. Can anyone please help me? I have checked all the table relationships and they are fine. Thank you.
Gareth:(
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Jul 26, 2005
Attached is a pdf of the query window showing the relationships and table structure; (sorry for the quality) the linkage is also permanent at the relationship window. I created a form (columnar) of Rooms; loaded a subform (columnar) of the projects; and then loaded the students (tabular) as a subform on the projects subform. The data entry is flawless; tabs through each field and form to form in sequence.
After entering several rooms data I tested it at the query level by loading the three tables: rooms, projects, and students, and the permanentely established linkage with junctions came in automatically. I thought I was home free--but when I run the query, I get zero records.
When I attempt various joins, thinking this will yeild all records from the many tables and their match, I get "ambiguous outer joins" and it says to run a separate query and add it to the SQL Statement?
Thanks for any help,
Almost funtional in Ann Arbor........
Oh, and thanks Pat Hartman for the tip on linkage -- although I may have screwed it up anyway.
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Jan 20, 2006
I have two tables...'Suppliers' and 'Despatches'.
I'd like to create a query that shows all the suppliers that are in the Suppliers table as well as the last date of despatch (if any). Thus, this would be the maximum date that relate to that supplier ID. However, despatches that have a quantity of 0 should be excluded.
Currently I have the following, it's working fine but suppliers who doesn't have a corresponding despatch are not being listed. I need the report to list all the suppliers.
SELECT [Suppliers].[fldSupplierFullName], [Suppliers].[ID], Max([Despatches].[DespDate]) AS MaxOfDespDate
FROM Despatches LEFT JOIN Suppliers ON [Despatches].[SupplierRef]=[Suppliers].[ID]
WHERE ((([Despatches].[QtyLoaded])<>0))
GROUP BY [Suppliers].[fldSupplierFullName], [Suppliers].[ID];
Can anyone give me any direction?
Thanks :)
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May 3, 2006
I am trying to set up a file compare process. I load the two files into two "matching" tables (there is a key field). I have a series of queries which find any differences in the various fields and displays them. My problem is that one field (Field4 - a tran code) is coded 1,2,3 in one file and A,B,C in the other. I have set up a third translation table with two columns, each row showing the matching codes (1/A, 2/B, 3/C, etc). I want to find corresponding rows in FILE1 and FILE2 (matched on KEY) where tran codes (Field4) do not match (ie a "1" in File1 but NOT a "A" in FILE2).
I have not been able to get the two inner joins to work. Can some one help.
This is my last attempt:
FILE1: KEY-Field1-Field2-Field3-Field4
FILE2: KEY-Field1-Field2-Field3-Field4
(Field4 is the code that needs to be translated)
FILE3/numeric/alphabetic
1 A
2 B
3 C
4 D
SELECT FILE1.KEY,FILE1.Field4, FILE2.Field4
FROM
FILE1 INNER JOIN FILE2 ON FILE1.key = FILE2.key
INNER JOIN [FILE3] ON (FILE1.Field4 = FILE3.alphabetic)
WHERE FILE2.Field4 <> FILE3.numeric.
Hope this makes sense.
Mac
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Jun 9, 2006
Hi,
I have two tables:
tblListeners
-----------
ID (PK)
FirstName
LastName
etc
tblReference
------------
ID (PK)
ListenerID
ReferenceTypeID (FK)
ReferenceDate
etc
(Btw I am aware of the unconventional naming of the PKs but I'm running the B/E on SharePoint so I have no choice!)
So listeners have to periodically do a reference. What i want is a query that tracks if listeners either have not done a reference EVER or haven't done one for a while, but broken down by the FK in tblReference.
Here is my reasonably simple SQL so far:
SELECT tblListeners.ID AS ListenerID, tblListeners.FirstName, tblListeners.LastName, tblReference.ReferenceTypeID, tblReference.ReferenceDate
FROM tblListeners LEFT JOIN tblReference ON tblListeners.ID = tblReference.ListenerID
WHERE (((tblReference.ListenerID) Is Null) AND ((tblReference.ReferenceDate) Is Null)) OR (((tblReference.ReferenceDate)<DateAdd("m",-6,Date())))
ORDER BY tblListeners.FirstName, tblListeners.LastName;
In the current query the results ignore the FK so the so a listener will be missing if they have done one type of reference - i want them to be there (or not be there) for each type of reference. Hope that makes sense!
Now i know people may suggest a crosstab for this but: a) I don't get on with them and wouldn't know how to implement it and b) this will need to be in a report and I don't want to venture down the 'dynamic crosstab report' path!
Any ideas?
Cheers,
Bobadopolis
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