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The Ora DBA

The Ora DBA is a practical Oracle Database Administration blog covering Oracle DBA, RMAN, Data Guard, Database Auditing, Performance Tuning, SQL, Linux, and Cloud DBA. Discover Oracle database administration guides, SQL scripts, troubleshooting solutions, backup and recovery techniques, security best practices, performance tuning tips, and real-world DBA solutions designed to help database professionals manage, troubleshoot, secure, and optimize Oracle databases effectively.

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Wednesday, October 28, 2026

Oracle to MySQL : Heterogeneous Database Link Configuration Step by Step

Oracle DBA Database Link DG4ODBC Heterogeneous Services MySQL Oracle 19c Oracle Linux 8 Applications often nee...

Tuesday, October 13, 2026

Oracle Database : Control File Multiplexing on ASM and Filesystem

Oracle DBA Control File Multiplexing ASM RMAN High Availability Oracle 19c The control file is a small binary...

Monday, October 12, 2026

RMAN Backup Strategy: Full, Incremental and Archivelog Backups

Oracle DBA RMAN Backup and Recovery Incremental Backup ARCHIVELOG Oracle 19c Oracle Recovery Manager (RMAN) supp...