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Wadhah DAOUEHI
Wadhah DAOUEHI
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Category Archives: Linux

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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 ODA X9 (19c): Create a Backup ACFS volume

By Wadhah DAOUEHI | June 21, 2026 - 3:51 pm |July 11, 2026 Linux, ODA 19c, RAC 19c
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Starting with ODA 19.6, the DB homes are created on ACFS file systems, and we … Read More →

Oracle ODA X9 (19c): Resize DB Home Storage

By Wadhah DAOUEHI | June 13, 2026 - 3:01 pm |July 11, 2026 Linux, ODA 19c, RAC 19c
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A good news, starting from Oracle Database Appliance ODA 19.6, the Oracle Database Home (DB … Read More →

OS_AUTHENT_PREFIX External Authentication in Oracle Database 19c

By Wadhah DAOUEHI | September 14, 2025 - 10:40 pm |March 2, 2026 Linux, Oracle 19c, Oracle Database
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Let’s make an extenal authentification example, so the operating system authentication (OS authentication) allows users … Read More →

Database 19c Vault: OWNER/Manager privileges !

By Wadhah DAOUEHI | March 15, 2025 - 11:54 am |May 3, 2025 Linux
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In Oracle Database 19c, after enabling Database Vault (DV), two key roles are assigned during … Read More →

Enabling the Database Vault (Initialisation parameters)

By Wadhah DAOUEHI | March 3, 2025 - 11:32 am |May 3, 2025 Linux
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To enable Oracle Database Vault, specific initialization parameters must be set, and configuration steps must … Read More →

[FATAL] [DBT-09352] Error in validating dbv_owner credentials.

By Wadhah DAOUEHI | March 2, 2025 - 11:07 am |May 3, 2025 Linux
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While enabling Oracle database VAULT with the tool dbca, and after creating a dedicated Oracle … Read More →

Oracle 19c: Convert Table to range partition online

By Wadhah DAOUEHI | February 22, 2025 - 4:11 pm |April 14, 2025 Linux
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Partitioning allows tables, indexes, and index-organized tables to be subdivided into smaller pieces, enabling these … Read More →

NGINST-64051: Invalid Central Inventory location “null”.

By Wadhah DAOUEHI | June 7, 2024 - 12:03 am |June 8, 2024 Linux
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NGINST-64051: Invalid Central Inventory location “null”.

While installing the Oracle Cloud Control Entreprise Manager agent 13.5.0.0.0 on windows, and you have … Read More →

23ai: BOOLEAN Column Data Type <Enhancement 02>

By Wadhah DAOUEHI | May 29, 2024 - 11:54 pm |May 29, 2024 Linux
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Withing the 23ai, we insert boolean data type with different format: SQL> create table tb4 … Read More →

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  • Recent Posts

    • Oracle Database 19c: Transporting Tablespaces from a Non-CDB to a PDB
    • Oracle 19c Recovery Catalog: Installation and Configuration
    • Oracle RAC 19c: Change SCAN adresses
    • Oracle RAC 19c: Change VIPs adresses
    • Oracle ODA X9-2 (19c): Check networks status
    • Oracle ODA X9 (19c): Erase appliance Configuration
    • Oracle ODA X9 (19c): Create a Backup ACFS volume
    • Oracle ODA X9 (19c): Resize DB Home Storage
    • Oracle Database 19c: How to Verify Locked and Expired User Accounts
    • Oracle Database 19c: How to Verify DBA Accounts and Audit DBA Roles
    • Oracle 19c – SQL Access Path: Index Fast Full Scan
    • Oracle ASM : Monitor Disk Group Space Usage in 19c
    • Hourly Redo Activity Analysis Using V$LOG_HISTORY
    • Identify Where Database Time Is Spent (Wait Events + CPU)
    • Calculate Real Table Size (Including Indexes, LOBs and LOB indexes)
    • Oracle 19c: Index-Organized Table (IOT)
    • Oracle 19c – SQL Access Path: Index Skip Scan
    • Oracle 19c – SQL Access Path: Index Full Scan
    • Oracle 19c – SQL Access Path: Index Range Scan
    • Oracle 19c – SQL Access Path: Index Unique Scan
    • Oracle 19c – SQL Access Path: ROWID Scan
    • Oracle 19c – SQL Access Path: Full Table Scan
    • OS_AUTHENT_PREFIX External Authentication in Oracle Database 19c
    • Oracle 19c Flashback Technology (7/7): Data Archives
    • Oracle 19c Flashback Technology (6/7): Flashback Database/PDB
    • Oracle 19c Flashback Technology (5/7): TRANSACTION
    • Oracle 19c Flashback Technology (4/7): Table
    • Oracle 19c Flashback Technology (3/7): Drop Table
    • Oracle 19c Flashback Technology (2/7): Versions Query
    • Oracle 19c Flashback Technology (1/7): Query
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