Problem With Double Join
Dec 14, 2006
I've done double and even triple joins before, but this isn't working for me, probably because I'm using a SELECT statement instead of a table. Here's the basic (working) query:
SELECT Employee.*, NewPositionID AS [Position], NewStoreID AS [Store]
FROM Employee
LEFT JOIN (
[Position Change] INNER JOIN [Store Change]
ON [Position Change].EmployeeID=[Store Change].EmployeeID
) ON Employee.EID=[Position Change].EmployeeID;
Now that works perfectly fine, but the problem is I only want the employee to join with the most recent position and store change. So I tried something like this:
SELECT Employee.*, NewPositionID AS [Position], NewStoreID AS [Store]
FROM Employee
LEFT JOIN (
(SELECT TOP 1 * FROM [Position Change] ORDER BY EffectiveDate Desc)
INNER JOIN (SELECT TOP 1 * FROM [Store Change] ORDER BY EffectiveDate Desc)
ON [Position Change].EmployeeID=[Store Change].EmployeeID
) ON Employee.EID=[Position Change].EmployeeID;
It tells me "Syntax error in JOIN operation" and it highlights the first occurence of "[Position Change]" (the part in bold). Using the 1st query I don't see how I can filter out the correct records.
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Oct 21, 2005
Hi
I'm trying to do something really simple here but I'm getting confused with the correct syntax.
I am trying to retrieve a list of data from 1 table (tblUsers) and 2 queries (spPFApprovedThreads, spPFApprovedEntries)
From spPFApprovedThreads I would like to retrieve 'Thread' and 'CreationDate', from spPFApprovedEntries I would like to retrieve the a Count of 'EntryID' for every 'ThreadID' and from tblUsers I would like to retrieve 'Username'.
Where tblUsers.UserID = spPFApprovedThreads.CreatorID and spPFApprovedEntries.ThreadID = spPFApprovedThreads.ThreadID
I have managed to do the following:
SELECT t.ThreadID, t.Thread,t.CreationDate, count(e.EntryID)
FROM spPFApprovedThreads AS t INNER JOIN spPFApprovedEntries AS e ON e.ThreadID=t.ThreadID
GROUP BY t.ThreadID
ORDER BY t.ThreadID;
but how do I add the Username from the tblUsers?
Many thanks for any time.
Shaun
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Nov 10, 2006
I've been toiling with the issue of WHERE clauses on the "Right" side of Left Joins. I'm aware that you need to use JOIN ON......AND.... rather than JOIN ON....WHERE.... if the WHERE relates to the Right Hand table.
I've even got an example in my DB where the above works, but now am struggling to use the same theory for other tables. Therefore, I went and created two Mickey Mouse tables to test the logic but am getting an error.
I have
Table 1 with one field called Field 1 - values A, B, C
Table 2 as follows
Field 1.....Field 2.......Field 3
A.............100
C.............200..........XXX
I hoped to have a query that finds all records on Table 1 and records on Table 2 where Field 1 matches on the two tables and Field3 = XXX
My SQL is
SELECT Table1.Field1, Table2.Field1, Table2.Field2, Table2.Field3
FROM Table1 INNER JOIN Table2 ON Table1.Field1 = Table2.Field1
AND Table2.Field3="XXX";
but I get Join Expression not supported
What am I doing wrong?
Thanks
Andrew
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Nov 16, 2013
And then called this join as a symbol or variable, and then have it use to select the items from these joined tables, can this be done in Access? Here is an example of a code that I created, but it has an error message saying the FROM syntax is incorrect.
Code:
SELECT firstJOIN.trainID, firstJOIN.trainName, firstJOIN.stationID, firstJOIN.stationName, firstJOIN.distance_miles, firstJOIN.time_mins
FROM (trains INNER JOIN ((station INNER JOIN lineStation ON station.stationID = lineStation.stationID)
INNER JOIN bookingLeg ON bookingLeg.startID = station.stationID or bookingLeg.endID = station.stationID )
ON trains.trainID = bookingLeg.tid) as firstJOIN
Can Access do something similar to this, in the FROM statement I joined 4 tables, because each unique fields are in each table and I have to joined them to get those fields. I called this join firstJOIN and in the SELECT statement, I list those columns in the table by calling it firstJOIN.trainID. Can Access do something like this, but syntax it differently?
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Jan 3, 2007
I am trying to do an inner join with a left join. The only problem is, I want to inner join the table that is being joined. This is how I thought it would work below, but it doesn't work.
SELECT * FROM ((Submissions LEFT JOIN Candidates ON Submissions.`Candidate Code` = Candidates.`Candidate Code`) INNER JOIN `Type Candidate Status` ON Candidate.Status = `Type Candidate Status`.`Status ID`)
WHERE Submissions.Status <> 7 ORDER BY `School Interest` DESC;
I want to get the Candidate.Status to inner join with the `Type Candidate Status`.`Status ID`.
If you can help, thanks in advance.
Dave
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May 15, 2005
I have a realy serious problem that when I open msaccess (I have access 2003) and I'm trying to reach the database from my application, the application fails to get to the database. Aparently this happens because access is opened but isn't it supposed to allow multiple access to the database?
Anyone knows why?
Thanks in advance.
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Mar 7, 2008
Please could someone give me help on this topic, I need to slove it for coursework in Access but im having the following problem.
Im creating a database for a hotel which rents out its room obviously. The problem i have is if a guest books a room for say march 3rd until march 6th, theres currently no way in which to stop another guest booking the room for any of these dates.
I think i know how to stop double booking for the start day, but not the days inbetween if you understand.
The database has 3 tables:
Guest Info
Room info
Bookings
If anyone can help it would be greatly appreciated.
P.S the method i hope to use, is the hotel will enter the start date of a guests stay and then enter the number of nights the guest is staying for e.g. 3rd-6th of march would be input as: Begin date: 03/03/08 for:'3' nights.
Thanks for any help
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Apr 16, 2005
hi guys nice site you got here.
I need a bit of help its been over 2 years since I used access in college so have forgot most things.
I want to stop people from making double bookings at the same time on the same date.
I have the following
Booking ID
Teacher ID
Class Room ID
Date Booked
Booked Date
Start Time
End Time
so the booked date, start time and end time is what I need to look but not sure, should I index (no duplicates) for them three?
thanks for the help
I realise there are posts about bookings but more help would be great :)
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Aug 25, 2005
stuck in the middle of a project of employee payroll the following problems are for some suggestions:
if an employee is not taken off in a week and work on sundays, he's paid double OT; if he is not taken off he's not paid; i.e. he can take 4 days off in a month
how can i keep track of this in the db; can i use a table putting 7 days as fields and make it all yes/no so that user can check or uncheck the status against each employee(!); but for whole month how can i calculate
work period start from every month on 25th and ends on 24th in next month.
got tables for attendance and leave
help appreciated
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Oct 17, 2004
I am wanting to prevent a double booking. I have a form called:
frm_Booking which records an ArrivalDate and DepartureDate
and another form
frm_Building_Booking which records a BuildingID number
I want to ensure that a customer cannot book a BuildingID for an ArrivalDate and DepartureDate it it has already been booked by another cusotmer or book any on the days between.
However a customer should be able to book a BuildingID on the DepartureDate.
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Apr 6, 2006
Morning, all...
Hoping someone can help me with this. I have a form (one-side) with a bound continuous subform (many-side). I have a second unbound subform, also continuous, which is used as a reference only (no data entry) to select the record to be added to the bound subform. Is it possible to set it up so that, when the user double clicks on the pk from the unbound subform it adds that pk as a new record on the bound subform?
Thanx in advance for your help with this ;<)
Karen
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Sep 5, 2005
I have been searching the web for some examples of a double entry accounting systems made with MS Access. I havent found any that I can open... examine the tables, queries, relationships and everything else. Not that I am planning on spending a year or two building one :) But I want to know how to. So if anyone knows of any good examples please post the links for me. Thanks
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Sep 7, 2005
I'm looking for someone who knows a bit about this one... maybe done one before. I've started a DB for an accounting system, I've worked with MANY of these over the years, but from a user standpoint. Now I'm trying a shot at putting one together, just for a learning experience if nothing else. But I would like someone to take a look at the beginning structure of the DB and let me know if I am on the right track. Any input and suggestions would be helpful and appreciated. Keep in mind there is ALOT not here yet... and some loose tables for future expansion. I didn't want to get too deep into it and find out I need to make a major change. I'll post the DB.
Thanks
Curtis
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Nov 2, 2007
I want to lookup a list of employees (in a form) and by double clicking a name listed, have that name pasted into another form or Sub form to add details to it.
I want to select a number of employees and add info such as attending a training session, plus the topics covered, instructors name etc. I want to add this info once but relate it to a number of employees who attend the training???
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Nov 13, 2007
I have a string with one or more double quotes in it. How can I remove the double quotes? (I was able to remove single quotes.)
Example: Purchase "other items". (This the data in a column.)
I want to change it to Purchase other items
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Jan 14, 2008
could someone please help me, i am having a problem trying to get rid of double bookings in the attached database.
This database is for an assignment for my students, and unfortunately i had got the point now that i have got incredbily stupid and cannot see a solution.
I want to make sure that a client cannot double book an instructor and a car on a specific time or date...
Obviously i would also want to make sure that if one client has booked a specific car or instructor no other client would be able to book it, in the same time and date slot.. All lessons are 1 hour long
for some reason i have to make sure that a client can book a specific car...
This unit is being taught alongside another unit by another teacher, who does not see the complexities of the problem, and insists that this complexity is in the database, however they do not know the solution either.
I have tried creating different types of primary key combinations, but that does not work..
Any ideas or suggestions would be greatly appreciated
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May 26, 2006
Hi,
I have been asked to run a query on an existing db and output certain fields as type Double.
The fields in question are currently type Currency.
How do I change the format from Currency to Double or do I need to?
Thanks in advance
Daz....
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Dec 7, 2005
Hello All again,I am working on a form for my database this time and I have noticed something odd that I cant figure out. I have managed to make the following form (http://members.iinet.net.au/~a.beardsley/database/1.jpg) from a Staff Table, Activities Table and a Total Expense Query, all in the one form. My problem is that I only have two entrys in the activities (http://members.iinet.net.au/~a.beardsley/database/3.jpg) but I am recieving 4 entrys in the form. 2 of witch the totals do not add. (see other 2 entrys here: http://members.iinet.net.au/~a.beardsley/database/2.jpg). Does anyone know why this would be happening?
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Nov 1, 2004
I have a list of companies in a table which Is being accessed through a list box. I wanted the user to be able to double-click on the name of a company from that long list and then for that selection to show up on an adjacent shorter list box which in turn will be used for a search. How can I do this? Another option would be to drag and drop the name from on list to another.
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Jan 17, 2005
Hi,
I have a form which has a tab control on it. The form itself is based on 1 table (tblCustomers). The tab control has 2 pages.
Page 1 shows 6 fields from tblCustomers.
Page 2 of the tab control shows 2 embdedded forms. Those forms are based on queries created from tblCustomers. one shows records with a date entered into one of the fields, the other shows records that have no dates.
What I want to be able to do is when I see a company name in one of the ebedded forms (Page 2), I want to be able to double click that record and it switches me back to Page 1 and shows the the related details of whichever company I double clicked.
I have changed the double click event in the emdedded form and using the builder to create something. I also added a setfocus command as I read about that somewhere (but i have no idea what it does). Through this I managed to get it to switch from Page 2 to Page 1 when I double click, but it only ever takes me to record 1 regardless of which company i double clicked.
i may have this deisgned totally wrong so please feel free to point me in the right direction.
any ideas?
thanks in advance
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Mar 18, 2006
I cant get the comment feature to work in SQL. If I type the following...
Code:SELECT * FROM tblMembers WHERE OrderNo='xxxx' -- Finds the member
An error message is returned saying 'Syntax Error (Missing Operator)'. What am I doing wrong?
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Nov 12, 2011
i make form and insert into some fields. how make button, that you add double fields under create fields??i have these fields:
field1 field2 field3 field4 // pres button for double fields
field1 field2 field3 field4
field1 field2 field3 field4
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Mar 6, 2014
I have an file with 500.000 + lines.Each line has an ID with an amount.
For example:
ID Amount
1 2
Often the ID appears with a different amount.
I want to have a cleaned up acces file where each ID only appears once but where the amounts are add up.
For example:
ID Amount
1 2
1 4
Should be in the new file
ID Amount
1 6
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Apr 25, 2005
Hey, I tried searching for this one, but I'm not really sure what to search for.
I am running a report that is double sided. However, I do not want the start of the next group, on the same physical page. I also do not want a starting blank page (as I thought about inserting a blank page after the section).
Any way to do this?
Maybe I have to write a function or something? Depending on if the page is an even or odd number? I honestly have no idea.
Thanks for the help!
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Mar 8, 2007
Hi
I have created a database to take bookings for holiday properties but can't figure out how to stop the properties from being booked over the same period. I have a table called booking order with the fields Booking no, property no, start date and end date. On the equivilant form for a property i need to be able to stop start and end dates being entered that are between existing start and end dates already booked for that property.
Thanks for your help
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Jul 30, 2007
I'm stumped....(newbie):)
I"ve got a unbound combo box (customername) that has two events (on click); AfterUpdate and NotInList.
The AfterUpdate uses a 'me.recordsetclone' in order to display other data in controls associated with customerid/customername from the Customer table.
The NotInlist, does just that, adds a new customer name to the
list along with a new autonumber (used as customerid).
The problem is that I'm getting two entries (different autonumbers). I can't figure out what I'm doing wrong. If I remove the 'AfterUpdate' event, then I can't bring up the customer's data, since then there's no connection to the customername/customerid.
If I remove the Not in List, then there's no way to add a new customer. I reconfigured NotInList many many times and still I get 2 entries. One entry has Customer 'name only', The second entry has name, address, city and the rest of the fields as entered.
I tried setting an index (on Customer table) with CustID and CustomerID, making them unique, but still I'm getting 2 entries whenever I use the 'NotInList'..........Help Help,,
Here are these events:
Code: ( text )
Private Sub customername_AfterUpdate()
Dim rst As Object
Set rst = Me.RecordsetClone
rst.FindFirst "CustomerID=" & Me![customername]
If Not rst.NoMatch Then
Me.Bookmark = rst.Bookmark
Else
'Not found!
End If
Forms![Add or Delete Customer]![customername].Requery
End Sub
Code: ( text )
Private Sub customername_NotInList(NewData As String, Response As Integer)
Dim strSQL
Dim FirstName As String
Dim LastName As String
Dim SpacePosition As Integer
Dim lngNextID As Long
' Find the highest Cust ID in the Customers table and add 1
lngNextID = DMax("[CustID]", "Customers") + 1
custID = lngNextID
SpacePosition = InStr(NewData, " ")
If SpacePosition = 0 Then
MsgBox "Your entry requires a space to separate First and Last name." & _
vbNewLine & vbNewLine & _
"Please enter a First and Last Name or choose an entry from the list.", _
vbInformation, "Invalid Data !"
Response = acDataErrContinue
Exit Sub
End If
' Trim the data into first and last name using the space position.
FirstName = Trim(Left(NewData, SpacePosition - 1))
LastName = Trim(Mid(NewData, SpacePosition + 1))
If FirstName = "" Then
MsgBox "You have not entered details for the first name" & vbNewLine & vbNewLine & _
"Please fix entry.", vbInformation, "Invalid Data !"
Response = acDataErrContinue
Exit Sub
End If
If LastName = "" Then
MsgBox "You have not entered details for the last name" & vbNewLine & vbNewLine & _
"Please fix entry.", vbInformation, "Invalid Data !"
Response = acDataErrContinue
Exit Sub
End If
MsgBox "An account for this person does not exist....." & vbNewLine & vbNewLine & _
"Now creating new Customer Account.", vbInformation, "Unknown Customer Details....."
strSQL = "Insert Into Customers ([custID], [FirstName], [LastName]) " & _
"values ('" & custID & "','" & FirstName & "','" & LastName & "');"
'MsgBox strsql
CurrentDb.Execute strSQL, dbFailOnError
Response = acDataErrAdded
End Sub
Is there anyone that can help....thanks Shasha
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