数据库连接大全

副标题#e#

无意中在公司的电脑里发现前人留下的一个db.fun的文件，打开一看原来是众多连接数据库的函数。也许用得着，收录一下。

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'---------------------------------------------------
Function GetMdbConnection( FileName )
?? Dim Provider,DBPath

?? Provider = "Provider=Microsoft.Jet.OLEDB.4.0;"
?? DBPath = "Data Source=" & Server.MapPath(FileName)
?? Set GetMdbConnection = GetConnection( Provider & DBPath )
End Function

'---------------------------------------------------
Function GetSecuredMdbConnection( FileName,Password )
?? Dim Provider,DBPath

?? Provider = "Provider=Microsoft.Jet.OLEDB.4.0;"
?? DBPath = "Data Source=" & Server.MapPath(FileName)
?? Set GetSecuredMdbConnection = GetConnection( Provider & DBPath & ";Jet OLEDB:Database Password=" & Password )
End Function

'---------------------------------------------------
Function GetDbcConnection( FileName )
?? Dim Driver,SourceType,DBPath

?? Driver = "Driver={Microsoft Visual FoxPro Driver};"
?? SourceType = "SourceType=DBC;"
?? DBPath = "SourceDB=" & Server.MapPath( FileName )
?? Set GetDbcConnection = GetConnection( Driver & SourceType & DBPath )
End Function

'---------------------------------------------------
Function GetDbfConnection( Directory )
?? Dim Driver,DBPath

?? Driver = "Driver={Microsoft Visual FoxPro Driver};"
?? SourceType = "SourceType=DBF;"
?? DBPath = "SourceDB=" & Server.MapPath( Directory )
?? Set GetDbfConnection = GetConnection( Driver & SourceType & DBPath )
End Function

'---------------------------------------------------
Function GetExcelConnection( FileName )
?? Dim Driver,DBPath

?? Driver = "Driver={Microsoft Excel Driver (*.xls)};"
?? DBPath = "DBQ=" & Server.MapPath( FileName )
?? Set GetExcelConnection = GetConnection( Driver & "ReadOnly=0;" & DBPath )
End Function

'---------------------------------------------------
Function GetTextConnection( Directory )
?? Dim Driver,DBPath

?? Driver = "Driver={Microsoft Text Driver (*.txt; *.csv)};"
?? DBPath = "DBQ=" & Server.MapPath( Directory )
?? Set GetTextConnection = GetConnection( Driver & DBPath )
End Function

'---------------------------------------------------
Function GetSQLServerConnection( Computer,UserID,Password,Db )
?? Dim Params,conn
??
?? Set GetSQLServerConnection = Nothing
?? Params = "Provider=SQLOLEDB.1"
?? Params = Params & ";Data Source=" & Computer
?? Params = Params & ";User ID=" & UserID
?? Params = Params & ";Password=" & Password
?? Params = Params & ";Initial Catalog=" & Db
?? Set conn = Server.CreateObject("ADODB.Connection")
?? conn.Open Params
?? Set GetSQLServerConnection = conn
End Function

'---------------------------------------------------
Function GetMdbRecordset( FileName,Source )
?? Set GetMdbRecordset = GetMdbRs( FileName,Source,2,"" )
End Function

'---------------------------------------------------
Function GetMdbStaticRecordset( FileName,Source )
?? Set GetMdbStaticRecordset = GetMdbRs( FileName,3,"" )
End Function

'---------------------------------------------------
Function GetSecuredMdbRecordset( FileName,Password )
?? Set GetSecuredMdbRecordset = GetMdbRs( FileName,Password )
End Function

'---------------------------------------------------
Function GetSecuredMdbStaticRecordset( FileName,Password )
?? Set GetSecuredMdbStaticRecordset = GetMdbRs( FileName,Password )
End Function

'---------------------------------------------------
Function GetDbfRecordset( Directory,SQL )
?? Set GetDbfRecordset = GetOtherRs( "Dbf",Directory,SQL,2 )
End Function

'---------------------------------------------------
Function GetDbfStaticRecordset( Directory,SQL )
?? Set GetDbfStaticRecordset = GetOtherRs( "Dbf",3 )
End Function

'---------------------------------------------------
Function GetDbcRecordset( FileName,SQL )
?? Set GetDbcRecordset = GetOtherRs( "Dbc",FileName,2 )
End Function

'---------------------------------------------------
Function GetDbcStaticRecordset( FileName,SQL )
?? Set GetDbcStaticRecordset = GetOtherRs( "Dbc",3 )
End Function

'---------------------------------------------------
Function GetExcelRecordset( FileName,SQL )
?? Set GetExcelRecordset = GetOtherRs( "Excel",2 )
End Function

'---------------------------------------------------
Function GetExcelStaticRecordset( FileName,SQL )
?? Set GetExcelStaticRecordset = GetOtherRs( "Excel",3 )
End Function

'---------------------------------------------------
Function GetTextRecordset( Directory,SQL )
?? Set GetTextRecordset = GetOtherRs( "Text",2 )
End Function

'---------------------------------------------------
Function GetTextStaticRecordset( Directory,SQL )
?? Set GetTextStaticRecordset = GetOtherRs( "Text",3 )
End Function

'---------------------------------------------------
Function GetSQLServerRecordset( conn,source )
?? Dim rs

?? Set rs = Server.CreateObject("ADODB.Recordset")
?? rs.Open source,conn,2
?? Set GetSQLServerRecordset = rs
End Function

'---------------------------------------------------
Function GetSQLServerStaticRecordset( conn,2
?? Set GetSQLServerStaticRecordset = rs
End Function

'---------------------------------------------------
Function GetConnection( Param )
?? Dim conn

?? On Error Resume Next
?? Set GetConnection = Nothing
?? Set conn = Server.CreateObject("ADODB.Connection")
?? If Err.Number <> 0 Then Exit Function

?? conn.Open Param
?? If Err.Number <> 0 Then Exit Function
?? Set GetConnection = conn
End Function

'---------------------------------------------------
Function GetMdbRs( FileName,Cursor,Password )
?? Dim conn,rs

#p#副标题#e##p#分页标题#e#

?? On Error Resume Next
?? Set GetMdbRs = Nothing
?? If Len(Password) = 0 Then
?????? Set conn = GetMdbConnection( FileName )
?? Else
?????? Set conn = GetSecuredMdbConnection( FileName,Password )
?? End If
?? If conn Is Nothing Then Exit Function

?? Set rs = Server.CreateObject("ADODB.Recordset")
?? If Err.Number <> 0 Then Exit Function

?? rs.Open source,2
?? If Err.Number <> 0 Then Exit Function
?? Set GetMdbRs = rs
End Function

'---------------------------------------------------
Function GetOtherRs( DataType,Path,Cursor )
?? Dim conn,rs
?? On Error Resume Next
?? Set GetOtherRs = Nothing

?? Select Case DataType
????? Case "Dbf"
???????? Set conn = GetDbfConnection( Path )
????? Case "Dbc"
???????? Set conn = GetDbcConnection( Path )
????? Case "Excel"
???????? Set conn = GetExcelConnection( Path )
????? Case "Text"
???????? Set conn = GetTextConnection( Path )
?? End Select
?? If conn Is Nothing Then Exit Function

?? Set rs = Server.CreateObject("ADODB.Recordset")
?? If Err.Number <> 0 Then Exit Function

?? rs.Open SQL,2
?? If Err.Number <> 0 Then Exit Function
?? Set GetOtherRs = rs
End Function

'---------------------------------------------------
Function GetSQLServerRs( Computer,Db,source,rs

?? On Error Resume Next
?? Set GetSQLServerRs = Nothing
?? Set conn = GetSQLServerConnection( Computer,Db )
?? If conn Is Nothing Then Exit Function
??
?? Set rs = Server.CreateObject("ADODB.Recordset")
?? If Err.Number <> 0 Then Exit Function
??
?? rs.Open source,2
?? If Err.Number <> 0 Then Exit Function
??
?? Set GetSQLServerRs = rs
End Function
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