When a SQL Server database goes offline due to a corrupted log file, it can feel like a disaster waiting to happen. The log file plays a critical role in ensuring transactional integrity, and without it, your database is left in a precarious state. However, all is not lost. There are several methods to bring your database back online, even when faced with log file corruption. In this blog, we’ll explore how to recover a database in this challenging scenario, walk through the steps to restore operations, and ensure that data loss is minimized. Whether you’re a DBA or a developer, understanding these techniques could be the difference between a smooth recovery and a prolonged outage.

The Transaction Log file corruption can be caused due to multiple reasons, include:

• The system terminated abnormally without proper shutdown for the databases
• Hardware or configuration issue occurred with the I/O subsystem that is used to host the system and user databases files
• The system got affected by a virus, malicious software or malware attack that damaged the files or make it inaccessible
• The Transaction Log file ran out of free space and exceeds the configured maximum file size

Use the below query to set the DB to emergency mode

USE master 

Lochan R