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;"
If RsContract.State = adStateOpen Then RsContract.Close End If RsContract.Open "Contract", DBCON, adOpenKeyset, adLockPessimistic, adcmdtalbe Call FormTxtValue2 If RsContractCustomer.State = adStateOpen Then RsContractCustomer.Close End If RsContractCustomer.Open "Customer", DBCON, adOpenKeyset, adLockPessimistic, adcmdtalbe 运行提示不能在些环境操作?
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;"
RsContract.Close
End If
RsContract.Open "Contract", DBCON, adOpenKeyset, adLockPessimistic, adcmdtalbe
Call FormTxtValue2
If RsContractCustomer.State = adStateOpen Then
RsContractCustomer.Close
End If
RsContractCustomer.Open "Customer", DBCON, adOpenKeyset, adLockPessimistic, adcmdtalbe
运行提示不能在些环境操作?
DBCON.Open