Why does the SQL Server transaction log keep getting full?

When I first encountered the “transaction log is full” error, I had no idea what was happening. My SQL database kept freezing, and backups failed every few hours. I learned that the transaction log records every database change — and if it’s not backed up or truncated, it fills up fast. While manual methods like shrinking or clearing logs helped temporarily, they weren’t reliable. I finally used the DRS SQL Database Repair Tool, which not only repaired the damaged log but also optimized the database without data loss.