Welcome To TechBrothersIT: How to Connect to SQL Server Default Instance and SQL Server Named Instances - SQL Server / TSQL Tutorial Part 2
I have installed Microsoft SQL server database in my local machine. When I'm trying to connect to Microsoft SQL database connection is not established.
![SQL SERVER - Fix : Error: 4064 - Cannot open user default database. Login failed. Login failed for user - SQL Authority with Pinal Dave SQL SERVER - Fix : Error: 4064 - Cannot open user default database. Login failed. Login failed for user - SQL Authority with Pinal Dave](https://blog.sqlauthority.com/i/b/error4064_1.jpg)
SQL SERVER - Fix : Error: 4064 - Cannot open user default database. Login failed. Login failed for user - SQL Authority with Pinal Dave
![Connect and query a SQL Server instance using SQL Server Management Studio (SSMS) - SQL Server Management Studio (SSMS) | Microsoft Learn Connect and query a SQL Server instance using SQL Server Management Studio (SSMS) - SQL Server Management Studio (SSMS) | Microsoft Learn](https://learn.microsoft.com/en-us/sql/ssms/quickstarts/media/ssms-connect-query-sql-server/connect-to-sql-server-object-explorer.png?view=sql-server-ver16)