ADO.Net数据库连接字符串、DbProviderFactory
一、ADO.Net数据库连接字符串
1、OdbcConnection(System.Data.Odbc)
(1)SQL Sever
标准安全:
" Driver={SQL Server}; Server=Aron1; Database=pubs; Uid=sa; Pwd=asdasd; "信任的连接:
" Driver={SQL Server}; Server=Aron1; Database=pubs; Trusted_Connection=yes; "
(2)SQL Native Client ODBC Driver(>=SQL Server 2005)
标准安全
" Driver={SQL Native Client}; Server=Aron1; Database=pubs; UID=sa; PWD=asdasd; "信任的连接
" Driver={SQL Native Client}; Server=Aron1; Database=pubs; Trusted_Connection=yes; " --Integrated Security=SSPI 等同于Trusted_Connection=yes
(3)Oracle:
新版本:
"Driver={Microsoft ODBC for Oracle}; Server=OracleServer.world; Uid=Username; Pwd=asdasd; "旧版本:
"Driver={Microsoft ODBC Driver for Oracle}; ConnectString=OracleServer.world; Uid=myUsername; Pwd=myPassword; "
(4)Access:
标准安全:
"Driver={Microsoft Access Driver (*.mdb)}; Dbq=C:\mydatabase.mdb; Uid=Admin; Pwd=; "
2、OleDbConnection(System.Data.OleDb)
(1)SQL Sever
标准安全:
" Provider=sqloledb; Data Source=Aron1; Initial Catalog=pubs; User Id=sa; Password=asdasd; "信任的连接:
" 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)
(2)SQL Native Client OLE DB Provider(>=SQL Server 2005)
标准安全:
" Provider=SQLNCLI; Server=Aron1; Database=pubs; UID=sa; PWD=asdasd; "信任的连接:
" Provider=SQLNCLI; Server=Aron1; Database=pubs; Trusted_Connection=yes; " --Integrated Security=SSPI 等同于Trusted_Connection=yes
(3)Oracle:
标准安全:
"Provider=msdaora; Data Source=MyOracleDB; User Id=UserName; Password=asdasd; "
This one's from Microsoft, the following are from Oracle标准安全:
"Provider=OraOLEDB.Oracle; Data Source=MyOracleDB; User Id=Username; Password=asdasd; "信任的连接:
"Provider=OraOLEDB.Oracle; Data Source=MyOracleDB; OSAuthent=1; "
(4)Access:
标准安全:
"Provider=Microsoft.Jet.OLEDB.4.0; Data Source=\somepath\mydb.mdb; User Id=admin; Password=; "
3、SqlConnection(Syste.Data.SqlClient) SQL专用
标准安全:
" Data Source=Aron1; Initial Catalog=pubs; User Id=sa; Password=asdasd; "
- 或者 -
" Server=Aron1; Database=pubs; User ID=sa; Password=asdasd; Trusted_Connection=False"信任的连接:
" Data Source=Aron1; Initial Catalog=pubs; Integrated Security=SSPI; "
- 或者 -
" Server=Aron1; Database=pubs; Trusted_Connection=True; " –(use serverName\instanceName as Data Source to use an specifik SQLServer instance, 仅仅适用于SQLServer2000)
4、OracleConnection(System.Data.OracleClient\Oracle.ManagedDataAccess.Client) Oracle专用
标准安全:
"Data Source=MyOracleDB; Integrated Security=yes; " --This one works only with Oracle 8i release 3 or later指定用户名和密码:
"Data Source=MyOracleDB; User Id=username; Password=passwd; Integrated Security=no; " --This one works only with Oracle 8i release 3 or later指定主机:
"Data Source=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)
(HOST=192.168.115.33) (PORT=1521)))(CONNECT_DATA=(SERVICE_NAME= testDemo)));
User Id=oracle_test; Password=oracle"
其中Oracle数据库服务器IP:192.168.115.33
ServiceName:testDemo
用户名:oracle_test
密码:oracle
二、利用DbProviderFactory创建各种ADO.Net对象
DbProviderFactory是一个工厂类,工厂类的作用提供其他一系列相互之间有关系的类。在这里,DbProviderFactory就自动生成了包括DbConnection、DbCommand、 DbDataAdapter等一系列数据库操作的相关类。
1、配置文件ConnectionString节:
<configuration>
<connectionStrings>
<add name="default" connectionString="server=localhost; user id=sa; password=******; database=northwind"
providerName="System.Data.SqlClient"/>
</connectionStrings>
</configuration>
2、利用DbProviderFactory类自动查找数据库的驱动
ConnectionStringSettings settings = ConfigurationManager.ConnectionStrings["default"];
DbProviderFactory provider = DbProviderFactories.GetFactory(settings.ProviderName);
3、利用DbProviderFactory类实例创建各种ADO.Net对象。
using (DbConnection conn = provider.CreateConnection())
{
conn.ConnectionString = settings.ConnectionString;
conn.Open();
DbCommand cmd = conn.CreateCommand();
cmd.CommandText = "Select top 10 * From ShortTermBill"; //使用DbDataAdapter
DbDataAdapter da = provider.CreateDataAdapter();
da.SelectCommand = cmd;
DataSet ds = new DataSet();
da.Fill(ds);
da.Dispose();
Console.WriteLine(ds.Tables[0].Rows[0]["BillCode"]); //使用DbDataReader
DbDataReader reader = cmd.ExecuteReader()
while (reader.Read())
{
Console.WriteLine(reader.GetString(0));
}
conn.Close();
}
最新文章
- css 之 文本缩进属性(text-indent)
- linux下tftp使用(转一些命令)
- 每天一道面试题(2):实现strncpy
- ArcGIS10中matplotlib画图时的中文设置
- 构建ASP.NET MVC4+EF5+EasyUI+Unity2.x注入的后台管理系统(40)-精准在线人数统计实现-【过滤器+Cache】
- 一次优化web项目的经历记录(三)
- java.lang.OutOfMemoryError: Java heap space错误及处理办法(收集整理、转)
- 嵌入式C开发人员的最好的0x10道笔试题
- SQL Server 优化存储过程的七种方法
- JavaScript高级程序设计:第九章
- 每天一个Linux命令(16)--which命令
- atlium designer 我画的pcb板到出元件清单, 里面显示 Board Stack Report
- 如何 distinct 只对一个字段有用,同时查出其他字段
- 一个随机验证码且不重复的小程序以及求随机输入一组数组中的最大值(Java)
- Python网络_UDP编程
- Java内存区域的划分和异常
- delphi 文件查找
- Notes of Daily Scrum Meeting(11.8)
- python中in在list和dict中查找效率比较
- aop注解 自定义切面的注解写法