Sql connection-string for localhost server

Question

I am newbie in this .NET and please don\'t mind in answering my simple question. I am trying to write a windows application, where in I am using a localhost SQLserver for da

Answer 1

When using SQL Express, you need to specify \SQLExpress instance in your connection string:

string str = "Data Source=HARIHARAN-PC\\SQLEXPRESS;Initial Catalog=master;Integrated Security=True" ;

Answer 2

public string strConnectionstring = "Data Source=(LocalDB)\\MSSQLLocalDB;AttachDbFilename=|DataDirectory|\\DataBaseName.mdf";

Answer 3

<add name="connstr" connectionString="Data Source=localhost;Initial Catalog=DBName;User Id=username;Password=password" providerName="System.Data.SqlClient"/>

The above also works. It ignores the username and password passed in in the connection string. I switched from an environment db to a local one, and it works fine even though my user in the connection string does not exist in this context.

Answer 4

Using the default instance (i.e., MSSQLSERVER, use the DOT (.))

<add name="CONNECTION_STRING_NAME" connectionString="Data Source=.;Initial Catalog=DATABASE_NAME;Integrated Security=True;" />

Answer 5

In .Net configuration I would use something like:

"Data Source=(localdb)\\MSSQLLocalDB;Initial Catalog=..."

This information is from https://www.connectionstrings.com/sql-server-2016/

Answer 6

Data Source=HARIHARAN-PC\SQLEXPRESS; Initial Catalog=Your_DataBase_name; Integrated Security=true/false; User ID=your_Username;Password=your_Password;

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