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C# İle Veritabanlarına Bağlantı Yapmak

C# İle Veritabanlarına Bağlantı Yapmak

Ağustos 23, 2023

Okuma süresi: 12 dakika

Sizler için C# ile bir çok veri tabanına bağlantı yapabilmeniz için bağlantı cümlelerini bir araya getirdim. Makale içinde bulunan veritabanları şunlardır:

  •  MS SQL Server,
  • MS SQL Express,
  • MS Access, Oracle,
  • IBM DB2,
  • MySql,
  • Sybase,
  • Interbase,
  • Informix,
  • Excel,
  • Text,
  • dBase Dbf,
  • Visual FoxPro .

 

Umarım faydasını görürsünüz.

 

  1. Microsoft SQL Server​
  • ODBC DSN
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString =
              "Dsn=DsnName;" +
              "Uid=UserName;" +
              "Pwd=Secret;";
conn.Open();
  • ODBC -- Standard Connection
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString =
              "Driver={SQL Server};" +
              "Server=DataBaseNamex;" +
              "DataBase=DataBaseName;" +
              "Uid=UserName;" +
              "Pwd=Secret;";
conn.Open();
  • ODBC -- Trusted Connection
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString =
              "Driver={SQL Server};" +
              "Server=ServerName;" +
              "DataBase=DataBaseName;" +
              "Uid=;" +
              "Pwd=;";
conn.Open();
// or
var conn = new OdbcConnection();
conn.ConnectionString =
              "Driver={SQL Server};" +
              "Server=ServerName;" +
              "DataBase=DataBaseName;" +
              "Trusted_Connection=Yes;";
conn.Open();
  • OleDb -- Standard Connection
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using System.Data.OleDb;
var conn = new OleDbConnection();
conn.ConnectionString =
              "Driver=SQLOLEDB;" +
              "Data Source=ServerName;" +
              "Initial Catalog=DataBaseName;" +
              "User id=UserName;" +
              "Password=Secret;";
conn.Open();
  • OleDb -- Trusted Connection
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using System.Data.OleDb;
var conn = new OleDbConnection();
conn.ConnectionString =
              "Driver=SQLOLEDB;" +
              "Data Source=ServerName;" +
              "Initial Catalog=DataBaseName;" +
              "Integrated Security=SSPI;";
conn.Open();
  • OleDb -- via IP Address
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using System.Data.OleDb;
var conn = new OleDbConnection();
conn.ConnectionString =
              "Driver=SQLOLEDB;" +
              "Network Library=DBMSSOCN;" +
              "Data Source=xxx.xxx.xxx.xxx,1433;" +
              "Initial Catalog=DataBaseName;" +
              "User id=UserName;" +
              "Password=Secret;";
conn.Open();
  • .NET DataProvider -- Standard Connection
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using System.Data.SqlClient;
var conn = new SqlDbConnection();
conn.ConnectionString =
              "Data Source=ServerName;" +
              "Initial Catalog=DataBaseName;" +
              "User id=UserName;" +
              "Password=Secret;";
conn.Open();
  • .NET DataProvider -- Trusted Connection
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using System.Data.SqlClient;
var conn = new SqlConnection();
conn.ConnectionString =
              "Data Source=ServerName;" +
              "Initial Catalog=DataBaseName;" +
              "Integrated Security=SSPI;";
conn.Open();
  • .NET DataProvider -- via IP Address
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using System.Data.SqlClient;
var conn = new SqlConnection();
conn.ConnectionString =
              "Network Library=DBMSSOCN;" +
              "Data Source=xxx.xxx.xxx.xxx,1433;" +
              "Initial Catalog=DataBaseName;" +
              "User Id=UserName;" +
              "Password=Secret;";
conn.Open();

  1. Microsoft Sql Express

  • .NET Data Provider -- Default Relative Path -- Standard Connection
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using System.Data.SqlClient;
var conn = new SqlConnection();
conn.ConnectionString =
     "Data Source=.\SQLExpress;" +
     "User Instance=true;" +
     "User Id=UserName;" +
     "Password=Secret;" +
     "AttachDbFilename=|DataDirectory|DataBaseName.mdf;"
conn.Open();
  • .NET Data Provider -- Default Relative Path -- Trusted Connection
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using System.Data.SqlClient;
var conn = new SqlConnection();
conn.ConnectionString =
     "Data Source=.\SQLExpress;" +
     "User Instance=true;" +
     "Integrated Security=true;" +
     "AttachDbFilename=|DataDirectory|DataBaseName.mdf;"
conn.Open();
  • .NET Data Provider -- Custom Relative Path -- Standard Connection
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using System.Data.SqlClient;
AppDomain.CurrentDomain.SetData(
     "DataDirectory", "C:\MyPath\");
var conn = new SqlConnection();
conn.ConnectionString =
     "Data Source=.\SQLExpress;" +
     "User Instance=true;" +
     "User Id=UserName;" +
     "Password=Secret;" +
     "AttachDbFilename=|DataDirectory|DataBaseName.mdf;"
conn.Open();
  • .NET Data Provider -- Custom Relative Path -- Trusted Connection
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using System.Data.SqlClient;
AppDomain.CurrentDomain.SetData(
     "DataDirectory", "C:\MyPath\");
var conn = new SqlConnection();
conn.ConnectionString =
     "Data Source=.\SQLExpress;" +
     "User Instance=true;" +
     "Integrated Security=true;" +
     "AttachDbFilename=|DataDirectory|DataBaseName.mdf;"
conn.Open();
  • .NET Data Provider -- Absolute Path -- Standard Connection
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using System.Data.SqlClient;
var conn = new SqlConnection();
conn.ConnectionString =
     "Data Source=.\SQLExpress;" +
     "User Instance=true;" +
     "User Id=UserName;" +
     "Password=Secret;" +
     "AttachDbFilename=C:\MyPath\DataBaseName.mdf;"
conn.Open();
  • .NET Data Provider -- Absolute Path -- Trusted Connection
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using System.Data.SqlClient;
var conn = new SqlConnection();
conn.ConnectionString =
     "Data Source=.\SQLExpress;" +
     "User Instance=true;" +
     "Integrated Security=true;" +
     "AttachDbFilename=C:\MyPath\DataBaseName.mdf;"
conn.Open();

 

  1. Microsoft Access

  • ODBC DSN
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString = "Dsn=DsnName";
conn.Open();
  • ODBC -- Standard Security
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString =
    "Driver={Microsoft Access Driver (*.mdb)};" +
    "Dbq=c:\myPath\myDb.mdb;" +
    "Uid=Admin;Pwd=;";
conn.Open();
  • ODBC -- Workgroup (System Database)
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString =
    "Driver={Microsoft Access Driver (*.mdb)};" +
    "Dbq=c:\myPath\myDb.mdb;" +
    "SystemDb=c:\myPath\myDb.mdw;";
conn.Open();
  • ODBC -- Exclusive Use
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString =
     "Driver={Microsoft Access Driver (*.mdb)};" +
     "Dbq=c:\myPath\myDb.mdb;" +
     "Exclusive=1;";
     "Uid=Admin;Pwd=;";
conn.Open();
  • OleDb with MS Jet -- Standard Security
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using System.Data.OleDb;
var conn = new OleDbConnection();
conn.ConnectionString =
           "Provider=Microsoft.Jet.OLEDB.4.0;" +
           "Data Source=c:\mypath\myDb.mdb;" +
           "User id=admin;" +
           "Password=";
conn.Open();
  • OleDb with MS Jet -- Workgroup (System Database)
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using System.Data.OleDb;
var conn = new OleDbConnection();
conn.ConnectionString =
           "Provider=Microsoft.Jet.OLEDB.4.0;" +
           "Data Source=c:\mypath\myDb.mdb;" +
           "System Database=c:\mypath\myDb.mdw;";
conn.Open();
  • OleDb with MS Jet -- With Password
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using System.Data.OleDb;
var conn = new OleDbConnection();
conn.ConnectionString =
           "Provider=Microsoft.Jet.OLEDB.4.0;" +
           "Data Source=c:\mypath\myDb.mdb;" +
           "Database Password=Secret;"
conn.Open();

 

  1. Oracle

 

  • ODBC DSN
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString =
              "Dsn=DsnName;" +
              "Uid=UserName;" +
              "Pwd=Secret;";
conn.Open();
  • ODBC -- New Microsoft Driver
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString =
           "Driver={Microsoft ODBC for Oracle};" +
           "Server=OracleServer.world;" +
           "Uid=UserName;" +
           "Pwd=Secret;";
conn.Open();
  • ODBC -- Old Microsoft Driver
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString =
    "Driver={Microsoft ODBC Driver for Oracle};" +
    "ConnectString=OracleServer.world;" +
    "Uid=UserName;" +
    "Pwd=Secret;";
conn.Open();
  • ODBC -- Oracle Driver
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString =
    "Driver={Oracle ODBC Driver};" +
    "Dbq=myDataBase;" + // define in tsnames.ora
    "Uid=UserName;" +
    "Pwd=Secret;";
conn.Open();
  • OleDb -- Microsoft Driver
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using System.Data.OleDb;
var conn = new OleDbConnection();
conn.ConnectionString =
              "Driver=MSDAORA;" +
              "Data Source=ServerName;" +
              "User id=UserName;" +
              "Password=Secret;";
conn.Open();
  • OleDb -- Oracle Driver -- Standard Connection
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using System.Data.OleDb;
var conn = new OleDbConnection();
conn.ConnectionString =
              "Driver=OraOLEDB.Oracle;" +
              "Data Source=ServerName;" +
              "User id=UserName;" +
              "Password=Secret;";
conn.Open();
  • OleDb -- Oracle Driver -- Trusted Connection
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using System.Data.OleDb;
var conn = new OleDbConnection();
conn.ConnectionString =
              "Driver=OraOLEDB.Oracle;" +
              "Data Source=ServerName;" +
              "OSAuthent=1;";
conn.Open();
// or
using System.Data.OleDb;
var conn = new OleDbConnection();
conn.ConnectionString =
              "Driver=OraOLEDB.Oracle;" +
              "Data Source=ServerName;" +
              "User id=/" +
              "Password=;";
conn.Open();
  • .NET DataProvider from Microsoft -- Standard Connection
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using System.Data.OracleClient;
var conn = new OracleConnection();
conn.ConnectionString =
              "Data Source=ServerName;" +
              "User id=UserName;";
              "Password=Secret;";
conn.Open();
  • .NET DataProvider from Microsoft -- Trusted Connection
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using System.Data.OracleClient;
var conn = new OracleConnection();
conn.ConnectionString =
              "Data Source=Servername;" +
              "Integrated Security=Yes;";
conn.Open();
  • .NET DataProvider from Oracle -- Standard Connection
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using Oracle.DataAccess.Client;
var conn = new OracleConnection();
conn.ConnectionString =
              "Data Source=ServerName;" +
              "User id=UserName;";
              "Password=Secret;";
conn.Open();
  • .NET DataProvider from Oracle -- Trusted Connection
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using Oracle.DataAccess.Client;
var conn = new OracleConnection();
conn.ConnectionString =
              "Data Source=Servername;" +
              "Integrated Security=Yes;";
conn.Open();

 

 

  1. IBM DB2

  • ODBC DSN
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString =
              "Dsn=DsnName;" +
              "Uid=UserName;" +
              "Pwd=Secret;";
conn.Open();
  • ODBC without DSN
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString =
              "Driver={IBM DB2 ODBC DRIVER};" +
              "DataBase=DataBaseName;" +
              "HostName=ServerName;" +
              "Protocol=TCPIP;" +
              "Port=PortNumber;" +
              "Uid=UserName;" +
              "Pwd=Secret;";
conn.Open();
  • OleDb -- Microsoft Driver
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using System.Data.OleDb;
var conn = new OleDbConnection();
conn.ConnectionString =
           "Driver=DB2OLEDB;" +
           "Network Transport Library=TCPIP;" +
           "Network Address=xxx.xxx.xxx.xxx;" +
           "Package Collection=CollectionName;" +
           "Initial Catalog=DataBaseName;" +
           "User id=UserName;" +
           "Password=Secret;";
conn.Open();
  • OleDb -- IBM Driver
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using System.Data.OleDb;
var conn = new OleDbConnection();
conn.ConnectionString =
            "Driver=IBMDADB2;" +
            "DataBase=DataBaseName;" +
            "HostName=ServerName;" +
            "Protocol=TCPIP;" +
            "Port=PortNumber;" +
            "Uid=UserName;" +
            "Pwd=Secret;";
conn.Open();
  • .NET DataProvider from IBM
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using IBM.Data.DB2;
var conn = new Db2Connection();
conn.ConnectionString =
              "DataBase=DataBaseName;" +
              "Uid=UserName;" +
              "Pwd=Secret;" +
conn.Open()

 

 

  1. MySql

  • ODBC DSN
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString =
              "Dsn=DsnName;" +
              "Uid=UserName;" +
              "Pwd=Secret;";
conn.Open();
  • ODBC -- MyODBC Driver -- local database
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString =
            "Driver={MySql};" +
            "Server=localhost;" +
            "Option=16834;" +
            "DataBase=DataBaseName;"
conn.Open();
  • ODBC -- MyODBC Driver -- remote database
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString =
            "Driver={MySql};" +
            "Server=db.domain.com;" +
            "Option=131072;" +
            "Port=3306;" +
            "Stmt=;" +
            "DataBase=DataBaseName;" +
            "Uid=UserName;" +
            "Pwd=Secret;"
conn.Open();
  • ODBC -- MySQL ODBC 3.51 Driver
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString =
     "Driver={MySql ODBC 3.51 Driver};" +
     "Server=ServerName;" +
     "Option=16834;" +
     "Port=3306;" +
     "Stmt=;" +
     "DataBase=DataBaseName;" +
     "Uid=UserName;" +
     "Pwd=Secret;"
conn.Open();
// or
var conn = new OdbcConnection();
conn.ConnectionString =
     "DRIVER={MySql ODBC 3.51 Driver};" +
     "SERVER=ServerName;" +
     "DATABASE=DataBaseName;" +
     "USER=UserName;" +
     "PASSWORD=Secret;"
conn.Open();
  • OleDb
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using System.Data.OleDb;
var conn = new OleDbConnection();
conn.ConnectionString =
            "Provider=MySqlProv;" +
            "Data Source=ServerName;" +
            "User id=UserName;" +
            "Password=Secret;"
conn.Open();
  • .NET DataProvider from CoreLab
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using CoreLab.MySql;
var conn = new MySqlConnection();
conn.ConnectionString =
              "Host=ServerName;" +
              "DataBase=DataBaseName;" +
              "Protocol=TCP;" +
              "Port=3306;" +
              "Direct=true;" +
              "Compress=false;" +
              "Pooling=true;" +
              "Min Pool Size=0;" +
              "Max Pool Size=100;" +
              "Connection Lifetime=0;" +
              "User id=UserName;" +
              "Password=Secret;" +
conn.Open();

 

 

  1. Sybase

  • ODBC DSN
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString =
              "Dsn=DsnName;" +
              "Uid=UserName;" +
              "Pwd=Secret;";
conn.Open();
  • ODBC -- Sybase System 12 (12.5) ODBC Driver
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString =
              "Driver={SYBASE ASE ODBC Driver};" +
              "Srvr=ServerName;" +
              "Uid=UserName;" +
              "Pwd=Secret;";
conn.Open();
  • ODBC -- Sybase System 11 ODBC Driver
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString =
           "Driver={SYBASE SYSTEM 11};" +
           "Srvr=ServerName;" +
           "Uid=UserName;" +
           "Pwd=Secret;";
conn.Open();
  • ODBC -- Intersolv 3.10 ODBC Driver
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString =
        "Driver={INTERSOLV 3.10 32-BIT Sybase};" +
        "Srvr=ServerName;" +
        "Uid=UserName;" +
        "Pwd=Secret;";
conn.Open();
  • ODBC -- SQL Anywhere
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString =
         "ODBC;" +
         "Driver={Sybase SQL Anywhere 5.0};" +
         "DefaultDir=c:\myfolder\;" +
         "Dbf=c:\mypath\dbname.db;" +
         "Uid=UserName;" +
         "Pwd=Secret;" +
         "Dsn="""";";     // Must be included!
conn.Open();
  • OleDb -- Sybase Adaptive Server Enterprise (ASE)
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using System.Data.OleDb;
var conn = new OleDbConnection();
conn.ConnectionString =
              "Driver=Sybase.ASEOLEDBProvider;" +
              "Server Name=ServerName,5000;" +
              "Initial Catalog=DataBaseName;" +
              "User id=UserName;" +
              "Password=Secret;";
conn.Open();
// optionally, replace
// 'Server Name' with 'Srvr', and
// 'Initial Catalog' with 'Catalog'
  • .NET DataProvider from Sybase
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using Sybase.Data.AseClient;
var conn = new AseConnection();
conn.ConnectionString =
              "Data Source=ServerName;" +
              "Initial Catalog=DataBaseName;" +
              "User id=UserName;" +
              "Password=Secret;";
conn.Open();

 

 

  1. Interbase

 

  • ODBC DSN
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString =
              "Dsn=DsnName;" +
              "Uid=UserName;" +
              "Pwd=Secret;";
conn.Open();
  • ODBC -- EasySoft ODBC Driver -- local machine
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString =
      "Driver={Easysoft IB6 ODBC};" +
      "Server=localhost;" +
      "DataBase=localhost:C:\MyPath\DbName.gdb;" +
      "Uid=UserName;" +
      "Pwd=Secret;";
conn.Open();
  • ODBC -- EasySoft ODBC Driver -- remote machine
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString =
      "Driver={Easysoft IB6 ODBC};" +
      "Server=ServerName;" +
      "DataBase=ServerName:C:\MyPath\DbName.gdb;" +
      "Uid=UserName;" +
      "Pwd=Secret;";
conn.Open();
  • ODBC -- Intersolv ODBC Driver -- local machine
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString =
      "Driver=" +
   "{INTERSOLV InterBase ODBC Driver (*.gdb)};" +
      "Server=localhost;" +
      "DataBase=localhost:C:\MyPath\DbName.gdb;" +
      "Uid=UserName;" +
      "Pwd=Secret;";
conn.Open();
  • ODBC -- Intersolv ODBC Driver -- remote machine
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString =
      "Driver=" +
   "{INTERSOLV InterBase ODBC Driver (*.gdb)};" +
      "Server=ServerName;" +
      "DataBase=ServerName:C:\MyPath\DbName.gdb;" +
      "Uid=UserName;" +
      "Pwd=Secret;";
conn.Open();

 

 

  1. Informix

  • ODBC DSN -- INFORMIX 3.30 ODBC Driver
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString =
              "Dsn=DsnName;" +
              "Host=HostName;" +
              "Server=ServerName;" +
              "Service=ServerName;" +
              "Protocol=olsoctcp;" +
              "Database=DataBaseName;" +
              "Uid=UserName;" +
              "Pwd=Secret;";
conn.Open();
  • ODBC without DSN -- INFORMIX 3.30 ODBC Driver
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString =
              "Dsn="";" +
              "Driver={INFORMIX 3.30 32 BIT};" +
              "Host=HostName;" +
              "Server=ServerName;" +
              "Service=ServerName;" +
              "Protocol=olsoctcp;" +
              "Database=DataBaseName;" +
              "Uid=UserName;" +
              "Pwd=Secret;";
conn.Open();
  • ODBC Informix-CLI 2.5 ODBC Driver
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString =
          "Driver={Informix-CLI 2.5 (32 Bit)};" +
          "Server=ServerName;" +
          "DataBase=DataBaseName;" +
          "Uid=UserName;" +
          "Pwd=Secret;";
conn.Open();
  • OleDb -- IBM Informix OleDb Provider
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using System.Data.OleDb;
var conn = new OleDbConnection();
conn.ConnectionString =
        "Driver=IFXOLEDBC;" +
        "Data Source=DataBaseName@ServerName;" +
        "User id=UserName;" +
        "Password=Secret;";
        "Persist Security Info=true;";
conn.Open();

 

 

  1. Excel

 

  • ODBC DSN
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString =
              "Dsn=DsnName;" +
              "Uid=UserName;" +
              "Pwd=Secret;";
conn.Open();
  • ODBC without DSN
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString =
       "Driver={Microsoft Excel Driver (*.xls)};" +
       "Driverid=790;" +
       "Dbq=C:\MyPath\SpreadSheet.xls;" +
       "DefaultDir=C:\MyPath;";
conn.Open();
  • OleDb with MS Jet
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using System.Data.OleDb;
var conn = new OleDbConnection();
conn.ConnectionString =
    "Driver=Microsoft.Jet.OLEDB.4.0;" +
    "Data Source=C:\MyPath\SpreadSheet.xls;" +
   @"Extended Properties=""Excel 8.0;HDR=Yes""";
conn.Open();

 

 

  1. Text

  • ODBC DSN
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString =
              "Dsn=DsnName;" +
              "Uid=UserName;" +
              "Pwd=Secret;";
conn.Open();
  • ODBC without DSN
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString =
 "Driver={Microsoft Text Driver (*.txt; *.csv)};" +
 "Dbq=C:\MyPath\;" +
 "Extensions=asc,csv,tab,txt;";
conn.Open();
// Use: sql = "Select * From MyTextFile.txt"
  • OleDb with MS Jet
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using System.Data.OleDb;
var conn = new OleDbConnection();
conn.ConnectionString =
      "Driver=Microsoft.Jet.OLEDB.4.0;" +
      "Data Source=C:\MyPath\;" +
      "Extended Properties=" +
        @"""text;HDR=Yes;FMT=Delimited""";
conn.Open();
// Use: sql = "Select * From MyTextFile.txt"

 

 

  1. dBase Dbf

 

  • ODBC DSN
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString = "Dsn=DsnName";
conn.Open();
// Use: sql = "Select * From MyDb.dbf"
  • ODBC without DSN
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString =
     "Driver={Microsoft dBASE Driver (*.dbf)};" +
     "Driverid=277;" +
     "Dbq=C:\MyPath\";
conn.Open();
// Use: sql = "Select * From MyDb.dbf"

 

 

  1. Visual FoxPro​
  • ODBC DSN
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString = "Dsn=DsnName";
conn.Open();
  • ODBC without DSN -- Database container (dbc)
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString =
      "Driver={Microsoft Visual FoxPro Driver};" +
      "SourceType=DBC;" +
      "SourceDB=C:\MyPath\MyDb.dbc;" +
      "Exclusive=No";
conn.Open();
  • ODBC without DSN -- Free table directory
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using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString =
      "Driver={Microsoft Visual FoxPro Driver};" +
      "SourceType=DBF;" +
      "SourceDB=C:\MyPath;" +
      "Exclusive=No";
conn.Open();
  • OleDb -- Database container (dbc)
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using System.Data.OleDb;
var conn = new OleDbConnection();
conn.ConnectionString =
              "Driver=VFPOLEDB;" +
              "Data Source=C:\MyPath\MyDb.dbc;" +
              "Collating Sequence=machine;" +
              "Password=Secret;";
conn.Open();
  • OleDb -- Free table directory
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using System.Data.OleDb;
var conn = new OleDbConnection();
conn.ConnectionString =
              "Driver=VFPOLEDB;" +
              "Data Source=C:\MyPath\;" +
              "Collating Sequence=general;" +
              "Password=Secret;";
conn.Open();