How I attach the non detach sql data file and restore my database?

 To attach a non-detached SQL Server data file (.mdf) and restore your database, you can use SQL Server Management Studio (SSMS) or T-SQL commands. Here’s how you can do it:

Using SQL Server Management Studio (SSMS)

1. Open SSMS: Connect to your SQL Server instance.
2. Attach Database:
   • Right-click on Databases in the Object Explorer.
   • Select Attach.
   • In the Attach Databases dialog, click Add.
   • Browse and select your .mdf file.
   • If there is no .ldf (log file), SQL Server will create a new one.
   • Click OK to attach the database.

Using T-SQL

If you want to do it via a script, you can use the CREATE DATABASE ... FOR ATTACH statement. Here’s a basic example:

sql

CREATE DATABASE [YourDatabaseName]
ON (FILENAME = 'C:\Path\To\Your\file.mdf')
FOR ATTACH;

If you don’t have the .ldf file, you can attach the database with the FOR ATTACH_REBUILD_LOG option, which will create a new log file:

sql

CREATE DATABASE [YourDatabaseName]
ON (FILENAME = 'C:\Path\To\Your\file.mdf')
FOR ATTACH_REBUILD_LOG;

Considerations

• Ensure that the SQL Server service account has the necessary permissions to access the .mdf file.
• Attaching a non-detached database might cause data loss if the .ldf file is missing or corrupted, as a new log file will be generated.