Category: Databases
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Installing Oracle Database 23ai on ARM Macs with Sample Schemas
Released on 12th November 2024, Oracle Database 23ai now offers free container images optimized for ARM-based Apple MacBook computers with M-series chips, enhancing development efficiency. Two image options, Full and Lite, are designed to meet diverse requirements. This post details the process for setting up the Oracle Database using Docker, checking logs, connecting with SQLcl, and importing sample schemas(HR,SH and CO), providing Mac developers with an efficient way to create test environments.
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File System Corruption on Root (/) Partition of Exadata Storage Server – Oracle Linux 7
A file system corruption issue was detected on the root partition of an Exadata storage server running Oracle Linux 7.9. This was identified by AIDE due to changes in file attributes. Investigations revealed errors in the logs pointing to inode inconsistencies. Attempts to resolve the corruption faced obstacles due to the unavailability of diagnostic ISO images. Ultimately, the file system corruption was fixed by using an Oracle Linux 7.9 installation ISO and running fsck manually.
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How To Change Oracle Central Inventory Location
The content discusses the steps of changing the Oracle Central Inventory location for a non-standard installation to ensure consistency before applying Ansible Playbooks for Oracle Database Update. The article explains the role of the Central Inventory, details steps to find the current location, copy directories, update configuration files, and verify the process. It also notes that similar changes on Windows are unsupported.
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Oracle Database Time Zone (DST) Upgrade: Step-by-Step Guide
The necessity of a time zone upgrade depends on whether a database stores timestamp data with time zones. For organizations with clients in various time zones, upgrading may be essential. The data types TIMESTAMP WITH TIME ZONE (TSTZ) and TIMESTAMP WITH LOCAL TIME ZONE (TSLTZ) are key considerations, with TSTZ retaining original time zone data while TSLTZ normalizes it according to DBTIMEZONE value. Oracle’s Data Pump requires matching time zone versions during data transfers. The steps for upgrading the time zone in a sample database are explained in detail.
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Oracle FGA Audit Condition and Column Level Auditing
Unified Auditing mechanism currently in 19c lacks affected rows count reporting and column-level monitoring, presenting challenges in detecting data accesses. Upcoming Oracle Database 23ai will introduce column-level monitoring, allowing focused audits on specific sensitive columns like PAN and SSN. Until then, Fine-Grained Auditing can help track sensitive data at a granular level. Both auditing methods can be effectively used together for comprehensive auditing solutions. Is it possible to audit a specific column for specific users only, and only when rows are returned? I demonstrate how to do this using DBMS_FGA.
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ORA-30554 errors on Function-Based Spatial Indexes after Spatial Bundle Patch
After applying the Spatial Bundle Patch, ORA-30554 errors may occur on functional indexes that use spatial operators. Functional indexes provide the benefit of spatial indexing but can become disabled after changes to dependent functions. Specific commands are required to re-enable them. This blog post provides details on handling spatial operations, managing indexes, and troubleshooting issues that arise after updates.
