Unable to attach MDF and LDF files in SQL Server or facing errors while restoring database? Many users search Attach MDF and LDF Files in SQL Server when database fails to mount. The MDF (primary data file) and LDF (log file) must be correctly mapped & consistent before attachment. Issues like missing or corrupted log files, wrong paths, permissions, or version mismatch often cause failures. Ensuring valid file paths and proper permissions can resolve most cases. If files are damaged or inaccessible, recovery is required to rebuild structure and restore data integrity. The SQL Recovery Tool helps repair damaged MDF/LDF files and recover database objects safely, enabling smooth attachment without data loss. Verify integrity and SQL Server compatibility before attachment to avoid errors.