袖珍数据库连接方式查询手册上袖珍数据库连接方式查询手册 下面的资料是平时使用到的一些数据库连接方式,可能不太全,但是可以用来当做资料查询,希望能够帮上大家的忙。
下面将简单介绍一下几种ADO连接方式:ODBC DSN,ODBC DSN-Less, OLE DB Provider,和"MS Remote" Provider. I.DSN
oConn.Open "DSN=AdvWorks; UID=Admin; PWD=;"
注意:从MDAC2.1开始就不能够在使用这样的方式了,就是只把DSN文件名放在ConnectString中。你必须同时使用DSN,UID,PWD标志。例如下面的方式在MDAC 2.1中将会出错:oConn.Open "AdvWorks" II.File DSN
oConn.Open "FILEDSN=\somepath\mydb.dsn; UID=Admin; PWD=;" III.ODBC DSN-Less Connections
a)ODBC Text Driver
oConn.Open "Driver={Microsoft Text Driver (*.txt; *.csv)}; Dbq=\somepath\;" & _
"Extensions=asc,csv,tab,txt; Persist Security Info=False"
注意:需要在SQL语句中指定使用到的文件名。例如:
oRs.Open "Select * From customer.csv", oConn, adOpenStatic, adLockReadOnly, adCmdText b)ODBC Driver for Access
i)普通安全模式:
oConn.Open "Driver={Microsoft Access Driver (*.mdb)};" & _
"Dbq=\somepath\mydb.mdb; Uid=Admin; Pwd=;" ii)如果使用了System database:
oConn.Open "Driver={Microsoft Access Driver (*.mdb)};" & _
"Dbq=\somepath\mydb.mdb; SystemDB=\somepath\mydb.mdw;", "admin", "" c)ODBC Driver for SQL Server
i)普通安全模式
oConn.Open "Driver={SQL Server}; Server=carl2;" & _
"Database=pubs; Uid=sa; Pwd=;" ii)使用信任安全模式:
oConn.Open "Driver={SQL Server}; Server=carl2;" & _
"Database=pubs; Uid=; Pwd=;" 注意:要使用空白的Uid和Pwd d)ODBC Driver for Oracle
i)使用现有的Oracle ODBC Driver from Microsoft:
oConn.Open "Driver={Microsoft ODBC for Oracle};" & _
"Server=OracleServer.world; Uid=demo; Pwd=demo;" ii)使用老版本的Oracle ODBC Driver from Microsoft:
oConn.Open "Driver={Microsoft ODBC Driver for Oracle};" & _
"ConnectString=OracleServer.world; Uid=demo; Pwd=demo;"
IV)使用微软的OLE DB Data Link Connections方式Data Link File (UDL)
a)使用绝对路径
oConn.Open "File Name=\somepath\pubs.udl;" b)使用相对路径
oConn.Open "File Name=pubs.udl;"
以上代码来自: SourceCode Explorer(源代码数据库)
复制时间: 2002-05-25 17:16:57
当前版本: 1.0.686
作者: Shawls
个人主页: Http://Shawls.Yeah.Net
E-Mail: [email protected]
QQ: 9181729
下面将简单介绍一下几种ADO连接方式:ODBC DSN,ODBC DSN-Less, OLE DB Provider,和"MS Remote" Provider. I.DSN
oConn.Open "DSN=AdvWorks; UID=Admin; PWD=;"
注意:从MDAC2.1开始就不能够在使用这样的方式了,就是只把DSN文件名放在ConnectString中。你必须同时使用DSN,UID,PWD标志。例如下面的方式在MDAC 2.1中将会出错:oConn.Open "AdvWorks" II.File DSN
oConn.Open "FILEDSN=\somepath\mydb.dsn; UID=Admin; PWD=;" III.ODBC DSN-Less Connections
a)ODBC Text Driver
oConn.Open "Driver={Microsoft Text Driver (*.txt; *.csv)}; Dbq=\somepath\;" & _
"Extensions=asc,csv,tab,txt; Persist Security Info=False"
注意:需要在SQL语句中指定使用到的文件名。例如:
oRs.Open "Select * From customer.csv", oConn, adOpenStatic, adLockReadOnly, adCmdText b)ODBC Driver for Access
i)普通安全模式:
oConn.Open "Driver={Microsoft Access Driver (*.mdb)};" & _
"Dbq=\somepath\mydb.mdb; Uid=Admin; Pwd=;" ii)如果使用了System database:
oConn.Open "Driver={Microsoft Access Driver (*.mdb)};" & _
"Dbq=\somepath\mydb.mdb; SystemDB=\somepath\mydb.mdw;", "admin", "" c)ODBC Driver for SQL Server
i)普通安全模式
oConn.Open "Driver={SQL Server}; Server=carl2;" & _
"Database=pubs; Uid=sa; Pwd=;" ii)使用信任安全模式:
oConn.Open "Driver={SQL Server}; Server=carl2;" & _
"Database=pubs; Uid=; Pwd=;" 注意:要使用空白的Uid和Pwd d)ODBC Driver for Oracle
i)使用现有的Oracle ODBC Driver from Microsoft:
oConn.Open "Driver={Microsoft ODBC for Oracle};" & _
"Server=OracleServer.world; Uid=demo; Pwd=demo;" ii)使用老版本的Oracle ODBC Driver from Microsoft:
oConn.Open "Driver={Microsoft ODBC Driver for Oracle};" & _
"ConnectString=OracleServer.world; Uid=demo; Pwd=demo;"
IV)使用微软的OLE DB Data Link Connections方式Data Link File (UDL)
a)使用绝对路径
oConn.Open "File Name=\somepath\pubs.udl;" b)使用相对路径
oConn.Open "File Name=pubs.udl;"
以上代码来自: SourceCode Explorer(源代码数据库)
复制时间: 2002-05-25 17:16:57
当前版本: 1.0.686
作者: Shawls
个人主页: Http://Shawls.Yeah.Net
E-Mail: [email protected]
QQ: 9181729
a)OLE DB Provider for ODBC Databases
i)Access (Jet):
oConn.Open "Provider=MSDASQL; Driver={Microsoft Access Driver (*.mdb)};" & _
"Dbq=\somepath\mydb.mdb; Uid=Admin; Pwd=;" ii)SQL Server:
oConn.Open "Provider=MSDASQL; Driver={SQL Server};" & _
"Server=carl2; Database=pubs; Uid=sa; Pwd=;" b)OLE DB Provider for Microsoft Jet (Access)
i)普通安全模式:
oConn.Open "Provider=Microsoft.Jet.OLEDB.4.0;" & _
"Data Source=\somepath\mydb.mdb; User Id=admin; Password=;" ii)如果使用了System database:
oConn.Open "Provider=Microsoft.Jet.OLEDB.4.0;" & _
"Data Source=\somepath\mydb.mdb; Jet OLEDB:System Database=system.mdw;", "admin", ""
注意:当使用OLE DB Provider4.0版本是,需要把MDB和MDW文件转换成4.0的数据库格式 iii)如果MDB需要一个数据库密码的话:
oConn.Open "Provider=Microsoft.Jet.OLEDB.4.0;" & _
"Data Source=\somepath\mydb.mdb; Jet OLEDB:Database Password=MyDbPassword;", "admin", "" c)OLE DB Provider for Excel Spreadsheet:
oConn.Open "Provider=Microsoft.Jet.OLEDB.4.0; Data Source=\somepath\expenses.xls;" & _
"Extended Properties=Excel 8.0;HDR=Yes;"
注意: "HDR=Yes"表示在第一行中是行标题,在provider中将不把第一行包括入recordset中 d)OLE DB Provider for SQL Server
i)普通安全模式:
oConn.Open "Provider=sqloledb; Network Library=DBMSSOCN;" & _
"Data Source=carl2; Initial Catalog=pubs; User Id=sa; Password=;" ii)使用信任安全模式:
oConn.Open "Provider=sqloledb; Network Library=DBMSSOCN;" & _
"Data Source=carl2; Initial Catalog=pubs; Trusted_Connection=yes;"
注意:"Network Library=DBMSSOCN"声明OLE DB使用TCP/IP替代Named Pipes. e)OLE DB Provider for Oracle
oConn.Open "Provider=msdaora; Data Source=OracleServer.world;" & _
"User Id=sa; Password=;" (VI)Remote OLE DB Provider Connections方式(就是RDS方式):
a)MS Remote - Access (Jet)
i)ODBC DSN:
oConn.Open "Remote Server=http://carl2; Remote Provider=MSDASQL;" & _
"DSN=AdvWorks; Uid=admin; Pwd=;" ii)OLE DB Provider:
oConn.Open "Provider=MS Remote; Remote Server=http://carl2;" & _
"Remote Provider=Microsoft.Jet.OLEDB.4.0; Data Source=\somepath\mydb.mdb;", "admin", "" iii)OLE DB Provider自定义事务对象
oConn.Open "Provider=MS Remote; Remote Server=http://carl2;" & _
"Handler=MSDFMAP.Handler; Data Source=MyAdvworksOLEDBConnectTag;" b)MS Remote - SQL Server
i)ODBC DSN:
oConn.Open "Remote Server=http://carl2; Remote Provider=MSDASQL;" & _
"Network Library=DBMSSOCN; DSN=Pubs; Uid=sa; Pwd=;" ii)OLE DB Provider
oConn.Open "Provider=MS Remote; Remote Server=http://carl2;" & _
"Remote Provider=SQLOLEDB; Network Library=DBMSSOCN;" & _
"Data Source=carl2; Initial Catalog=pubs; User ID=sa; Password=;"
以上代码来自: SourceCode Explorer(源代码数据库)
复制时间: 2002-05-25 17:17:05
当前版本: 1.0.686
作者: Shawls
个人主页: Http://Shawls.Yeah.Net
E-Mail: [email protected]
QQ: 9181729
dim Cnn as new adodb.connectionCnnString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & _
数据库路径也名称 &";Persist Security Info=FalseCnn.CursorLocation = adUseClient"Cnn.CommandTimeout = 30
cnn.open cnnstring
http://jinesc.6600.org/myweb/disp.asp?idd=91&room=40
再在程序中连上这个 数据源
dim rs as new ADODB.RecordSet
dim cn as new ADODB.Connection
dim ssql as string
cn.open "数据源名","密码"
sql="sql语句 "
set rs=cn.execute(sql)
Public cnn As New ADODB.Connection
cnn.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=数据库路径;Persist Security Info=False"
cnn.Open
rst.Open "select * from 表", cnn, adOpenStatic, adLockPessimistic