What is wrong with my Dlookup syntax? - ms-access

I have four Tables: Artist, Album, Tracks, and Import. I am basically making my own I-Tunes, which frustrates me to use. Anyway, my issue is that many artist release albums with the same name, Greatest Hits, ect. I bring ITunes into Access via excel to my Import Table. Adding the artist is easy, and so is the Albums. I need to bring in the Tracks/Songs, but I need to update my Import Table with the new Album IDs, via using Dlookup with more than one criteria. I have tried with/without brackets, quotes, double quotes, ect. I keep getting a syntax error?
Private Sub Command88_Click()
Dim Count As Integer
Dim ArtistLookupID As Integer
Dim AlbumTitleName As String
Count = 0
With Me.Recordset
.MoveFirst
Do While Not .EOF
ArtistLookupID = Me.[Artist ID]
AlbumTitleName = Me.[Album Title]
MsgBox "" & ArtistLookupID & " " & AlbumTitleName
Dlookup("[Album ID]", "[Album Table]", "[Album Title] = AlbumTitleName AND [Artist ID] = 'ArtistLookupID'")
Count = Count + 1
.MoveNext
Loop
End With
MsgBox "records processed=" & Count
End Sub
Anybody?

Dlookup("[Album ID]", "[Album Table]", "[Album Title] = '" & AlbumTitleName & "' AND [Artist ID] = " & ArtistLookupID & "")
should work, you were including your variable names in the string i think
Edit: No quoting of the numeric ID.

DLookup returns a value or Null, so you probably have something like this in mind:
Count = Count + Abs(Not IsNull(Dlookup("[Album ID]", "[Album Table]", "[Album Title] = AlbumTitleName AND [Artist ID] = 'ArtistLookupID'")))

Related

Variable not working inside IN clause

This code is written in Excel2010 VBA and queries PostGreSQL tables
I have the following code in VBA that creates a variable that I would like to use in my SQL query, but I cannot get the SQL query to accept the VBA variable using the IN clause
This code creates the variable I want to use and works fine. It allows me to select specific cells I need to query
Dim StaffID As Range
Dim ID As Range
Dim LR As Long
Dim SelectedID As String
'Count number of rows to search
LR = Worksheets("Sheet1").Range("A" & Rows.Count).End(xlUp).Row
On Error Resume Next 'if only 1 row
'Store Data from here
Set StaffID = ThisWorkbook.Sheets("Sheet1").Range("B2:B" & LR)
'Loop through each cell in Range and look for any character in column A
'then store offset cell value using comma delimiter
For Each ID In Worksheets("Sheet1").Range("A2:A" & LR).Cells
If ID.Value > 0 Then
SelectedID = SelectedID & "," & ID.Offset(, 1).Value
End If
Next ID
'Remove first delimiter from string (,)
SelectedID = Right(SelectedID, Len(SelectedID) - 1)
OUTPUT EXAMPLE of SelectedID = 6,7,8,6452
I now want to add this to my query using the IN clause, but it just doesn't work. Does anyone have a solution or workaround.
Sheets("Sheet2").Select
Range("A1").Select
Dim rs As Recordset
Dim t As String
t = "SELECT DISTINCT s.entity_id, u.login_name, s.role " _
& "FROM staff s INNER JOIN user u ON s.entity_id=u.staff_id " _
& "WHERE u.staff_id IN (SelectedID) " _
Set rs = conn.Execute(t)
With ActiveSheet.QueryTables.Add(Connection:=rs, Destination:=Range("A1"))
.Refresh
End With
rs.Close
At the moment you're putting the string 'SelectedID' directly into your query. You'll need something like this in your VBA:
t = "SELECT DISTINCT s.entity_id, u.login_name, s.role " _
& "FROM staff s INNER JOIN user u ON s.entity_id=u.staff_id " _
& "WHERE u.staff_id IN (" & SelectedID & ")"
Rows.Count should be fully qualified and With ThisWorkbook.Worksheets("Sheet1") and fully qualifying will make your code read better.
Function getSelectedIDSQL() As String
Dim ID As Range, StaffID As Range
Dim SelectedID As String
With ThisWorkbook.Worksheets("Sheet1")
For Each ID In .Range("A2" & .Range("A" & .Rows.Count).End(xlUp))
If ID.Value > 0 Then SelectedID = SelectedID & "," & ID.Offset(, 1).Value
Next
End With
If Len(SelectedID) Then getSelectedIDSQL = Right(SelectedID, Len(SelectedID) - 1)
End Function

Why doesn't this DAO recordset query return any results?

I am working on an Access 2007 database and I have set up a DAO recordset query, however, it is not returning any results. It does not throw up any errors, just no results. Me.ProID is a text field, it includes letters and numbers. I think it has something to do with the text field, maybe the placement of quotations.
Dim contractSQL As String
Dim contractDB As DAO.Database
Dim contractRS As DAO.Recordset
contractSQL = "SELECT Top 1 ContractName, ItemDescription, Price FROM ContractPricing WHERE AccountNo = " & Me.Parent.[AccntNumber] & " AND PartNo = " & """ & Me.ProdID & """ & " ORDER BY Price Asc"
Set contractDB = CurrentDb
Set contractRS = contractDB.OpenRecordset(contractSQL)
Debug.Print contractRS.RecordCount
That string concatenation is likely wrong. " & """ & Me.ProdID & """ & " should almost certainly be '" & Me.ProdID & "'
I don't know if you're referring to this:
contractSQL = "SELECT Top 1 ContractName, ItemDescription, Price FROM ContractPricing WHERE AccountNo = " & Me.Parent.[AccntNumber] & " AND PartNo = " & Me.ProdID & " ORDER BY Price Asc"
I'm not sure if this would help you. I'm also new to this. But hopefully it will.

SELECT Queries in Access VBA

I have an Access database consisting of two tables, Individuals & Pairs. Individuals consists two columns; 'Bird_ID' and 'Parents_Pair_number' and Pairs consists of three columns; 'Pair', 'Female_ID' and 'Male_ID'. 'Parents_Pair_number' and 'Pair' have a Many-to-one relationship. Via this relation one can check the parents of an individual.
But now I was thinking of making automatized family trees using a form. My plan was to make a field (Bird_ID_Field) in which you can find a certain individual and that other fields such as Father, Mother, Fathers father etc. etc. would auto-fill based on that entry.
I tried to auto-fill the Father_ID (Field) using the following VBA code:
Dim strSQL As String
Dim strBird_ID As String
If Bird_ID_Field <> "" Then
strBird_ID = Bird_ID_Field
strSQL = "SELECT Pairs.[Male_ID] " & _
"FROM Pairs " & _
"WHERE PAIR = (SELECT Individuals.[Parents_Pair_number] FROM Individuals WHERE Individuals.[Bird_ID]= '" & strBird_ID & "');"
DoCmd.OpenQuery strSQL
Father_ID = strSQL
End If
But after updating the Bird_ID_Field I get the following error: Microsoft Access can't find the object ''.
Do you have any idea what's wrong?
Thanks in forward!
Jeroen
You should use recordsets:
Dim rst As Recordset
Dim strSQL As String
If Nz(Bird_ID_Field,"") <> "" Then
strBird_ID = Nz(Bird_ID_Field, "")
strSQL = "SELECT Pairs.[Male_ID] " & _
"FROM Pairs " & _
"WHERE PAIR = (SELECT Individuals.[Parents_Pair_number] FROM Individuals WHERE Individuals.[Bird_ID]= '" & strBird_ID & "');"
Set rst = CurrentDb.OpenRecordset(strSQL)
If rst.RecordCount > 0 Then
Father_ID = rst![Male_ID]
End If
End If
rst.Close
Set rst = Nothing
And also I would recommend to use JOIN for tables joining instead of subquery.

Combine String with wildcard characters

I am working to write a VBA code that will return data from a specific row in an access database. The data that am I working with is pretty simple, and I am a complete newbie to VBA coding, so please don't judge me if this is a stupid question.
I have the following code, which runs after a user updates a text box in a form:
Sub Text2_AfterUpdate()
Dim VarA As Variant
Dim VarW As Variant
VarW = Left([Forms]![Return Student Info]![Text2], InStr([Forms]![Return Student Info]![Text2], "-") - 1)
VarA = DLookup("[Name First]&' '&[Name Last]&' '&[Student Number]", "Student Bookings (term 84)", _
"[Room Space Description] like 'VarW'?? ")
MsgBox (VarW)
Text0.Value = VarA
End Sub
I am trying to search in the DLookup function for the Variable VarW with two wildcard characters add on the end. If I were to replace VarW with 'Couch Center 224E-1', my intended result would appear.
There are two students living in one room, one in Couch Center 224E-1 and one in Couch Center 224E-2. Ideally I would extend the code to return both students using the wildcard characters (I know DLookup only returns one result).
Right now, DLookup only returns values if the direct value is typed into either the DLookup syntax or VarW.
The problem was the criteria of your DLookUp. Try this:
Sub Text2_AfterUpdate()
Dim VarA As Variant
Dim VarW As Variant
VarW = Left(Me.Text2, InStr(Me.Text2, "-") - 1)
VarA = DLookup("[Name First] &' '& [Name Last] &' '& [Student Number]", "Student Bookings (term 84)", _
"[Room Space Description] like '" & VarW & "??'")
MsgBox (VarW)
Text0.Value = VarA
End Sub
Firstly, you should concat where-string with VarW value
VarA = DLookup("[Name First] & ' ' & [Name Last] & ' ' & [Student Number]", "[Student Bookings (term 84)]", _
"[Room Space Description] like '" & VarW & "??'")
Secondly, use Recordset.
Also you can use "Me" for current form, instead of "[Forms]![Return Student Info]!"
Sub Text2_AfterUpdate()
Dim VarA As Variant
Dim VarW As Variant
Dim Rs As Recordset
VarW = Left(Me.Text2, InStr(Me.Text2, "-") - 1)
Set Rs = CurrentDb.OpenRecordset("SELECT * FROM [Student Bookings (term 84)] WHERE [Room Space Description] like '" + VarW + "??'", dbOpenSnapshot)
While Not Rs.EOF 'loop for each rows that query returned
MsgBox (Rs![Name First] & " " & Rs![Name Last] & " " & Rs![Student Number]))
Wend
Set Rs = Nothing
End Sub
Also, if you don't like "concat-style", there is another way. It's using stored parameter-queries.

Fill Field When All Checkboxes Toggled Access 2010

I have an expenditures subform in Access 2010 that lists the predicted costs associated with the project for each year. Most projects only have one year, but some have more than one. Each cost has a Final checkbox next to it that should be checked when the amount is confirmed, ie. at the end of each year.
It basically looks something like this:
Year | Cost | Final
--------+-----------+--------------------
2017 | $100 | [checked box]
2018 | $200 | [unchecked box]
| | [unchecked box]
I have another field outside the table, FinalCost, that adds up everything in the Cost field. Right now, it fills in the amount from any year which has a checked Final box. That should only be filled when all the Final boxes are checked.
Ex. Right now, it should show nothing even though Final for 2017 is checked. When 2018 is checked, it should show $300. Instead, it shows $100 even though there's still an empty checkbox.
This is the code for this form.
Private Sub Form_AfterUpdate()
Dim rs1, rs2 As Recordset
Dim sql, sql2 As String
sql = "SELECT Sum(Amount) as Final From Expenditures " & _
"Where ProjNo = '" + Me.ProjNo + "' And Final = True Group by ProjNo"
sql2 = "SELECT FinalExpenditure From ActivityCash " & _
"Where ProjNo = '" + Me.ProjNo + "'"
Set rs1 = CurrentDb.OpenRecordset(sql, dbOpenDynaset, dpinconsistent)
Set rs2 = CurrentDb.OpenRecordset(sql2, dbOpenDynaset, dpinconsistent)
If rs1.RecordCount > 0 Then
If rs2.RecordCount > 0 Then
Do While Not rs2.EOF
rs2.Edit
rs2!FinalExpenditure = rs1!Final
rs2.Update
rs2.MoveNext
Loop
End If
End If
rs2.Close
rs1.Close
Set rs1 = Nothing
Set rs2 = Nothing
End Sub
What would be the best way to go about doing this?
EDIT: When the last box is checked, a new row is automatically added with an untoggled checkbox but no information.
Replace the statement beginning with sql = ... with this:
sql = "SELECT SUM(e1.Amount) AS Final " & _
" FROM Expenditures AS e1 " & _
" WHERE NOT EXISTS (SELECT 'x' FROM Expenditures e2 WHERE e2.Final=0 AND e1.ProjNo = e2.ProjNo) " & _
" AND e1.ProjNo = '" & Me.ProjNo & "'"
This query will return data only if there are all expeditures for the project marked as final. As you check for rs1.RecordCount > 0 there will be no update if this query returns no records.
So, before sql, I would verify that all records have True in your Final field.
To do that, let's just return a COUNT() of (any) records that have Final = False, and we can then decide to do what we want.
So, something like,
Dim Test as Integer
test = DCount("*", "YourTableName", "Final = False AND ProjNo = " & Me.ProjNo &"")
If test > 0 Then
'Don't fill the box
Else
'Fill the box, everything is True
'Read through your recordsets or whatever else you need to do
End If
To use a query, we essentially need to replicate the Dcount() functionality.
To do this, we need another Recordset variable, and we need to check the value of the Count() field from our query.
Create a query that mimicks this:
SELECT COUNT(*) As CountTest
FROM YourTable
HAVING Final = False
AND ProjNo = whateverprojectnumberyou'reusing
Save it, and remember that query's name.
Much like the DCount(), we need to make this "check" determine the route of your code.
Dim rst As DAO.Recordset
Set rst = CurrentDb.OpenRecordset("YourQuery'sNameHere")
If rst!CountTest > 0 Then
'They are not all Checked (aka True)
Else
'Supply the value to the FinalCost
End If
Set rst = Nothing
Change this:
sql = "SELECT Sum(Amount) as Final From Expenditures " & _
"Where ProjNo = '" + Me.ProjNo + "' And Final = True Group by ProjNo"
For this:
"SELECT SUM(Amount) - SUM(IIF(Final,1,0)*Amount) as YetToConfirm, SUM(Amount) as Confirmed From Expenditures " & _
"Where ProjNo = '" + Me.ProjNo + "' Group by ProjNo"
rs1 will return two values, the total value if all costs were confirmed in the rs1!Confirmed, and the value yet to confirm in rs1!YetToConfirm
Then here:
Do While Not rs2.EOF
rs2.Edit
rs2!FinalExpenditure = rs1!Final
rs2.Update
rs2.MoveNext
Loop
change it to:
Do While Not rs2.EOF
rs2.Edit
rs2!FinalExpenditure = Iif(rs1!YetToConfirm = 0, rs1!Confirmed, 0)
rs2.Update
rs2.MoveNext
Loop
One way to process this would be check using a subquery whether last year(verified using a dmax function) in each project has been checked in the final column, if this is true, get your sum of checked amounts, else dont calculate the sum.
I have modified your sql string to include this and I tested it against your given example to confirm its showing a sum of $300 or nothing.
SQL = ""
SQL = SQL & " SELECT Sum(Amount) as Final From Expenditures "
SQL = SQL & " Where ProjNo = '" & Me.ProjNo & "' And Final = True "
SQL = SQL & " And (SELECT Expenditures.Final FROM Expenditures where year = ( "
SQL = SQL & " DMax('Year','Expenditures','ProjNo= " & Chr(34) & Me.ProjNo & Chr(34) & "'))) = true "
SQL = SQL & " Group by ProjNo "