我创建了一个Access数据库，我希望将其分发给一个小组。虽然我总是可以在excel中导出表并在那里合并/附加数据，但有没有办法同步数据库，可能是使用VBA？
为了进一步说明，在数据库应用程序中的一种形式中，可能存在同步按钮，并且可以打开一个对话框以查找要同步的accdb。随之而来的是，VBA将在两个accdbs之间“同步”这个表（当然这个结构具有相同的结构）。
这可能吗？见解会很好。谢谢！
答案 0 :(得分：4)
是的，这是完全可能的。以下是有关比较两个DB和记录更改的一些注意事项。
该程序在模块顶部需要以下内容：
Dim strFileNew As String
Dim strFileOld As String
Dim strLog As String
Dim dbOld As Database
变量可能包含：
strLog = "log.txt"
strFileNew = "z:\docs\dbNew.mdb"
strFileOld = "z:\docs\dbOld.mdb"
Set dbOld = OpenDatabase(strFileOld)
然后比较：
Sub LogCompareDB(db As Database)
''References : Windows Script Host Object Model
'' This is set by default for a number of versions
'' : Microsoft DAO x.x Object Library
'' For 2010, the DAO library is called
'' :Microsoft Office 12.0 Access Database Engine Object Library
Dim tdf As TableDef
Dim rs0 As DAO.Recordset
Dim rs1 As DAO.Recordset
Dim fld As DAO.Field
Dim idx As Index
Dim idxPrimary As Index
Dim strIndexList As String
Dim strIndex As String
Dim strID As String
Dim strSQL As String
Dim strChanged As String
Dim blnNew As Boolean
Dim fs As New FileSystemObject
Dim ts As TextStream
Set ts = fs.CreateTextFile(strLog, True)
''For each table in the old database
''(It would probably be a good idea to check the
''new database for added tables)
For Each tdf In db.TableDefs
'' Skip system tables
If Left(tdf.Name, 4) <> "MSys" Then
strIndex = vbNullString
Set idxPrimary = Nothing
strIndexList = vbNullString
''Get the primary index and index fields
For Each idx In tdf.Indexes
If idx.Primary = True Then
Set idxPrimary = idx
For Each fld In idx.Fields
strIndex = strIndex & " AND t0.[" & fld.Name _
& "] = t1.[" & fld.Name & "]"
strIndexList = strIndexList & "," & fld.Name
Next
strIndex = Mid(strIndex, 5)
End If
Next
''There is no basis for comparison if there is no index.
''A unique index would also be a possibility, but hey, let's
''not go over the top :)
If strIndex > vbNullString Then
''Select all records from the table for both databases
strSQL = "SELECT * FROM [;DATABASE=" & strFileNew & "].[" _
& tdf.Name & "] As t0 LEFT JOIN [" _
& tdf.Name & "] As t1 ON " & strIndex
Set rs0 = db.OpenRecordset(strSQL)
''A convenient list of fields from the old database
''It would probably be a good idea to check the
''new database for added fields.
strSQL = "SELECT * FROM [;DATABASE=" & strFileOld & "].[" _
& tdf.Name & "] As t0 WHERE 1=2"
Set rs1 = db.OpenRecordset(strSQL)
Do While Not rs0.EOF
strID = vbNullString
blnNew = False
''If the index fields are null, then it is a new record
For Each fld In idxPrimary.Fields
strID = strID & fld.Name & ": " & rs0("[t0." & fld.Name & "]") & vbCrLf
If IsNull(rs0("[t1." & fld.Name & "]")) Then
blnNew = True
End If
Next
If blnNew Then
''Write to log
ts.WriteLine "NEW RECORD " & strID & vbCrLf
Else
''Not a new record, so is it a changed record?
strChanged = vbNullString
For Each fld In rs1.Fields
''No need to check index fields, because they are equal
If InStr(strIndexList, fld.Name) = 0 Then
''Add null string for purposes of comparison ''trailing
If "" & rs0("[t0." & fld.Name & "]") <> "" & rs0("[t1." & fld.Name & "]") Then
strChanged = strChanged & vbCrLf _
& fld.Name & " Is: " & Trim(rs0("[t0." & fld.Name & "]")) _
& " Was: " & Trim(rs0("[t1." & fld.Name & "]"))
End If
End If
Next
If strChanged <> vbNullString Then
''Write to log
ts.WriteLine "CHANGED RECORD " & strID
ts.WriteLine strChanged & vbCrLf
End If
End If
rs0.MoveNext
Loop
Else
ts.WriteLine "NO PRIMARY INDEX " & tdf.Name & vbCrLf
End If
End If
Next
ts.Close
FollowHyperlink strLog
End Sub
答案 1 :(得分：0)
Option Compare Database
Private Sub Command4_Click()
Dim tablename1, tablename2 As String
tablename1 = Text0.Value
tablename2 = Text2.Value
'On Error GoTo Err_cmdValidateGeneralInfo_Click
Dim F As DAO.Field
Dim rs As DAO.Recordset
Dim rs1 As DAO.Recordset
Set curDB = CurrentDb()
'If Me.DateModified = Date Then
'Adds new employees to the TT_GeneralInfo table in the FTEI_PhoneBook.mdb - which is used thru out the AP databases.
' DoCmd.OpenQuery "qryEmpData_TT_General"
strsql = "Select * from " & tablename1
Set rs = curDB.OpenRecordset(strsql)
strsql1 = "Select * from " & tablename2
DoCmd.CopyObject , "Unmatched_records", acTable, tablename1
curDB.Execute "DELETE FROM Unmatched_records"
Set rs1 = curDB.OpenRecordset(strsql1)
Do Until rs.EOF
For Each F In rs.Fields
If rs.Fields(F.Name) <> rs1.Fields(F.Name) Then
'rs.Edit
strsql = "Select * into test from " & tablename1 & " where " & F.Name & " = """ & rs.Fields(F.Name) & """"
DoCmd.RunSQL strsql
If DCount(F.Name, "test") <> 0 Then
GoTo append_unmatch
'appending unmacthed records
append_unmatch:
strsql2 = "insert into Unmatched_records Select * from test"
DoCmd.RunSQL strsql2
'if record doesnt match move to next one
GoTo Nextrecord
End If
' rs.Fields(F.Name) = rs1.Fields(F.Name)
' rs.Update
End If
Next F
Nextrecord:
rs.MoveNext
rs1.MoveNext
Loop
If DCount("test", F.Name) <> 0 Then
MsgBox ("The two tables didnt match. Check table test for unmatching reocrds.")
Else
MsgBox ("Tables match!")
End If
End Sub