比较凌乱，有时间在整理吧。
1 Provider=Microsoft.Jet.OLEDB.4.0;Persist Security Info=False;Data source=c:/D.mdb;Jet OLEDB:DataBase Password=123456!" 2 3 4 private void GetCon() 5 { 6 string strConnection="PRovider=Microsoft.Jet.OleDb.4.0;"; 7 strConnection+=@"Data Source=C:BegaspNETNorthwind.mdb"; 8 9 OleDbConnection objConnection=new OleDbConnection(strConnection); 10 11 12 objConnection.Open(); 13 objConnection.Close(); 14 15 }
以独占的方式打开
文件--信息--加密/解密
PRovider=Microsoft.Jet.OleDb.4.0;Jet OLEDB:DataBase Password=123456789;Data Source=D:ToWife.mdb; 1. set dbconnection=Server.CREATEOBJECT("ADODB.CONNECTION") DBPath = Server.MapPath("customer.mdb") dbconnection.Open "driver={Microsoft Access Driver (*.mdb)};dbq=" & DBPath SQL="select * from auth where id="" & user_id &""" SET uplist=dbconnection.EXECUTE(SQL) 2. set dbconnection=Server.CreateObject("ADODB.Connection") DBPath = Server.MapPath("customer.mdb") dbconnection.Open "provider=microsoft.jet.oledb.4.0;data source="&dbpath SQL="select * from auth where id="" & user_id &""" SET uplist=dbconnection.EXECUTE(SQL) 3. DBPath = Server.MapPath("customer.mdb") set session("rs")=Server.CreateObject("ADODB.Recordset") " rs=Server.CreateObject("ADODB.Recordset") connstr="provider=microsoft.jet.oledb.4.0;data source="&dbpath SQL="select * from auth where id="" & user_id &""" session("rs").Open sql,connstr,1,3
连接access2007
1 OleDbConnection con = new OleDbConnection(@"Provider=Microsoft.ACE.OLEDB.12.0;User ID=Admin;Data Source=D:/数据库.accdb;Jet OLEDB:Database Password=123456;
连接access2003
OleDbConnection con = new OleDbConnection(@"Provider=Microsoft.Jet.OLEDB.4.0;User ID=Admin";Data Source=D:/数据库.mdb;Jet OLEDB:Database password=123456;")
建odbc源
set conn=server.createobject("Adodb.connection") conn.open "DSN=xxx;UID=;PWD=123456;Database=XXX"
破解密码
1 public static string GetMDBPassword(string file) 2 { 3 // 未加密的MDB文件，0x42到0x61之间的每间隔一字节的数值 4 byte[] baseByte = { 0xbe, 0xec, 0x65, 0x9c, 0xfe, 0x28, 0x2b, 0x8a, 0x6c, 0x7b, 0xcd, 0xdf, 0x4f, 0x13, 0xf7, 0xb1, }; 5 byte flagByte = 0x0c; // 标志 0x62 处的数值 6 string password = ""; 7 try 8 { 9 FileStream fs = File.OpenRead(file); 10 fs.Seek(0x14, SeekOrigin.Begin); 11 byte ver = (byte)fs.ReadByte(); // 取得access版本, 1为Access2000/2003, 0为Access97 12 fs.Seek(0x42, SeekOrigin.Begin); 13 byte[] bs = new byte[33]; 14 if (fs.Read(bs, 0, 33) != 33) return ""; 15 byte flag = (byte)(bs[32] ^ flagByte); 16 for (int i = 0; i < 16; i++) 17 { 18 byte b = (byte)(baseByte[i] ^ bs[i * 2]); 19 if (i % 2 == 0 && ver == 1) b ^= flag; //Access 2000/2003 20 if (b > 0) password += (char)b; 21 } 22 } 23 catch { } 24 25 return ( password.Equals( "" ) ? "没有密码!" : password ); 26 }
up
1 private int up(string sql) 2 { 3 int index = 0; 4 OleDbConnection con = GetCon(); 5 try 6 { 7 if (con!=null) 8 { 9 con.Open(); 10 OleDbCommand oc = new OleDbCommand(sql, con); 11 return oc.ExecuteNonQuery(); 12 } 13 return 0; 14 } 15 catch (Exception) 16 { 17 return 0; 18 } 19 }
select
1 private DataTable select(string sql) 2 { 3 DataTable dt = new DataTable(); 4 OleDbConnection con = GetCon(); 5 try 6 { 7 if (con!=null) 8 { 9 con.Open(); 10 //用 OleDbDataAdapter 得到一个数据集 11 OleDbDataAdapter myCommand = new OleDbDataAdapter(sql,con); 12 DataSet myDataSet = new DataSet(); 13 //把Dataset绑定books数据表 14 myCommand.Fill(myDataSet); 15 con.Close(); 16 return myDataSet.Tables[0]; 17 } 18 con.Close(); 19 return null; 20 } 21 catch (Exception) 22 { 23 con.Close(); 24 return null; 25 } 26 }
主键的操作 Function AddPrimaryKey() '添加主键到[编号]字段 Dim strSQL As String strSQL = "ALTER TABLE 表1 ADD CONSTRAINT PRIMARY_KEY " _ & "PRIMARY KEY (编号)" CurrentProject.Connection.Execute strSQL End Function Function DropPrimaryKey() '删除主键 Dim strSQL As String strSQL = "ALTER TABLE 表1 Drop CONSTRAINT PRIMARY_KEY " CurrentProject.Connection.Execute strSQL End Function