【下载文档:  万能数据库连接程序.txt 】

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万能数据库连接程序
简介: 连接各种类型数据库 及 对数据库操作的函数 下面这部分程序可说是万能的数据库连接程序几乎可以连接所有的MS数据库，自己拿去研究吧（这个程序是“ASP网页制作教程”这本书里面的――一本好书）： <% '--------------------------------------------------- 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, SourceType, 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, Source, 3, "" ) End Function '--------------------------------------------------- Function GetSecuredMdbRecordset( FileName, Source, Password ) Set GetSecuredMdbRecordset = GetMdbRs( FileName, Source, 2, Password ) End Function '--------------------------------------------------- Function GetSecuredMdbStaticRecordset( FileName, Source, Password ) Set GetSecuredMdbStaticRecordset = GetMdbRs( FileName, Source, 3, Password ) End Function '--------------------------------------------------- Function GetDbfRecordset( Directory, SQL ) Set GetDbfRecordset = GetOtherRs( "Dbf", Directory, SQL, 2 ) End Function '--------------------------------------------------- Function GetDbfStaticRecordset( Directory, SQL ) Set GetDbfStaticRecordset = GetOtherRs( "Dbf", Directory, SQL, 3 ) End Function '--------------------------------------------------- Function GetDbcRecordset( FileName, SQL ) Set GetDbcRecordset = GetOtherRs( "Dbc", FileName, SQL, 2 ) End Function '--------------------------------------------------- Function GetDbcStaticRecordset( FileName, SQL ) Set GetDbcStaticRecordset = GetOtherRs( "Dbc", FileName, SQL, 3 ) End Function '--------------------------------------------------- Function GetExcelRecordset( FileName, SQL ) Set GetExcelRecordset = GetOtherRs( "Excel", FileName, SQL, 2 ) End Function '--------------------------------------------------- Function GetExcelStaticRecordset( FileName, SQL ) Set GetExcelStaticRecordset = GetOtherRs( "Excel", FileName, SQL, 3 ) End Function '--------------------------------------------------- Function GetTextRecordset( Directory, SQL ) Set GetTextRecordset = GetOtherRs( "Text", Directory, SQL, 2 ) End Function '--------------------------------------------------- Function GetTextStaticRecordset( Directory, SQL ) Set GetTextStaticRecordset = GetOtherRs( "Text", Directory, SQL, 3 ) End Function '--------------------------------------------------- Function GetSQLServerRecordset( conn, source ) Dim rs Set rs = Server.CreateObject("ADODB.Recordset") rs.Open source, conn, 2, 2 Set GetSQLServerRecordset = rs End Function '--------------------------------------------------- Function GetSQLServerStaticRecordset( conn, source ) Dim rs Set rs = Server.CreateObject("ADODB.Recordset") rs.Open source, conn, 3, 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, Source, Cursor, Password ) Dim conn, rs 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, conn, Cursor, 2 If Err.Number <> 0 Then Exit Function Set GetMdbRs = rs End Function '--------------------------------------------------- Function GetOtherRs( DataType, Path, SQL, 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, conn, Cursor, 2 If Err.Number <> 0 Then Exit Function Set GetOtherRs = rs End Function '--------------------------------------------------- Function GetSQLServerRs( Computer, UserID, Password, Db, source, Cursor ) Dim conn, rs On Error Resume Next Set GetSQLServerRs = Nothing Set conn = GetSQLServerConnection( Computer, UserID, Password, Db ) If conn Is Nothing Then Exit Function Set rs = Server.CreateObject("ADODB.Recordset") If Err.Number <> 0 Then Exit Function rs.Open source, conn, Cursor, 2 If Err.Number <> 0 Then Exit Function Set GetSQLServerRs = rs End Function %> 使用方法是――复制下来存成一个文件，然后用#Include “文件名”就可以调用里面的子程序了。 有什么问题可以一起探讨！！！