.NET平台下使用C#连接各种数据库

在.NET平台下，通常我们需要连接不同的数据库，这就需要我们配置连接字符串以及提供常用的class进行数据存取。

1.C#连接Access

@"Provider=Microsoft.ACE.OLEDB.12.0;data source='F:\Code\codebase\introspection\introspection\Data\OriginalData.accdb'"

public class OleDbDataSourceProvider : DbDataSourceProvider     {         /// <summary>         /// connection string is just like "Provider=Microsoft.ACE.OLEDB.12.0;data source='F:\Code\codebase\introspection\introspection\Data\OriginalData.accdb'"         /// </summary>         /// <param name="connectionString"></param>         public OleDbDataSourceProvider(string connectionString)             : base(connectionString)         { }           public override DbConnection GetDbConnection()         {             return new OleDbConnection(this.ConnectionString);         }           public override DataAdapter CreateAdapter(string query, DbConnection connection)         {             return new OleDbDataAdapter(query, connection as OleDbConnection);         }     }

 2.C#连接SQL Server 

@"Data Source=WSWINCNHZ0823;Initial Catalog=D:\SITES\TMS\SERVICES\DataService\APP_DATA\TMS.MDF;Integrated Security=True";

public class SqlDataSourceProvider : DbDataSourceProvider     {         /// <summary>         /// the connections string is just like @"Data Source=WSWINCNHZ0823;Initial Catalog=D:\SITES\TMS\SERVICES\DataService\APP_DATA\TMS.MDF;Integrated Security=True";         /// </summary>         /// <param name="connectionString"></param>         public SqlDataSourceProvider(string connectionString)             : base(connectionString)         {         }           public override DbConnection GetDbConnection()         {             var connection = new SqlConnection(this.ConnectionString);                         return connection;         }           public override DataAdapter CreateAdapter(string query, DbConnection connection)         {             return new SqlDataAdapter(query, connection as SqlConnection);         }     }

3.C#连接Oracle

public class OracleDataSourceProvider : DbDataSourceProvider     {         public OracleDataSourceProvider(string connectionString)             : base(connectionString)         { }           public override DbConnection GetDbConnection()         {             return new OracleConnection(this.ConnectionString);         }           public override DataAdapter CreateAdapter(string query, DbConnection connection)         {             return new OracleDataAdapter(query, connection as OracleConnection);         }     }

4.C#连接MySQL

Based on MySQLDriverCS	@"Data Source=test;Password=***;User ID=root;Location=localhost;Port=3306;Extended Properties="""
	public class MySqlDataSourceProvider : DbDataSourceProvider     {         public MySqlDataSourceProvider(string connectionString)             : base(connectionString)         { }           public override DbConnection GetDbConnection()         {             return new MySQLConnection(this.ConnectionString);         }           public override DataAdapter CreateAdapter(string query, DbConnection connection)         {             return new MySQLDataAdapter(query, connection as MySQLConnection);         }     }
Based on net connector	@"SERVER=localhost;DATABASE=sakila;UID=root;PASSWORD=626912";
	public class MySqlDataSourceProviderBasedOnNetConnector : DbDataSourceProvider     {         /// <summary>         /// this is based on net connector, connection string is just like @"SERVER=localhost;DATABASE=sakila;UID=root;PASSWORD=***"         /// </summary>         /// <param name="connectionString"></param>         public MySqlDataSourceProviderBasedOnNetConnector(string connectionString)             : base(connectionString)         { }           public override DbConnection GetDbConnection()         {             return new MySqlConnection(this.ConnectionString);         }           public override DataAdapter CreateAdapter(string query, DbConnection connection)         {             return new MySqlDataAdapter(query, connection as MySqlConnection);         }     }

 

5.C#连接IBM DB2

OleDbConnection1.Open();  //打开数据库连接  OleDbDataAdapter1.Fill(dataSet1,"Address");  //将得来的数据填入dataSet  DataGrid1.DataBind();  //绑定数据  OleDbConnection1.Close();  //关闭连接  //增加数据库数据 在Web Form上新增对应字段数量个数的TextBox，及一个button，为该按键增加Click响应事件代码如下： this.OleDbInsertCommand1.CommandText = "INSERTsintosADDRESS(NAME,  EMAIL, AGE, ADDRESS) VALUES  ('"+TextBox1.Text+"','"+TextBox2.Text+"','"+TextBox3.Text+"','"+TextBox4.Text+"')";  OleDbInsertCommand1.Connection.Open();  //打开连接  OleDbInsertCommand1.ExecuteNonQuery();  //执行该SQL语句  OleDbInsertCommand1.Connection.Close();  //关闭连接

6.C#连接SyBase

Provider=Sybase.ASEOLEDBProvider.2;Initial Catalog=数据库名;User ID=用户名;Data Source=数据源;Extended Properties="";Server Name=ip地址;Network Protocol=Winsock;Server Port Address=5000;

 7.C#连接Express

"Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\TMS.mdf;Integrated Security=True;User Instance=True"

public class SqlServerExpressDataSourceProvider : DbDataSourceProvider     {         /// <summary>         /// connection string is just like @"Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\TMS.mdf;Integrated Security=True;User Instance=True"         /// </summary>         /// <param name="connectionString"></param>         public SqlServerExpressDataSourceProvider(string connectionString)             : base(connectionString)         { }           public override DbConnection GetDbConnection()         {             return new SqlConnection(this.ConnectionString);         }           public override DataAdapter CreateAdapter(string query, DbConnection connection)         {             return new SqlDataAdapter(query, connection as SqlConnection);         }     }