% ####### The following is a class file, and the annotation below is the method of calling the class # Note: if the system does not support Scripting. for FileSystemObject objects, the database compression function cannot be used # access database class # CreateDbFile creates an Access database file # CompactDatabase compresses an Acce
% '####### The following is a class file, and the annotation below is the method for calling the class' # Note: if the system does not support Scripting. fileSystemObject object, the database compression function will not be able to use '# access Database Class' # CreateDbFile to create an Access database file '# CompactDatabase to compress an Acce
<%
####### The following is a class file, and the annotation below is the method of calling the class
'# Note: if the system does not support
CreateScripting. FileSystemObject object,
So
Database
CompressionFunction will be unavailable
'# Access
DatabaseClass
'# CreateDbFile
CreateOne Access
DatabaseFile
'# CompactDatabase
CompressionOne Access
DatabaseFile
'#
CreateObject method:
'# Set a = New DatabaseTools
Class DatabaseTools
Public function CreateDBfile (byVal dbFileName, byVal DbVer, byVal SavePath)
'
Create
DatabaseFile
'If DbVer is 0 Then Create Access97 dbFile
'If DbVer is 1 Then Create Access2000 dbFile
On error resume Next
If Right (SavePath, 1) <> "\" Or Right (SavePath, 1) <> "/" Then SavePath = Trim (SavePath )&"\"
If Left (dbFileName, 1) = "\" Or Left (dbFileName, 1) = "/" Then dbFileName = Trim (Mid (dbFileName, 2, Len (dbFileName )))
If DbExists (SavePath & dbFileName) Then
Response. Write ("sorry, this
DatabaseAlready exists! ")
CreateDBfile = False
Else
Dim Ca
Set Ca = Server. CreateObject ("ADOX. Catalog ")
If Err. number <> 0 Then
Response. Write ("No
Create, Please check the error message
"& Err. number &"
"& Err. Description)
Err. Clear
Exit function
End If
If DbVer = 0 Then
Call Ca. Create ("PRovider = Microsoft. Jet. OLEDB.3.51; Data Source =" & SavePath & dbFileName)
Else
Call Ca. Create ("Provider = Microsoft. Jet. OLEDB.4.0; Data Source =" & SavePath & dbFileName)
End If
Set Ca = Nothing
CreateDBfile = True
End If
End function
Public function CompactDatabase (byVal dbFileName, byVal DbVer, byVal SavePath)
'
Compression
DatabaseFile
'0 is access 97
'1 is access 2000.
On Error resume next
If Right (SavePath, 1) <> "\" Or Right (SavePath, 1) <> "/" Then SavePath = Trim (SavePath )&"\"
If Left (dbFileName, 1) = "\" Or Left (dbFileName, 1) = "/" Then dbFileName = Trim (Mid (dbFileName, 2, Len (dbFileName )))
If DbExists (SavePath & dbFileName) Then
Response. Write ("sorry, this
DatabaseAlready exists! ")
CompactDatabase = False
Else
Dim Cd
Set Cd = Server. CreateObject ("JRO. JetEngine ")
If Err. number <> 0 Then
Response. Write ("No
Compression, Please check the error message
"& Err. number &"
"& Err. Description)
Err. Clear
Exit function
End If
If DbVer = 0 Then
Call Cd. CompactDatabase ("Provider = Microsoft. Jet. OLEDB.3.51; Data
Source = "& SavePath &
DbFileName, "Provider = Microsoft. Jet. OLEDB.3.51; Data Source = "&
SavePath & dbFileName & ". bak. mdb; Jet OLEDB; Encrypt Database = True ")
Else
Call Cd. CompactDatabase ("Provider = Microsoft. Jet. OLEDB.4.0; Data
Source = "& SavePath &
DbFileName, "Provider = Microsoft. Jet. OLEDB.4.0; Data Source =" & SavePath
& DbFileName & ". bak. mdb; Jet OLEDB; Encrypt Database = True ")
End If
'Delete the old
DatabaseFile
Call DeleteFile (SavePath & dbFileName)
'Convert
CompressionAfter
DatabaseFile Restoration
Call RenameFile (SavePath & dbFileName & ". bak. mdb", SavePath & dbFileName)
Set Cd = False
CompactDatabase = True
End If
End function
Public function DbExists (byVal dbPath)
'Lookup
DatabaseWhether the file exists
On Error resume Next
Dim c
Set c = Server. CreateObject ("ADODB. Connection ")
C. Open "Provider = Microsoft. Jet. OLEDB.4.0; Data Source =" & dbPath
If Err. number <> 0 Then
Err. Clear
DbExists = false
Else
DbExists = True
End If
Set c = nothing
End function
Public function AppPath ()
'Get the current real path
AppPath = Server. MapPath ("./")
End function
Public function AppName ()
'Get the name of the current program
AppName = Mid (Request. serverVariables ("SCRIPT_NAME"), (Request. serverVariables ("SCRIPT_NAME"), "/",-1, 1) + 1, Len (Request. serverVariables ("SCRIPT_NAME ")))
End Function
Public function DeleteFile (filespec)
'Delete an object
Dim fso
Set fso = CreateObject ("Scripting. FileSystemObject ")
If Err. number <> 0 Then
Response. Write ("An error occurred while deleting the file! View error information
"& Err. number &"
"& Err. Description)
Err. Clear
DeleteFile = False
End If
Call fso. DeleteFile (filespec)
Set fso = Nothing
DeleteFile = True
End function
Public function RenameFile (filespec1, filespec2)
'Modify an object
Dim fso
Set fso = CreateObject ("Scripting. FileSystemObject ")
If Err. number <> 0 Then
Response. Write ("An error occurred while modifying the file name! View error information
"& Err. number &"
"& Err. Description)
Err. Clear
RenameFile = False
End If
Call fso. CopyFile (filespec1, filespec2, True)
Call fso. DeleteFile (filespec1)
Set fso = Nothing
RenameFile = True
End function
End Class
%>
