Top 12 Oracle DBA Skills to Put on Your Resume

In the competitive field of database administration, showcasing your mastery of Oracle DBA skills on your resume can significantly elevate your marketability to potential employers. This article compiles the top 12 indispensable skills that demonstrate your proficiency and dedication to Oracle database management, ensuring you stand out in the job market.

Oracle DBA Skills

1. Oracle RAC
2. Data Guard
3. RMAN
4. ASM (Automatic Storage Management)
5. PL/SQL
6. Oracle Exadata
7. Performance Tuning
8. Oracle Enterprise Manager (OEM)
9. Oracle Cloud Infrastructure (OCI)
10. Oracle GoldenGate
11. Oracle E-Business Suite
12. SQL Tuning

1. Oracle RAC

Oracle RAC (Real Application Clusters) is a database clustering solution that enables multiple instances of the Oracle Database to run on multiple servers within a cluster, providing high availability, scalability, and fault tolerance for Oracle databases.

Why It's Important

Oracle RAC (Real Application Clusters) is important for Oracle DBAs because it provides high availability, scalability, and fault tolerance for databases by allowing multiple instances to access a single database simultaneously, ensuring continuous operation and efficient load balancing.

How to Improve Oracle RAC Skills

Improving Oracle Real Application Clusters (RAC) performance involves a multifaceted approach, focusing on optimizing database configuration, SQL queries, and underlying hardware resources. Here are concise tips:

1. Balance Workloads: Ensure workloads are evenly distributed across all nodes in the RAC environment. Use Oracle services for connection load balancing and application continuity.

2. Optimize Interconnects: Ensure the interconnects used for Cache Fusion are properly configured and utilize low-latency, high-bandwidth connections. Oracle's Interconnect Configuration Tips.

3. Tune GCS and GES: Tuning Global Cache Service (GCS) and Global Enqueue Service (GES) parameters can reduce block pinging and contention. GCS and GES Parameters.

4. SQL and PL/SQL Optimization: Use Oracle's SQL Trace and TKPROF for identifying and optimizing high-load SQL queries. SQL Tuning Guide.

5. Use Automatic Workload Repository (AWR): Analyze AWR reports to identify bottlenecks and understand database performance trends. AWR Report Analysis.

6. Implement Oracle Automatic Storage Management (ASM): ASM provides optimized file storage management, improving database performance and reliability. Oracle ASM.

7. Upgrade and Patch Regularly: Keep your Oracle RAC environment up to date with the latest patches and version upgrades to benefit from performance improvements and bug fixes. Oracle Patching Guide.

8. Monitor and Tune Memory: Adjust memory allocation for Oracle RAC components, including SGA and PGA, to ensure optimal performance. Memory Configuration and Use.

For a deeper dive into Oracle RAC tuning and best practices, refer to Oracle's official documentation and resources.

How to Display Oracle RAC Skills on Your Resume

2. Data Guard

Data Guard is a feature of Oracle databases that provides high availability, data protection, and disaster recovery for enterprise data. It enables the creation and management of one or more standby databases to protect Oracle database data from failures, disasters, errors, and data corruptions.

Why It's Important

Data Guard is crucial for an Oracle DBA as it ensures data availability, data protection, and disaster recovery by maintaining a standby database that automatically synchronizes with the primary database, facilitating seamless failover and minimal downtime.

How to Improve Data Guard Skills

To improve Oracle Data Guard, follow these concise yet effective strategies:

1. Optimize Redo Transport: Ensure the network is adequately configured for redo data transmission. Use the SYNC or ASYNC mode appropriately based on your performance and data protection needs. Redo Transport Services

2. Tune Log Apply Services: Adjust the LOG_ARCHIVE_MAX_PROCESSES parameter to ensure efficient log apply rates on the standby database. This can significantly reduce apply lag. Managing Standby Redo Log Files

3. Monitor and Analyze Performance: Regularly monitor Data Guard performance using Oracle Enterprise Manager or through querying relevant performance views like V$DATAGUARD_STATS. Address any identified bottlenecks. Monitoring Data Guard

4. Use Fast-Start Failover: Enable Fast-Start Failover to automate the failover process, reducing downtime and ensuring high availability. Fast-Start Failover

5. Implement Real-Time Apply: Start real-time apply on the standby database to apply redo data as soon as it is received, minimizing the data loss window. Real-Time Apply

6. Utilize Compression: For the redo data, use the COMPRESSION attribute in the LOG_ARCHIVE_DEST_n parameter to compress redo data, reducing network bandwidth requirements. Redo Transport Compression

7. Regularly Review Configuration: Periodically review and adjust Data Guard configuration settings to adapt to changing workloads and business requirements. This includes adjusting parameters related to redo transport, standby redo logs, and disk space requirements.

By implementing these strategies, you can enhance the performance and reliability of your Oracle Data Guard setup.

How to Display Data Guard Skills on Your Resume

3. RMAN

RMAN (Recovery Manager) is an Oracle Database utility for backup, restoration, and recovery operations, allowing DBAs to perform efficient data protection and disaster recovery tasks.

Why It's Important

RMAN (Recovery Manager) is crucial for Oracle DBAs as it provides a comprehensive, efficient, and robust solution for backup, restoration, and recovery operations, ensuring data integrity and minimizing downtime in case of data loss or corruption.

How to Improve RMAN Skills

To improve RMAN (Recovery Manager) for Oracle Database, consider the following steps:

1. Optimize Backup Performance: Use the COMPRESSION option to reduce backup size and time. Oracle Docs on Backup Compression

2. Implement Block Change Tracking: This speeds up incremental backups by tracking changed blocks. Block Change Tracking

3. Configure Parallelism: Adjust the PARALLELISM parameter to use multiple channels for faster backups. RMAN Parallelism

4. Use Incrementally Updated Backups: This technique reduces the amount of time needed to recover data. Incrementally Updated Backups

5. Monitor and Tune RMAN: Regularly review RMAN output and use the V$ performance views to identify bottlenecks. Monitoring RMAN

6. Leverage RMAN Scripts: Automate and standardize backup procedures with scripts to ensure consistency. RMAN Scripts

7. Keep Your RMAN Catalog Optimized: Regularly purge obsolete backups and crosscheck backups to keep the RMAN catalog in sync. Maintaining RMAN Repository

8. Stay Updated: Ensure RMAN and your Oracle Database are on the latest version to take advantage of performance improvements and new features. Oracle Database Software Downloads

Implementing these strategies will help in optimizing RMAN for better performance, reliability, and efficiency in managing Oracle Database backups.

How to Display RMAN Skills on Your Resume

4. ASM (Automatic Storage Management)

Automatic Storage Management (ASM) is an Oracle Database feature that provides optimized storage management and disk redundancy, automatically managing file layout and striping across disks for improved performance and reliability.

Why It's Important

ASM (Automatic Storage Management) is important for an Oracle DBA because it simplifies database storage management by automatically managing disk groups, optimizing storage performance, and providing high availability, reducing the need for manual intervention and expertise in storage configuration.

How to Improve ASM (Automatic Storage Management) Skills

To improve ASM (Automatic Storage Management) in Oracle environments, focus on the following strategies:

1. Optimize Disk Groups: Properly size and configure disk groups to balance performance and redundancy. Use the appropriate redundancy level (External, Normal, or High) based on your availability requirements. Oracle Docs - Managing Disk Groups

2. Monitor and Manage Space: Regularly monitor ASM disk groups for space usage and perform necessary rebalancing actions to ensure even distribution of data across disks. Use the asmcmd and v$ASM_DISKGROUP views for monitoring. Oracle Docs - Viewing ASM Disk Group Information

3. Upgrade and Patch ASM Regularly: Stay current with the latest ASM versions and patches to leverage improvements and bug fixes. Review Oracle’s ASM upgrade guide for best practices. Oracle Support - ASM Upgrade Guide

4. Implement ASM Best Practices: Follow Oracle’s ASM best practices guide for configuration, performance tuning, and troubleshooting. This includes using features like ASM Intelligent Data Placement (IDP) and Automatic Disk Online (ADO). Oracle Base - ASM Best Practices

5. Use ASM Filter Driver (ASMFD): If applicable, use ASM Filter Driver for better management of disk devices by ASM, including improved security and disk labeling features. Oracle Docs - About Oracle ASM Filter Driver

6. Enable ASM Disk Scrubbing: Periodically run disk scrubbing to detect and repair logical corruptions on disk. This proactive measure helps maintain data integrity. Oracle Docs - Disk Scrubbing

For comprehensive improvement, regularly review Oracle’s documentation and consider engaging with the Oracle community for insights and updates.

How to Display ASM (Automatic Storage Management) Skills on Your Resume

5. PL/SQL

PL/SQL (Procedural Language/Structured Query Language) is Oracle's procedural extension to SQL, allowing for complex programming constructs such as loops, conditions, and variables within the Oracle database environment, enabling the creation and execution of stored procedures, functions, packages, and triggers for enhanced data manipulation and application logic.

Why It's Important

PL/SQL, Oracle's procedural extension to SQL, is crucial for an Oracle DBA because it enables the creation and execution of complex database scripts, functions, procedures, and triggers directly within the Oracle database. This enhances data processing efficiency, ensures data integrity, and allows for the implementation of business logic at the database level, optimizing overall database management and performance.

How to Improve PL/SQL Skills

Improving PL/SQL performance involves optimizing both the PL/SQL code and how it interacts with the Oracle database. Here are concise steps with relevant resources:

1. Use Bulk Operations: Instead of row-by-row processing, use bulk operations (BULK COLLECT and FORALL) to minimize context switches. Oracle Bulk Collection & FORALL.

2. Optimize SQL Calls: Minimize the number of SQL calls within PL/SQL blocks. Use joins instead of multiple queries and ensure SQL statements are efficiently written. Tuning SQL Code.

3. Use PL/SQL Collections Wisely: Proper use of collections can significantly improve performance. Understand the differences and use cases for Associative Arrays, Nested Tables, and VARRAYs. Using PL/SQL Collections and Records.

4. Cache Frequently Used Data: Use PL/SQL function result caching to store results of frequently called functions. Result Cache.

5. Avoid PL/SQL and SQL Context Switches: Minimize the number of switches between SQL and PL/SQL to reduce overhead. This includes using SQL within PL/SQL efficiently. Reducing PL/SQL and SQL Context Switches.

6. Use Native Compilation: Compile PL/SQL code natively for better performance. Native PL/SQL Compilation.

7. Optimize Looping Constructs: Efficiently use loops, and when possible, replace them with set-based operations. Loop Optimization.

8. Instrument Your Code: Use the DBMS_PROFILER and DBMS_HPROF utilities to find bottlenecks and understand where the code spends most of its time. DBMS_PROFILER.

9. Keep PL/SQL Blocks Short and Simple: Break complex processes into smaller, modular procedures or functions for clarity and easier maintenance. PL/SQL Procedure.

10. Stay Informed on Best Practices: Oracle’s documentation and community forums are great resources for up-to-date best practices and performance tips. Oracle PL/SQL Documentation.

By focusing on these areas, an Oracle DBA can significantly improve the efficiency and performance of PL/SQL operations within an Oracle database environment.

How to Display PL/SQL Skills on Your Resume

6. Oracle Exadata

Oracle Exadata is a high-performance data platform, specifically engineered to run Oracle Database workloads, optimizing performance, scalability, and reliability for both OLTP (Online Transaction Processing) and OLAP (Online Analytical Processing) applications. It combines software and hardware engineered together to provide a complete, integrated solution for managing and processing large volumes of data efficiently.

Why It's Important

Oracle Exadata is important for an Oracle DBA because it offers a highly optimized, pre-configured platform specifically designed for running Oracle Database workloads, providing enhanced performance, scalability, and reliability.

How to Improve Oracle Exadata Skills

To improve Oracle Exadata performance and efficiency, an Oracle DBA should focus on the following key areas:

1. SQL Optimization: Ensure SQL queries are well-optimized by using tools like SQL Tuning Advisor and SQL Access Advisor. Oracle SQL Tuning

2. Storage Configuration: Properly configure storage settings, such as cell offloading and smart scans, to enhance data retrieval processes. Exadata Smart Scan

3. Resource Management: Implement resource management practices to allocate system and database resources efficiently among users and applications. Resource Management on Exadata

4. Indexing Strategy: Maintain an optimal indexing strategy to speed up query processing. Assess the need for indexes carefully, especially given Exadata's ability to perform full scans efficiently. Managing Indexes

5. Regular Maintenance: Perform regular maintenance tasks such as system health checks, database statistics updates, and patch applications to ensure the environment is running on the latest and most secure version. Exadata Maintenance Guide

6. Backup and Recovery: Establish a robust backup and recovery strategy to protect data and ensure business continuity. RMAN Backup on Exadata

7. Monitoring and Alerting: Utilize Oracle Enterprise Manager (OEM) for comprehensive monitoring, performance tuning, and alerting to proactively address potential issues. Oracle Enterprise Manager

By focusing on these areas, an Oracle DBA can significantly improve the performance, efficiency, and reliability of an Oracle Exadata environment.

How to Display Oracle Exadata Skills on Your Resume

7. Performance Tuning

Performance tuning in the context of an Oracle DBA involves optimizing database system settings, SQL queries, and server configurations to improve the efficiency, speed, and overall performance of the Oracle database.

Why It's Important

Performance tuning is crucial for an Oracle DBA because it optimizes database efficiency, ensuring fast query responses, maximizes resource utilization, and enhances overall system performance, leading to improved user satisfaction and productivity.

How to Improve Performance Tuning Skills

To improve performance tuning as an Oracle DBA, follow these concise steps:

1. Identify Performance Issues: Use Oracle's Automatic Workload Repository (AWR) and Automatic Database Diagnostic Monitor (ADDM) to identify bottlenecks.

2. Optimize SQL Queries: Use SQL Tuning Advisor for recommendations on optimizing SQL statements.

3. Index Optimization: Review and optimize indexes. Consider Oracle's guidelines for index optimization.

4. Memory Management: Adjust memory allocations for optimal performance by following Oracle's memory management advice.

5. Database Configuration: Review and fine-tune database parameters in the SPFILE or PFILE.

6. Disk I/O Optimization: Optimize disk I/O by using Automatic Storage Management (ASM).

7. Concurrency and Locks: Monitor and resolve locking issues and concurrency bottlenecks with Oracle's concurrency advice.

8. Partitioning Large Tables: Use Table Partitioning to improve query performance on large tables.

9. Regular Maintenance Tasks: Perform regular database maintenance tasks such as statistics gathering for the optimizer.

10. Use Oracle Enterprise Manager (OEM): Leverage OEM for comprehensive performance monitoring and tuning.

By methodically following these steps and continuously monitoring your Oracle database, you can significantly improve its performance.

How to Display Performance Tuning Skills on Your Resume

8. Oracle Enterprise Manager (OEM)

Oracle Enterprise Manager (OEM) is a comprehensive management tool for Oracle environments, providing DBAs with the ability to monitor, manage, and optimize Oracle databases, as well as middleware and applications, all from a single interface.

Why It's Important

Oracle Enterprise Manager (OEM) is crucial for an Oracle DBA because it provides a comprehensive management solution for Oracle databases, allowing for simplified administration, performance monitoring, configuration management, and automation of routine tasks, enhancing efficiency and reducing the complexity of database management.

How to Improve Oracle Enterprise Manager (OEM) Skills

Improving Oracle Enterprise Manager (OEM) for an Oracle DBA involves optimizing performance, enhancing security, and ensuring efficient management. Here’s a concise guide:

1. Performance Tuning: Regularly monitor and tune the performance of OEM itself. Use the Oracle Management Repository (OMR) to identify performance bottlenecks. Oracle’s Performance Tuning Guide provides comprehensive insights.

2. Patch Management: Keep OEM and its components up-to-date with the latest patches to improve security and functionality. Utilize Oracle’s Patch Management Documentation for guidance.

3. Security Enhancements: Secure the OEM environment by implementing SSL, strengthening user authentication, and applying Oracle’s security best practices. The Oracle Security Guide outlines essential security measures.

4. Efficient Use of Templates and Baselines: Create and use monitoring templates and deployment procedures for consistent configurations across your environment, reducing manual effort and errors. Learn more through Oracle’s Enterprise Manager Cloud Control Administrator’s Guide.

5. Leverage Automation: Automate routine tasks such as database backups, patching, and performance tuning to increase efficiency. Oracle’s Enterprise Manager Cloud Control Automation Framework offers tools for this purpose.

6. Education and Training: Continuously improve your skills and knowledge about OEM features and best practices through Oracle University and the Oracle Learning Library.

7. Community Engagement: Participate in Oracle forums and user groups to exchange knowledge and learn from the experiences of others. The Oracle Community is a valuable resource.

By focusing on these areas, you can significantly improve the efficiency, security, and performance of Oracle Enterprise Manager in your role as an Oracle DBA.

How to Display Oracle Enterprise Manager (OEM) Skills on Your Resume

9. Oracle Cloud Infrastructure (OCI)

Oracle Cloud Infrastructure (OCI) is Oracle's cloud computing platform offering high-performance computing, storage, and networking services, designed to run, manage, and scale Oracle databases and applications securely in the cloud with optimized performance and cost efficiency.

Why It's Important

Oracle Cloud Infrastructure (OCI) is important for an Oracle DBA because it provides a highly scalable, secure, and optimized cloud environment tailored for Oracle databases, enabling seamless migration, management, and enhanced performance of database workloads with minimal downtime and reduced operational costs.

How to Improve Oracle Cloud Infrastructure (OCI) Skills

Improving Oracle Cloud Infrastructure (OCI) for an Oracle DBA involves enhancing performance, security, and cost-efficiency. Here are concise strategies:

1. Optimize Performance: Use OCI's Autonomous Database to automate routine DBA tasks, ensuring high performance and reliability. Leverage Oracle's Exadata Cloud Service for workloads requiring intense compute and I/O performance.

2. Implement Strong Security: Apply OCI's Identity and Access Management (IAM) to control who can access what in your Oracle databases, ensuring only authorized access.

3. Cost Management: Utilize OCI's Cost Management Tools to monitor and optimize your spending, identifying underutilized resources.

4. Backup and Disaster Recovery: Implement regular backups and establish a disaster recovery plan using OCI's Database Backup Service and Data Guard for high availability.

5. Stay Updated: Regularly check Oracle's Cloud Learning Subscription for the latest courses and certifications on OCI to keep your skills current.

By focusing on these areas, an Oracle DBA can significantly improve their organization's deployment on Oracle Cloud Infrastructure.

How to Display Oracle Cloud Infrastructure (OCI) Skills on Your Resume

10. Oracle GoldenGate

Oracle GoldenGate is a comprehensive software package for real-time data integration and replication in heterogeneous IT environments. It enables high availability solutions, real-time data integration, transactional change data capture, data replication, transformations, and verification between operational and analytical enterprise systems. For an Oracle DBA, it's a powerful tool for achieving data consistency, ensuring disaster recovery, and facilitating real-time data warehousing and reporting by efficiently moving data across Oracle databases and other supported platforms with minimal impact on system performance.

Why It's Important

Oracle GoldenGate is important for an Oracle DBA because it enables real-time data integration and replication across heterogeneous databases, ensuring high availability, disaster recovery, and real-time data warehousing, without impacting system performance.

How to Improve Oracle GoldenGate Skills

To improve Oracle GoldenGate performance and efficiency, consider the following strategies tailored for an Oracle DBA:

1. Optimize Network Configuration: Ensure low latency and high bandwidth for data transmission. Use Oracle’s recommendations for network optimization.

2. Tune Oracle Database: Optimize the source database by adjusting parameters like LOG_BUFFER, SDU, and TDU. Refer to Oracle Database Performance Tuning Guide.

3. Use Integrated Capture and Replicat Modes: Leveraging Oracle's database log mining server, integrated modes provide better performance for high-load environments. Details on integrated capture and replicat can be found in the Oracle GoldenGate Documentation.

4. Parallel Replicat: Implement parallel replicat processes to enhance throughput on multi-core systems. Guidance can be found in Oracle’s Replicat documentation.

5. Batch SQL Operations: Reducing the commit frequency can improve performance. Use the GROUPTRANSOPS parameter as suggested in GoldenGate Tuning Parameters.

6. Optimize Trail Files: Minimize I/O operations by optimizing the location and size of trail files. Considerations for trail file management are covered in the Managing Trail Files section.

7. Monitor and Analyze: Regularly monitor GoldenGate processes and Oracle DB performance. Utilize tools like Oracle GoldenGate Director and Oracle Enterprise Manager for insights and tuning. More on monitoring tools can be found here.

8. Educate and Update: Stay informed about new features and best practices by following Oracle's GoldenGate blog and My Oracle Support for the latest updates and patches.

By focusing on these areas, an Oracle DBA can significantly enhance the performance and reliability of Oracle GoldenGate implementations.

How to Display Oracle GoldenGate Skills on Your Resume

11. Oracle E-Business Suite

Oracle E-Business Suite is an integrated set of business applications for automating enterprise functions, including finance, HR, supply chain, and customer relationship management, designed to run on Oracle Database, requiring Oracle DBAs to manage and optimize the database environment for performance, availability, and security.

Why It's Important

Oracle E-Business Suite is important for an Oracle DBA because it is a comprehensive suite of global business applications that requires efficient database management and optimization, directly leveraging the DBA's expertise in ensuring high performance, availability, and security of the underlying Oracle databases.

How to Improve Oracle E-Business Suite Skills

To improve Oracle E-Business Suite as an Oracle DBA, focus on these key areas:

1. Performance Tuning: Optimize database performance by regularly analyzing and tuning SQL queries, using tools like Oracle's SQL Tuning Advisor and Automatic Workload Repository (AWR) for insights. Oracle Performance Tuning

2. Patching and Upgrades: Regularly apply Oracle patches and updates to both the E-Business Suite and the Oracle Database to ensure security, compliance, and access to new features. Oracle E-Business Suite Patching

3. Backup and Recovery: Implement robust backup and recovery strategies using Oracle Recovery Manager (RMAN) and ensure that backups are tested regularly. Oracle Backup and Recovery

4. Security: Enhance security by encrypting sensitive data using Oracle Advanced Security, regularly auditing database activities, and applying the principle of least privilege for database access. Oracle Advanced Security

5. System Monitoring: Use Oracle Enterprise Manager to monitor the health and performance of the E-Business Suite and Oracle Database, setting alerts for potential issues. Oracle Enterprise Manager

6. Customization Management: Manage customizations efficiently, ensuring they are well-documented and compatible with Oracle standards to avoid conflicts during upgrades.

7. Database Optimization: Regularly review and optimize database configuration settings, such as memory allocation and storage, to ensure efficient operation.

8. Collaborate with Application Teams: Work closely with E-Business Suite application teams to understand their requirements and optimize the database accordingly.

Remember, continuous learning and staying updated with the latest Oracle technologies and best practices are essential for a DBA to effectively manage and improve the Oracle E-Business Suite environment.

How to Display Oracle E-Business Suite Skills on Your Resume

12. SQL Tuning

SQL Tuning involves optimizing the performance of SQL queries within an Oracle database by rewriting queries, creating or modifying indexes, adjusting database parameters, and utilizing Oracle-specific features and tools (like SQL Tuning Advisor) to reduce resource consumption and improve execution speed.

Why It's Important

SQL tuning is crucial for an Oracle DBA because it optimizes query performance, reducing resource consumption and enhancing overall database efficiency, leading to faster response times and improved user satisfaction.

How to Improve SQL Tuning Skills

Improving SQL tuning in Oracle involves a combination of understanding query execution plans, leveraging Oracle's built-in tuning tools, and applying best practices in SQL and database design. Here are key steps for an Oracle DBA:

1. Understand Execution Plans: Use the EXPLAIN PLAN statement to understand how Oracle executes your SQL queries. This helps in identifying bottlenecks like full table scans, expensive joins, or improper use of indexes.

2. Use Oracle's Tuning Tools: Leverage tools such as SQL Tuning Advisor (Oracle Docs) and Automatic Database Diagnostic Monitor (ADDM) (Oracle Docs) to automatically identify and fix performance issues.

3. Optimize Index Usage: Create appropriate indexes based on query patterns, and ensure they are used efficiently by queries. Remember to balance between speeding up query processing and slowing down data modification operations.

4. Optimize SQL Statements: Write efficient SQL by avoiding unnecessary columns in the select list, using EXISTS instead of IN for subqueries, and employing table joins appropriately.

5. Database Statistics: Regularly gather and update database statistics to help the Oracle optimizer choose the most efficient execution plans (Oracle Docs).

6. SQL Plan Management: Use SQL Plan Management (SPM) to maintain consistent performance across SQL execution plans, preventing regressions due to plan changes (Oracle Docs).

7. Partitioning: For large tables, consider partitioning to improve query performance and manageability (Oracle Docs).

8. Use Oracle Hints: While not always recommended as a first step, using Oracle hints can force certain behaviors like the choice of an index or join method. However, use them judiciously and test thoroughly (Oracle Docs).

For a deeper dive into SQL tuning for Oracle databases, consider Oracle's own documentation and resources, as well as reputable books and online courses dedicated to Oracle performance tuning.

How to Display SQL Tuning Skills on Your Resume