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Record number using DAO

How to determine the current record number in a recordset using VBA with a DAO connection?

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CurrentPosition = recordsetName.AbsolutePosition +1

Posted on Feb 06, 2009

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1 Answer

Either BOF or EOF is True


The BOF property returns True (-1) if the current record position is before the first record in the Recordset, otherwise it returns False (0).
The EOF property returns True (-1) if the current record position is after the last record in the Recordset, otherwise it returns False (0).

Jan 11, 2014 | Computers & Internet

1 Answer

How do you add a RANK number to a Microsoft Access query?


While there is no RANK command in Access, you may still do it using either VBA code or two queries concatenated. Lets touch the queries method since based on your question you seem to prefer the straight query method.

You have to modify the query to add a custom field based on a field containing a value that can be evaluated using either the GREATER THAN (>) or the LESS THAN (
Usually you would need to use two subsequent queries defining custom fields that receive results from a subquery. How to put them together depends on the specific rank you need to create. For a full example, please refer to:

http://support.microsoft.com/kb/120608

Mar 09, 2011 | Computers & Internet

1 Answer

How to use adodb connection in visual basic version 6?


To use Connection String, we have to set the Connection String to a valid Connect String and then calling the Open method we can open the Connection by passing the connection string as first argument. Now a command object is created with Record set Open method that is given as argument. Then command is executed by command.Execute metod and resulting amswer is saved in recordset created.

Jun 28, 2010 | Microsoft Step by Step Visual Basic 6.0...

1 Answer

Example sorurce code for database


Hello my friend try this code: This code is design for Visual Basic 6.0
Function for Connection and recordset string.  '========Connection String====== Public Sub connection(ByRef dConnection As ADODB.connection, ByVal dLocation As String)     dConnection.Open "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & dLocation & ";Persist Security Info=False;" End Sub '======End of Connection String======
'=======Recordset String=========== Public Sub recordset(ByRef sRecordset As ADODB.recordset, ByRef sConnection As ADODB.connection, ByVal sSQl As String) With sRecordset .CursorLocation = adUseClient .Open sSQl, sConnection, adOpenKeyset, adLockOptimistic End With End Sub '======End Recordset String========
How to apply the above function? Application:
'====== Command Save Button======== Private Sub cmdsave_Click() Dim cn3 As New ADODB.connection Dim rs3 As New ADODB.recordset
Call connection(cn3, App.Path & "\CASGC.mdb") Call recordset(rs3, cn3, "Select * from Debtor_Creditor_Account") Set dtglobal.DataSource = rs3.DataSource   
With rs3   .AddNew   .Fields("Code") = txtCode.Text   .Fields("Description") = txtDescription.Text   .Fields("Tag") = cbotag.Text   .Update   .Requery    End With   MsgBox "New Account has been Added", vbInformation   Set cn3 = Nothing Set rs3 = Nothing
End Sub '=======end of Command Save button=====
The advantage of using this code is setting your database connection is you have a reliable connection towards your database where ever you place your database you can you don't to remount you databse connection control. Also you are no longer need to use a ADO control or DAO control just copy the function and paste it in your coding area and call the function and you have now a working database and recordset connection string. 

For more details regarding how to apply this code just email me at this address: geo_jonas@yahoo.com to get more codes. thanks.. Please rate this Solution.

Jul 08, 2009 | Microsoft Visual Basic 6.0 for PC

2 Answers

Printing syntax


'declare the variables
Dim Connection
Dim ConnString
Dim Recordset
Dim SQL

'define the connection string, specify database driver
ConnString="DRIVER={SQL Server};SERVER=yourServername;UID=yourUsername;" & _
"PWD=yourPassword;DATABASE=yourDatabasename"

'declare the SQL statement that will query the database
SQL = "SELECT * FROM TABLE_NAME"

'create an instance of the ADO connection and recordset objects
Set Connection = Server.CreateObject("ADODB.Connection")
Set Recordset = Server.CreateObject("ADODB.Recordset")

'Open the connection to the database

Connection.Open ConnString

'Open the recordset object executing the SQL statement and return records
Recordset.Open SQL,Connection

'first of all determine whether there are any records
If Recordset.EOF Then
Response.Write("No records returned.")
Else
'if there are records then loop through the fields
Do While NOT Recordset.Eof
Response.write Recordset("FIRST_FIELD_NAME")
Response.write Recordset("SECOND_FIELD_NAME")
Response.write Recordset("THIRD_FIELD_NAME")
Response.write "<br>"
Recordset.MoveNext
Loop
End If


'close the connection and recordset objects to free up resources
Recordset.Close
Set Recordset=nothing
Connection.Close
Set Connection=nothing

May 16, 2009 | Microsoft Windows Vista Ultimate Edition

1 Answer

How to connect vb with ms access


se Adodc OR Even better.. ADODB. for this you need to get MDAC fromMicrosoft free download.(check under project_References- Microsoft DataActiveX objects.. the current no is 2.8. if it is not there download invb directory.

next, you can learn about creating a DSN from control panel, ODBC. onceyou learn this, connection becomes a piece of cake. get some free vbtutoriasl from WWW.

then

you need to use DAO or ADO to connect to the database. better study both but since ADO is current, i am showing that code.
under Menu Project_References, put a check mark on Microsoft ActiveXData Objects latest version (though it works for all, currently 2.8with sp pack 1 ).

at the general declarations:
dim conn as adodb.connection, rec as adodb.recordset, esql as string,esql1 as string
Private Function connect()
Set rec = New ADODB.Recordset
Set conn = New ADODB.Connection
esql = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & "D:VBDesigndhana2.mdb" & ";Persist Security Info=False"
'here you put the correct path of your mdb file. and check if you have jet 4.0

conn.Open (esql), , , 0
End Function

private sub form_Load()
connect
end sub
and for adding records:
say let us say you have 3 fields. then have 3 textboxes and 1 command button on the form.

private command1_click()
esql1="select * from Yourtablename"
rec.open(esql1),conn,, adOpenDynamic, adLockOptimistic
rec.AddNew
rec.Fields(0) = text1.Text
rec.Fields(1) = Text2.text
rec.Fields(2) = text3.text
' you need to check if in your access table design you have Allowed Zero length .. set it to Yes for all text fields.
rec.update
if not rec.eof then rec.movenext
rec.close
conn.close
set conn to nothing
end sub

this will add new records to access table from VB.
' for picture store the full path of the path and the picture file nameint the text field. and in the picturebox of VB form for viewingrecords again you need ADO or ADODC and here you code:picture1.picture=Loadpicture(rec.fields(3) ' depending on where thepicture field is located. you need to make a few trials.
under Menu Project_References, put a check mark on Microsoft ActiveXData Objects latest version (though it works for all, currently 2.8with sp pack 1 ).

at the general declarations:
dim conn as adodb.connection, rec as adodb.recordset, esql as string,esql1 as string

Private Function connect()
Set rec = New ADODB.Recordset
Set conn = New ADODB.Connection
esql = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & "D:VBDesigndhana2.mdb" & ";Persist Security Info=False"
'here you put the correct path of your mdb file. and check if you have jet 4.0

conn.Open (esql), , , 0
End Function

private sub form_Load()
connect
end sub

and for accessing records:

private command1_click()
esql1="select * from Yourtablename where id =" & val(text1) ' for integers

esql1="select * from Yourtablename where name=" & "'" & text1 & "'" ' for string

rec.open(esql1),conn, adOpenstatic, adLockreadonly

label1.caption =rec.Fields(0)
label2.caption= rec.Fields(1)
label3.caption= rec.Fields(2)
' you need to check if in your access table design you have Allowed Zero length .. set it to Yes for all text fields.

rec.close
conn.close
set conn to nothing
end sub


' similarly there are routines to ADD, Delete, Edit, View etc.

Feb 26, 2009 | Computers & Internet

1 Answer

How to add items in combobox using database in vb6.0


There are 2 ways:-

you can set the recordsource in the properties for the comboBox to a table or create a recordset and loop through it adding one item at a time, see example below:-


Dim dept As String
Dim db As DAO.Database
Dim rst As DAO.Recordset
Dim qd As DAO.QueryDef
Dim varResults
Dim oMessage
Dim sQueryName As String
Set db = CurrentDb
mdbname.[Form_Name].Department.SetFocus
dept = formname[Form_Name].Department.Text
sQueryName = "Query_Name"
Set qd = db.QueryDefs(sQueryName)
'
' set up input field for query
'
qd.Parameters("field_from_query") = dept
Set rst = qd.OpenRecordset()
Dim recCount As Integer
recCount = rst.RecordCount
If recCount > 0 Then
With rst
.MoveLast
.MoveFirst
Do While Not .EOF
listBoxproducts.AddItem .Fields("pname")
listboxCode.AddItem .Fields("pcode")
listboxPrice.AddItem .Fields("pprice")
.MoveNext
Loop
End With
rst.Close
Set rst = Nothing
Set qd = Nothing
Set db = Nothing

Jan 13, 2009 | Computers & Internet

1 Answer

Book mark property of recordset (ado)


The bookmark property of a recordset lets you store and retrieve the location of a record in a variable so that you can move directly to it in your recordset without having to use a query to extract that record. Like you can just move forward a record and back a record, or move to the first or last records without a quesry statement, you can move to the bookmarked record directly in code.

Here's a good VB example that compares the bookmakr property to the movefirst and movelast properties. This should answer your question, and please rate my answer.

'BeginBOFVB 'To integrate this code 'replace the data source and initial catalog values 'in the connection string Public Sub Main() On Error GoTo ErrorHandler 'recordset and connection variables Dim Cnxn As ADODB.Connection Dim rstPublishers As ADODB.Recordset Dim strCnxn As String Dim strSQLPubs As String 'record variables Dim strMessage As String Dim intCommand As Integer Dim varBookmark As Variant ' open connection Set Cnxn = New ADODB.Connection strCnxn = "Provider='sqloledb';Data Source='MySqlServer';" & _ "Initial Catalog='Pubs';Integrated Security='SSPI';" Cnxn.Open strCnxn ' Open recordset and use client cursor ' to enable AbsolutePosition property Set rstPublishers = New ADODB.Recordset strSQLPubs = "SELECT pub_id, pub_name FROM publishers ORDER BY pub_name" rstPublishers.Open strSQLPubs, strCnxn, adUseClient, adOpenStatic, adCmdText rstPublishers.MoveFirst Do Until rstPublishers.EOF ' Display information about current record ' and get user input strMessage = "Publisher: " & rstPublishers!pub_name & _ vbCr & "(record " & rstPublishers.AbsolutePosition & _ " of " & rstPublishers.RecordCount & ")" & vbCr & vbCr & _ "Enter command:" & vbCr & _ "[1 - next / 2 - previous /" & vbCr & _ "3 - set bookmark / 4 - go to bookmark]" intCommand = Val(InputBox(strMessage)) ' Check user input Select Case intCommand Case 1 ' Move forward trapping for EOF rstPublishers.MoveNext If rstPublishers.EOF Then MsgBox "Moving past the last record." & _ vbCr & "Try again." rstPublishers.MoveLast End If Case 2 ' Move backward trapping for BOF rstPublishers.MovePrevious If rstPublishers.BOF Then MsgBox "Moving past the first record." & _ vbCr & "Try again." rstPublishers.MoveFirst End If Case 3 ' Store the bookmark of the current record varBookmark = rstPublishers.Bookmark Case 4 ' Go to the record indicated by the stored bookmark If IsEmpty(varBookmark) Then MsgBox "No Bookmark set!" Else rstPublishers.Bookmark = varBookmark End If Case Else Exit Do End Select Loop ' clean up rstPublishers.Close Cnxn.Close Set rstPublishers = Nothing Set Cnxn = Nothing Exit Sub ErrorHandler: ' clean up If Not rstPublishers Is Nothing Then If rstPublishers.State = adStateOpen Then rstPublishers.Close End If Set rstPublishers = Nothing If Not Cnxn Is Nothing Then If Cnxn.State = adStateOpen Then Cnxn.Close End If Set Cnxn = Nothing If Err <> 0 Then MsgBox Err.Source & "-->" & Err.Description, , "Error" End If End Sub 'EndBOFVB

Jan 07, 2009 | Microsoft Visual Basic 6.0 for PC

1 Answer

No sound


Try setting the recordsettings of ur soundcard to "record what you hear". This way it will record ALL the sounds that are produced in windows. Warning: this also means that it could record an windows systemsound as well.

Jan 01, 2009 | ION Audio TTUSB10 Turntable

1 Answer

Vb 6.0 ado connection without ado control moving next record


I see 2 problems with your code.

1) Each time you call cmdnext_Click, you're reopening the database. Each time you do that, you start at the beginning of the file. You need to have the database opened once, somewhere else in your program. Be sure that the record set is visible from this sub.

2) In order to use the "Next" function, you need a loop like this

'test for no records
IF REC.BOF and REC.EOF then
msgbox "No Records Found"
exit sub
end if

IF NOT REC.EOF then
REC.MoveNext
(display your fields)
END IF


Again, this will only work if your database is opened outside of the cmdNext_Click routine.

Jul 08, 2008 | Microsoft Computers & Internet

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