双11狂欢大促

盲盒赢 定制羽绒服

开启惊喜盲盒，抽取你的专属好礼

— 惊喜奖品抢先看 —

超级年卡50元券

周边70元券

手机支架

一拖三数据线

雨伞

运动毛巾

电动牙刷

VIP月卡

机械键盘

定制羽绒服

超级年卡50元券

周边70元券

手机支架

一拖三数据线

雨伞

运动毛巾

电动牙刷

VIP月卡

机械键盘

定制羽绒服

asp.net中关于数据库的连接问题(急!)

2003-10-10 12:46:28 187 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

yiyangfly 墨衍会员 · AI 创作全网分发关注 + 加入社区

STM32--基于STM32F103C8T6的OV7670摄像头显示使用 STM32F103C8T6 微控制器驱动 OV7670 摄像头模组，并将图像数据显示在屏幕上，是嵌入式系统中常见的图像采集与显示应用。OV7670 是一款 CMOS VGA 图像传感器，具有高灵敏度、低电压等特点，适用于嵌入式应用。而 STM32F103C8T6 是一款常用的 MCU 控制器，具有丰富的管脚资源和较高的工作频率。阅读详情

我刚学ASP.NET,什么环境都装了,可是在程序运行到有数据库连接的地方就出现错误,这是怎么回事啊.
错误示例:myDSCommand=New ADODataSetCommand(sql,"Provider=Microsoft.Jet.OleDB.4.0;Data Source=num.mdb")

...全文

Android架构中UseCase的设计原则与实战解析本文深入解析Android架构中UseCase的设计原则与实战应用，探讨其在Domain Layer中的核心作用。通过对比ViewModel的臃肿问题，详细阐述UseCase的无状态原则、单一职责边界等设计铁律，并提供多种实现方式的代码示例，帮助开发者构建更清晰、高效的Android应用架构。阅读详情

yiyangfly

.NET社区 62,274 成员 668,968 内容

+ 关注 + 加入社区

切换为时间正序

树猫 2003-10-10

打赏
举报

Oracle
ODBC
New version:
"Driver={Microsoft ODBC for Oracle};Server=OracleServer.world;Uid=Username;Pwd=asdasd;"
Old version:
"Driver={Microsoft ODBC Driver for Oracle};ConnectString=OracleServer.world;Uid=myUsername;Pwd=myPassword;"
OLEDB, OleDbConnection (.NET)
Standard security:
"Provider=msdaora;Data Source=MyOracleDB;User Id=UserName;Password=asdasd;"
This one's from Microsoft, the following are from Oracle
Standard Security:
"Provider=OraOLEDB.Oracle;Data Source=MyOracleDB;User Id=Username;Password=asdasd;"
Trusted Connection:
"Provider=OraOLEDB.Oracle;Data Source=MyOracleDB;OSAuthent=1;"
OracleConnection (.NET)
Standard:
"Data Source=Oracle8i;Integrated Security=yes";
This one works only with Oracle 8i release 3 or later
Declare the OracleConnection:
C#:
using System.Data.OracleClient;
OracleConnection oOracleConn = new OracleConnection();
oOracleConn.ConnectionString = "my connectionstring";
oOracleConn.Open();
VB.NET:
Imports System.Data.OracleClient
Dim oOracleConn As OracleConnection = New OracleConnection()
oOracleConn.ConnectionString = "my connectionstring"
oOracleConn.Open()
Data Shape
MS Data Shape:
"Provider=MSDataShape.1;Persist Security Info=False;Data Provider=MSDAORA;Data Source=orac;user id=username;password=mypw"
MySQL
ODBC
Local database:
"Driver={mySQL};Server=mySrvName;Option=16834;Database=mydatabase;"
Remote database:
"Driver={mySQL};Server=data.domain.com;Port=3306;Option=131072;Stmt=;Database=my-database;Uid=username;Pwd=password;"
OLEDB, OleDbConnection (.NET)
Standard:
"Provider=MySQLProv;Data Source=mydb;User Id=UserName;Password=asdasd;"
MySqlConnection (.NET)
EID:
"Data Source=server;Database=mydb;User ID=username;Password=pwd;Command Logging=false"
This one is used with eInfoDesigns dbProvider, an add-on to .NET
Declare the MySqlConnection:
C#:
using EID.MySqlClient;
MySqlConnection oMySqlConn = new MySqlConnection();
oMySqlConn.ConnectionString = "my connectionstring";
oMySqlConn.Open();
VB.NET:
Imports EID.MySqlClient
Dim oMySqlConn As MySqlConnection = New MySqlConnection()
oMySqlConn.ConnectionString = "my connectionstring"
oMySqlConn.Open()
IBM DB2
OLEDB, OleDbConnection (.NET) from ms
TCP/IP:
"Provider=DB2OLEDB;Network Transport Library=TCPIP;Network Address=XXX.XXX.XXX.XXX;Initial Catalog=MyCtlg;Package Collection=MyPkgCol;Default Schema=Schema;User ID=MyUser;Password=MyPW"
APPC:
"Provider=DB2OLEDB;APPC Local LU Alias=MyAlias;APPC Remote LU Alias=MyRemote;Initial Catalog=MyCtlg;Package Collection=MyPkgCol;Default Schema=Schema;User ID=MyUser;Password=MyPW"
Sybase
ODBC
Standard:
"Driver={SYBASE SYSTEM 11};Srvr=Aron1;Uid=username;Pwd=password;"
Intersolv 3.10:
"Driver={INTERSOLV 3.10 32-BIT Sybase};Srvr=Aron1;Uid=username;Pwd=password;"
Informix
ODBC
Informix 3.30:
"Dsn='';Driver={INFORMIX 3.30 32 BIT};Host=hostname;Server=myserver;Service=service-name;Protocol=olsoctcp;Database=mydb;UID=username;PWD=myPwd
Informix-CLI 2.5:
"Driver={Informix-CLI 2.5 (32 Bit)};Server=myserver;Database=mydb;Uid=username;Pwd=myPwd"
DSN
ODBC
DSN:
"DSN=myDsn;Uid=username;Pwd=;"
File DSN:
"FILEDSN=c:\myData.dsn;Uid=username;Pwd=;"
Excel
ODBC
Standard:
"Driver={Microsoft Excel Driver (*.xls)};DriverId=790;Dbq=C:\MyExcel.xls;DefaultDir=c:\mypath;"
OLE DB
Standard:
"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\MyExcel.xls;Extended Properties=Excel 8.0;HDR=Yes;"
"HDR=Yes;" indicates that the first row contains columnnames, not data
DBF / FoxPro
ODBC
standard:
"Driver={Microsoft dBASE Driver (*.dbf)};DriverID=277;Dbq=c:\mydbpath;"
OLEDB, OleDbConnection (.NET)
standard:
"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=c:\folder;Extended Properties=dBASE IV;User ID=Admin;Password="
Pervasive
ODBC
Standard:
"Driver={Pervasive ODBC Client Interface};ServerName=srvname;dbq=@dbname"
UDL
UDL
UDL:
"File Name=c:\myDataLink.udl;"

树猫 2003-10-10

打赏
举报

.NET中各种数据库连接大全
2003-1-20 动网先锋
SQL Server
ODBC
Standard Security:
"Driver={SQL Server};Server=Aron1;Database=pubs;Uid=sa;Pwd=asdasd;"
Trusted connection:
"Driver={SQL Server};Server=Aron1;Database=pubs;Trusted_Connection=yes;"
Prompt for username and password:
oConn.Properties("Prompt") = adPromptAlways
oConn.Open "Driver={SQL Server};Server=Aron1;DataBase=pubs;"
OLEDB, OleDbConnection (.NET)
Standard Security:
"Provider=sqloledb;Data Source=Aron1;Initial Catalog=pubs;User Id=sa;Password=asdasd;"
Trusted Connection:
"Provider=sqloledb;Data Source=Aron1;Initial Catalog=pubs;Integrated Security=SSPI;"
(use serverName\instanceName as Data Source to use an specifik SQLServer instance, only SQLServer2000)
Prompt for username and password:
oConn.Provider = "sqloledb"
oConn.Properties("Prompt") = adPromptAlways
oConn.Open "Data Source=Aron1;Initial Catalog=pubs;"
Connect via an IP address:
"Provider=sqloledb;Data Source=190.190.200.100,1433;Network Library=DBMSSOCN;Initial Catalog=pubs;User ID=sa;Password=asdasd;"
(DBMSSOCN=TCP/IP instead of Named Pipes, at the end of the Data Source is the port to use (1433 is the default))
SqlConnection (.NET)
Standard Security:
"Data Source=Aron1;Initial Catalog=pubs;User Id=sa;Password=asdasd;"
Trusted Connection:
"Data Source=Aron1;Initial Catalog=pubs;Integrated Security=SSPI;"
(use serverName\instanceName as Data Source to use an specifik SQLServer instance, only SQLServer2000)
Connect via an IP address:
"Data Source=190.190.200.100,1433;Network Library=DBMSSOCN;Initial Catalog=pubs;User ID=sa;Password=asdasd;"
(DBMSSOCN=TCP/IP instead of Named Pipes, at the end of the Data Source is the port to use (1433 is the default))
Declare the SqlConnection:
C#:
using System.Data.SqlClient;
SqlConnection oSQLConn = new SqlConnection();
oSQLConn.ConnectionString="my connectionstring";
oSQLConn.Open();
VB.NET:
Imports System.Data.SqlClient
Dim oSQLConn As SqlConnection = New SqlConnection()
oSQLConn.ConnectionString="my connectionstring"
oSQLConn.Open()
Data Shape
MS Data Shape
"Provider=MSDataShape;Data Provider=SQLOLEDB;Data Source=Aron1;Initial Catalog=pubs;User ID=sa;Password=asdasd;"
Read more
How to define wich network protocol to use
Example:
"Provider=sqloledb;Data Source=190.190.200.100,1433;Network Library=DBMSSOCN;Initial Catalog=pubs;User ID=sa;Password=asdasd;"
Name Network library
dbnmpntw Win32 Named Pipes
dbmssocn Win32 Winsock TCP/IP
dbmsspxn Win32 SPX/IPX
dbmsvinn Win32 Banyan Vines
dbmsrpcn Win32 Multi-Protocol (Windows RPC)
Important note!
When connecting through the SQLOLEDB provider use the syntax Network Library=dbmssocn
and when connecting through MSDASQL provider use the syntax Network=dbmssocn
All SqlConnection connectionstring properties
This table shows all connectionstring properties for the ADO.NET SqlConnection object. Most of the properties are also used in ADO. All properties and descriptions is from msdn.
Name Default Description
Application Name The name of the application, or '.Net SqlClient Data Provider' if no application name is provided.
AttachDBFilename
-or-
extended properties
-or-
Initial File Name The name of the primary file, including the full path name, of an attachable database. The database name must be specified with the keyword 'database'.
Connect Timeout
-or-
Connection Timeout 15 The length of time (in seconds) to wait for a connection to the server before terminating the attempt and generating an error.
Connection Lifetime 0 When a connection is returned to the pool, its creation time is compared with the current time, and the connection is destroyed if that time span (in seconds) exceeds the value specified by connection lifetime. Useful in clustered configurations to force load balancing between a running server and a server just brought on-line.
Connection Reset 'true' Determines whether the database connection is reset when being removed from the pool. Setting to 'false' avoids making an additional server round-trip when obtaining a connection, but the programmer must be aware that the connection state is not being reset.
Current Language The SQL Server Language record name.
Data Source
-or-
Server
-or-
Address
-or-
Addr
-or-
Network Address The name or network address of the instance of SQL Server to which to connect.
Enlist 'true' When true, the pooler automatically enlists the connection in the creation thread's current transaction context.
Initial Catalog
-or-
Database The name of the database.
Integrated Security
-or-
Trusted_Connection 'false' Whether the connection is to be a secure connection or not. Recognized values are 'true', 'false', and 'sspi', which is equivalent to 'true'.
Max Pool Size 100 The maximum number of connections allowed in the pool.
Min Pool Size 0 The minimum number of connections allowed in the pool.
Network Library
-or-
Net 'dbmssocn' The network library used to establish a connection to an instance of SQL Server. Supported values include dbnmpntw (Named Pipes), dbmsrpcn (Multiprotocol), dbmsadsn (Apple Talk), dbmsgnet (VIA), dbmsipcn (Shared Memory) and dbmsspxn (IPX/SPX), and dbmssocn (TCP/IP).
The corresponding network DLL must be installed on the system to which you connect. If you do not specify a network and you use a local server (for example, "." or "(local)"), shared memory is used.
Packet Size 8192 Size in bytes of the network packets used to communicate with an instance of SQL Server.
Password
-or-
Pwd The password for the SQL Server account logging on.
Persist Security Info 'false' When set to 'false', security-sensitive information, such as the password, is not returned as part of the connection if the connection is open or has ever been in an open state. Resetting the connection string resets all connection string values including the password.
Pooling 'true' When true, the SQLConnection object is drawn from the appropriate pool, or if necessary, is created and added to the appropriate pool.
User ID The SQL Server login account.
Workstation ID the local computer name The name of the workstation connecting to SQL Server.
Note
Use ; to separate each property.
If a name occurs more than once, the value from the last one in the connectionstring will be used.
If you are building your connectionstring in your app using values from user input fields, make sure the user can't change the connectionstring by inserting an additional property with another value within the user value.
Access
ODBC
Standard Security:
"Driver={Microsoft Access Driver (*.mdb)};Dbq=\somepath\mydb.mdb;Uid=Admin;Pwd=asdasd;"
Workgroup:
"Driver={Microsoft Access Driver (*.mdb)};Dbq=\somepath\mydb.mdb;SystemDB=\somepath\mydb.mdw;","admin", ""
OLEDB, OleDbConnection (.NET)
Standard security:
"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=\somepath\mydb.mdb;User Id=admin;Password=asdasd;"
Workgroup (system database):
"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=\somepath\mydb.mdb;Jet OLEDB:System Database=system.mdw;","admin", ""
With password:
"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=\somepath\mydb.mdb;Jet OLEDB:Database Password=MyDbPassword;","admin", ""

树猫 2003-10-10

打赏
举报

ADODataSetCommand ??有这东西吗？

OleDbConnection

比尔咔咔 2003-10-10

打赏
举报

Data Source=num.mdb
你放哪里了
用工具箱里得控件向导生成一个连接string 在copy 回代码来看看

conquersky 2003-10-10

打赏
举报

点击管理！我可以的点分吧？

yiyangfly 2003-10-10

打赏
举报

还有,我第一次来这里用这个东西,怎么给分啊

yiyangfly 2003-10-10

打赏
举报

<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.ADO" %>
<html>
<Script Language="VB" runat=Server>
Sub Page_load(Sender As Object,e As EventArgs)
dim sql As String="select * from thing;"
dim mydataset As New DataSet
dim mydatatable As New DataTable
dim iRows,iLoop As Integer
myDSCommand=New ADODataSetCommand(sql,"Provider=Microsoft.Jet.OleDB.4.0;Data Source=num.mdb")
myDSCommand.FillDataSet(mydataset,"Table1")
mydatatable=myDSCommand.Tables("Table1")
iRows=mydatatable.Rows.Count
if iRows=0 then response.write("无数据可显示")
else for iLoop=0 to iRows-1
response.write(mydatatable.Rows(iLoop).Item("id")&""&mydatatable.Rows(iLoop).Item("t_name")&"<br>")
Next iLoop
end if
end sub
</script>
</html>
这是我写的代码

zsww 2003-10-10

打赏
举报

首先没有 ADODataSetCommand 对象

你用ACCESS数据库的话就要用 OleDbConnection

strConn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" Intranet.mdb"
strSQL = "SELECT DEP01, DEP02 FROM Dept ORDER BY DEP01"
myConn = New OledbConnection(strConn)

-----------努力学习不断实践虚心讨教---------

yuewenbin 2003-10-10

打赏
举报

SqlConnection cn = new SqlConnection("Provider=Microsoft.Jet.OleDB.4.0;Data Source=num.mdb")
cn.Open();
SqlCommand cm = new SqlCommand("Select * From Table",cn);
SqlDataReader dr = cm.ExecuteDataReader();
if(dr.Read())
{

}

✦双11狂欢大促✦

asp.net中关于数据库的连接问题(急!)

相关推荐

双11狂欢大促