Expert insights on database recovery, disaster recovery strategies, and best practices for Oracle and MySQL administration.
Plain-English answers about licensed export for SOURCE$, OBJ$, USER$, views, triggers, PL/SQL source, LOB columns, Oracle 11.2.0.4 DBF files, and evaluation-version limits.
A practical Oracle DR disaster recovery solution guide covering RPO/RTO design, RMAN, Data Guard, Flashback, cloud standby, ransomware response, and tested runbooks.
A public GUI walkthrough for DBRecover for Oracle 2605 using the C6X260516 Oracle 19c reference dataset, with CSV export, LOB, ASM, Dump Reader, Data Bridge, and recovery scenario validation.
A practical public matrix for ransomware-damaged Oracle DBF files: when DBRECOVER can salvage plaintext Oracle blocks, when partial recovery is realistic, and when keys or backups are required.
All legacy ParnassusData English blog posts have been migrated, cleaned, and reformatted into the DBRECOVER technical knowledge base as the old blog is retired.
Version 2605 adds a free Redo Log Reader that can open Oracle redo log files, inspect SCN ranges, query REDO_CONTENTS with SQL, and review SQL_REDO locally.
Technical overview of direct EXP/EXPDP reading, LOB handling, SQLite-backed SQL query, CSV/BLOB export, Data Pump diagnostics, and current feature limits.
Expert guide to database ransomware recovery. Learn how attackers target databases, why partial recovery is possible, and how DBRECOVER extracts data from encrypted files without paying ransom.
Comprehensive guide to ORA-01578 block corruption recovery. Learn causes, diagnosis methods (DBV, RMAN VALIDATE), Oracle native fixes (DBMS_REPAIR, BMR), and DBRECOVER solutions.
Comprehensive guide to MySQL InnoDB recovery. Learn InnoDB architecture, corruption types, innodb_force_recovery levels, and how DBRECOVER extracts data when MySQL won't start.
Master Oracle RMAN backup and recovery from basics to advanced topics. Covers encryption, CDB/PDB, Data Guard, cloud integration, and production automation scripts for Oracle 19c/21c.
Comprehensive technical analysis of ORA-01157 error. Expert-level diagnosis of datafile identification failures, locking conflicts, ASM issues, and advanced recovery strategies including no-backup scenarios.
Comprehensive technical analysis of ORA-15196 invalid ASM block header error. Deep dive into ASM metadata structures, KFBH anatomy, kfed/amdu diagnostics, and advanced recovery using DBRECOVER.
Step-by-step guide to extracting data from Oracle datafiles encrypted by ransomware. Learn how to identify tablespace numbers (TS#), map file relationships, and use DBRECOVER Dictionary Mode for successful recovery.
Comprehensive forensic analysis of ransomware attacks on Oracle databases. Expert guide covering LockBit, Cl0p, Mallox tactics, why RMAN fails against encrypted headers, and Direct Data Extraction remediation using DBRECOVER.
Comprehensive forensic analysis of fatal ORA-00600 internal errors. Expert guide to Direct Data Extraction methodology when standard Oracle recovery mechanisms fail.
Comprehensive forensic manual for recovering Oracle databases when no backup exists. Learn block-level forensics, byte patterns, and how DBRECOVER bypasses corrupt instances.
Comprehensive FAQ covering licensing, DB_NAME binding, Dictionary vs Non-Dictionary recovery modes, Java setup, troubleshooting, and emergency recovery scenarios.
Comprehensive deep-dive into DBRECOVER for Oracle — extract data directly from .dbf files at the binary level, bypassing the need for a running instance, control files, or redo logs.
Comprehensive technical analysis of ORA-01115 I/O error. Expert-level diagnosis covering storage failures, OS pathologies, Oracle kernel bugs, and emergency recovery techniques.
Comprehensive forensic analysis of Oracle ORA-01122 error ecosystem. Deep dive into verification mechanisms, ORA-01207/01208/01200/01206 errors, storage failures, and advanced remediation.
Comprehensive technical analysis of Oracle ORA-01194 error. Deep dive into SCN consistency, fuzzy files, hidden parameters, and emergency recovery techniques including Dark Arts methods.
Complete changelog for DBRECOVER for Oracle version 2512. New features, Oracle 18c-26c support, performance improvements, and database migration from Derby to SQLite.
Important information about DBRECOVER licensing, commercial use terms, and support options for enterprise customers.
Complete guide to recovering data from corrupted MySQL InnoDB databases. Learn how to diagnose corruption and extract your data safely.
Essential security practices to protect your MySQL databases from ransomware attacks and malware infections. Prevention and recovery strategies.
How to handle the dreaded "Database page corruption on disk or a failed file read of page" error and recover your data.
Understanding and resolving the tablespace boundary error in InnoDB. Step-by-step recovery procedures and prevention tips.
Dealing with InnoDB log sequence number inconsistencies. Learn why this error occurs and how to recover your database.
Case study showing how to recover an accidentally dropped MySQL database using DBRECOVER. Real-world recovery scenario walkthrough.
Complete user guide for DBRECOVER for Oracle. Learn all commands, options, and best practices for Oracle database recovery.
Version 2605 GUI guide covering MySQL 8 SDI, MySQL 5 FRM, datadir recovery, drop recovery, disk image scan, export, and troubleshooting.
Learn how to recover MySQL InnoDB data directly from disk partitions and logical volumes when the filesystem is damaged.
Complete guide to diagnosing and resolving ORA-01122: database file failed verification check error in Oracle.
Learn how to resolve the ORA-01194 "file needs more recovery to be consistent" error in Oracle databases.
A comprehensive guide to understanding and resolving the ORA-01113 "file needs media recovery" error.
Guide to diagnosing and resolving ORA-01115 IO errors, typically indicating hardware or storage problems.
DBRECOVER 23RC1 brings Oracle 23c support, parallel recovery engine, enhanced ASM recovery, and more.
Start with the trial to verify recoverability. Paid emergency assistance is available separately for critical recovery scenarios.