It's hard to remember details of database connection strings.
Here is an easy reference for the most popular databases.
Note: Code samples are in C#. You must provide the values in red
using System.Data.Odbc; var conn = new OdbcConnection(); conn.ConnectionString = "Dsn=DsnName;" + "Uid=UserName;" + "Pwd=Secret;"; conn.Open();
using System.Data.Odbc; var conn = new OdbcConnection(); conn.ConnectionString = "Driver={SQL Server};" + "Server=DataBaseNamex;" + "DataBase=DataBaseName;" + "Uid=UserName;" + "Pwd=Secret;"; conn.Open();
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();
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();
using System.Data.OleDb; var conn = new OleDbConnection(); conn.ConnectionString = "Driver=SQLOLEDB;" + "Data Source=ServerName;" + "Initial Catalog=DataBaseName;" + "Integrated Security=SSPI;"; conn.Open();
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();
using System.Data.SqlClient; var conn = new SqlDbConnection(); conn.ConnectionString = "Data Source=ServerName;" + "Initial Catalog=DataBaseName;" + "User id=UserName;" + "Password=Secret;"; conn.Open();
using System.Data.SqlClient; var conn = new SqlConnection(); conn.ConnectionString = "Data Source=ServerName;" + "Initial Catalog=DataBaseName;" + "Integrated Security=SSPI;"; conn.Open();
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();
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();
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();
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();
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();
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();
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();
using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString = "Dsn=DsnName";
conn.Open();
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();
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();
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();
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();
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();
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();
using System.Data.Odbc; var conn = new OdbcConnection(); conn.ConnectionString = "Dsn=DsnName;" + "Uid=UserName;" + "Pwd=Secret;"; conn.Open();
using System.Data.Odbc; var conn = new OdbcConnection(); conn.ConnectionString = "Driver={Microsoft ODBC for Oracle};" + "Server=OracleServer.world;" + "Uid=UserName;" + "Pwd=Secret;"; conn.Open();
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();
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();
uusing System.Data.OleDb; var conn = new OleDbConnection(); conn.ConnectionString = "Driver=MSDAORA;" + "Data Source=ServerName;" + "User id=UserName;" + "Password=Secret;"; conn.Open();
using System.Data.OleDb; var conn = new OleDbConnection(); conn.ConnectionString = "Driver=OraOLEDB.Oracle;" + "Data Source=ServerName;" + "User id=UserName;" + "Password=Secret;"; conn.Open();
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();
using System.Data.OracleClient; var conn = new OracleConnection(); conn.ConnectionString = "Data Source=ServerName;" + "User id=UserName;"; "Password=Secret;"; conn.Open();
using System.Data.OracleClient;
var conn = new OracleConnection();
conn.ConnectionString =
"Data Source=Servername;" +
"Integrated Security=Yes;";
conn.Open();
using Oracle.DataAccess.Client; var conn = new OracleConnection(); conn.ConnectionString = "Data Source=ServerName;" + "User id=UserName;"; "Password=Secret;"; conn.Open();
using Oracle.DataAccess.Client;
var conn = new OracleConnection();
conn.ConnectionString =
"Data Source=Servername;" +
"Integrated Security=Yes;";
conn.Open();
using System.Data.Odbc; var conn = new OdbcConnection(); conn.ConnectionString = "Dsn=DsnName;" + "Uid=UserName;" + "Pwd=Secret;"; conn.Open();
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();
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();
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();
using IBM.Data.DB2; var conn = new Db2Connection(); conn.ConnectionString = "DataBase=DataBaseName;" + "Uid=UserName;" + "Pwd=Secret;" + conn.Open();
using System.Data.Odbc; var conn = new OdbcConnection(); conn.ConnectionString = "Dsn=DsnName;" + "Uid=UserName;" + "Pwd=Secret;"; conn.Open();
using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString =
"Driver={MySql};" +
"Server=localhost;" +
"Option=16834;" +
"DataBase=DataBaseName;"
conn.Open();
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();
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();
using System.Data.OleDb; var conn = new OleDbConnection(); conn.ConnectionString = "Provider=MySqlProv;" + "Data Source=ServerName;" + "User id=UserName;" + "Password=Secret;" conn.Open();
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();
using System.Data.Odbc; var conn = new OdbcConnection(); conn.ConnectionString = "Dsn=DsnName;" + "Uid=UserName;" + "Pwd=Secret;"; conn.Open();
using System.Data.Odbc; var conn = new OdbcConnection(); conn.ConnectionString = "Driver={SYBASE ASE ODBC Driver};" + "Srvr=ServerName;" + "Uid=UserName;" + "Pwd=Secret;"; conn.Open();
using System.Data.Odbc; var conn = new OdbcConnection(); conn.ConnectionString = "Driver={SYBASE SYSTEM 11};" + "Srvr=ServerName;" + "Uid=UserName;" + "Pwd=Secret;"; conn.Open();
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();
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();
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'
using Sybase.Data.AseClient; var conn = new AseConnection(); conn.ConnectionString = "Data Source=ServerName;" + "Initial Catalog=DataBaseName;" + "User id=UserName;" + "Password=Secret;"; conn.Open();
using System.Data.Odbc; var conn = new OdbcConnection(); conn.ConnectionString = "Dsn=DsnName;" + "Uid=UserName;" + "Pwd=Secret;"; conn.Open();
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();
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();
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();
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();
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();
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();
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();
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();
using System.Data.Odbc; var conn = new OdbcConnection(); conn.ConnectionString = "Dsn=DsnName;" + "Uid=UserName;" + "Pwd=Secret;"; conn.Open();
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();
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();
using System.Data.Odbc; var conn = new OdbcConnection(); conn.ConnectionString = "Dsn=DsnName;" + "Uid=UserName;" + "Pwd=Secret;"; conn.Open();
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"
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"
using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString = "Dsn=DsnName";
conn.Open();
// Use: sql = "Select * From MyDb.dbf"
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"
using System.Data.Odbc;
var conn = new OdbcConnection();
conn.ConnectionString = "Dsn=DsnName";
conn.Open();
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();
using System.Data.Odbc; var conn = new OdbcConnection(); conn.ConnectionString = "Driver={Microsoft Visual FoxPro Driver};" + "SourceType=DBF;" + "SourceDB=C:\MyPath;" + "Exclusive=No"; conn.Open();
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();
using System.Data.OleDb; var conn = new OleDbConnection(); conn.ConnectionString = "Driver=VFPOLEDB;" + "Data Source=C:\MyPath\;" + "Collating Sequence=general;" + "Password=Secret;"; conn.Open();