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Wadhah DAOUEHI
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Category Archives: Oracle 19c

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Oracle Database 19c Security Hardening – Part 1

By Wadhah DAOUEHI | July 12, 2026 - 3:53 pm |August 9, 2026 Oracle 19c, Security
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Introduction If you’ve just installed Oracle Database 19c, your database is ready to use—but it … Read More →

Oracle Database 19c: Transporting Tablespaces from a Non-CDB to a PDB

By Wadhah DAOUEHI | July 11, 2026 - 2:01 pm |July 11, 2026 Oracle 19c
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Transportable Tablespaces (TTS) is one of the fastest methods to migrate large amounts of data … Read More →

Oracle 19c Recovery Catalog: Installation and Configuration

By Wadhah DAOUEHI | July 5, 2026 - 6:27 pm |July 10, 2026 Oracle 19c
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Introduction Oracle Recovery Manager (RMAN) is the recommended utility for backing up and recovering Oracle … Read More →

Oracle RAC 19c: Change SCAN adresses

By Wadhah DAOUEHI | July 4, 2026 - 3:55 pm |July 9, 2026 Linux, Oracle 19c, RAC 19c
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This tutorial explains how to change the SCAN (Single Client Access Name) IP addresses in … Read More →

Oracle Database 19c: How to Verify Locked and Expired User Accounts

By Wadhah DAOUEHI | June 8, 2026 - 3:07 pm |June 9, 2026 Oracle 19c, Oracle Database
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In Oracle Database 19c managing user accounts is very important for database security. Checking how … Read More →

Oracle Database 19c: How to Verify DBA Accounts and Audit DBA Roles

By Wadhah DAOUEHI | June 6, 2026 - 2:03 pm |June 9, 2026 Oracle 19c, Oracle Database
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When you are using Oracle Database 19c in a company the people with DBA accounts … Read More →

Oracle 19c – SQL Access Path: Index Fast Full Scan

By Wadhah DAOUEHI | February 8, 2026 - 7:06 pm |May 31, 2026 Oracle 19c, Oracle Database
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In Oracle Database 19c, the Cost-Based Optimizer (CBO) determines the most efficient method to retrieve … Read More →

Oracle ASM : Monitor Disk Group Space Usage in 19c

By Wadhah DAOUEHI | January 25, 2026 - 2:37 pm |May 31, 2026 Oracle 19c, Oracle Database
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In Oracle 19c environments using ASM (Automatic Storage Management), monitoring disk group space is critical … Read More →

Hourly Redo Activity Analysis Using V$LOG_HISTORY

By Wadhah DAOUEHI | January 11, 2026 - 2:18 pm |May 31, 2026 Oracle 19c, Oracle Database
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Understanding redo generation patterns is essential for Oracle performance monitoring, backup planning, and Data Guard … Read More →

Identify Where Database Time Is Spent (Wait Events + CPU)

By Wadhah DAOUEHI | December 21, 2025 - 2:02 pm |May 31, 2026 Oracle 19c, Oracle Database
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One of the most important tasks for an Oracle DBA is understanding where database time … Read More →

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  • Recent Posts

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    • Oracle Database 19c Security Hardening – Part 16
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    • Oracle Database 19c Security Hardening – Part 2
    • Oracle Database 19c Security Hardening – Part 1
    • Oracle Database 19c: Transporting Tablespaces from a Non-CDB to a PDB
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    • Oracle RAC 19c: Change SCAN adresses
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