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🚀 Unlocking Oracle Performance with SESSION_CACHED_CURSORS and ARRAYSIZE! For Oracle DBAs and developers, optimizing even small parameters can lead to big performance gains. Here’s how to leverage SESSION_CACHED_CURSORS and ARRAYSIZE to reduce parsing overhead and optimize data retrieval. 🔧 Setting & Checking Values 1️⃣ SESSION_CACHED_CURSORS – Minimizes parsing for frequently reused SQL statements by caching them. Check the Current Value: SELECT name, value FROM v$parameter WHERE name = 'session_cached_cursors'; Set an Optimal Value (starting point 50–100): ALTER SYSTEM SET SESSION_CACHED_CURSORS = 100 SCOPE=BOTH; 2️⃣ ARRAYSIZE – Controls rows fetched per network trip, reducing latency. Check the Current ARRAYSIZE in SQL*Plus: SHOW ARRAYSIZE; Set ARRAYSIZE (try 100 as a starting point): SET ARRAYSIZE 100; ✨ Why This Matters Reduced Parsing Overhead: SESSION_CACHED_CURSORS cuts down on repetitive parsing, saving CPU cycles and reducing library cache contention. Faster Data Retrieval: ARRAYSIZE reduces network round-trips, speeding up queries that retrieve large result sets. 💡 Pro Tip: After adjusting, monitor session cursor cache hits in V$SYSSTAT for SESSION_CACHED_CURSORS and test query performance with different ARRAYSIZE values for the best results. Optimize these parameters, and you’ll see your Oracle Database performance soar! 🚀 Thank You DM||Follow Packiyaraj Raja Learn more about topic #sqldeveloper #plsqldeveloper #oracle #database

In Oracle Database 23ai you can enable one user to query every table owned by another with GRANT SELECT ANY TABLE ON SCHEMA <table_owner> TO <app_user> View details of these grants in the *_SCHEMA_PRIVS views Diana Robete tests it out

Want to see how Oracle Database 23c provides configuration flexibility to Database Administrators and organize database connections effectively? Go ahead and check out our Multi-pool Database Resident Connection Pooling (DRCP) feature - https://lnkd.in/ggcmyE3i #oracledba #oracledatabase #databasemanagement

Dealing with "Snapshot too old" Error in Oracle Database? Here are 10 Solutions! Are you encountering the dreaded "Snapshot too old" error in your Oracle database? Don't panic! Here are 10 effective solutions to tackle this issue: 1️⃣ Commit More Frequently: Break down long transactions into smaller ones to reduce undo data usage. 2️⃣ Increase UNDO Tablespace Size: Expand the undo tablespace to accommodate more undo data. 3️⃣ Adjust UNDO_RETENTION Parameter: Extend the time Oracle retains undo data to prevent premature overwrite. 4️⃣ Optimize SQL Statements: Fine-tune your queries and indexing strategies to minimize undo usage. 5️⃣ Use Read Consistency: Implement appropriate read consistency mechanisms to reduce undo requirements. 6️⃣ Implement Row-level Locking: Reduce contention by employing row-level locking strategies. 7️⃣ Check for Long-Running Queries: Identify and optimize queries that run for extended periods. 8️⃣ Monitor Undo Tablespace Usage: Keep an eye on undo tablespace growth and consumption. 9️⃣ Review Database Design: Assess your database schema for optimization opportunities. 🔟 Consult Oracle Documentation and Support: Seek guidance from Oracle's resources and support for tailored assistance. Facing the "Snapshot too old" error doesn't have to be a nightmare. With these solutions, you can effectively address the issue and keep your Oracle database running smoothly Thank You DM|Follow Packiyaraj Raja Learn more about Topic. #sqldeveloper #plsqldeveloper #oracle #database

Delve into the future of database testing with Oracle RAT in our latest blog! Explore how this powerful tool streamlines changes, reduces risks and ensures peak performance. Ready to future-proof your databases? Discover Oracle RAT today! https://lnkd.in/g63cNJqF #newtglobal #DMAP #Oracle #RAT #database

How to check last stats gather history in #Oracle Database #oracledatabase #oracledba #oracledatabaseadministrator

How to check last stats gather history in #Oracle Database #oracledatabase #oracledba #oracledatabaseadministrator

🚀 Unlock Hidden Performance Features in Oracle 19c 🚀 Did you know that Oracle 19c offers powerful features that many developers aren’t fully using? These features can significantly boost performance in your databases. Here are a few that stand out: 1. Automatic Indexing Oracle creates and manages indexes for you! Example: A query went from 10 seconds to less than 1 second just by allowing Oracle to index the right column. 2. Real-Time Statistics Keep your queries running fast with real-time data. Example: Queries executed 30% faster after enabling real-time stats compared to relying on scheduled updates. 3. SQL Quarantine Stop resource-hungry queries from slowing down your system. Example: A complex query was automatically blocked from running repeatedly, preventing CPU overload. 4. Automatic SQL Plan Management (SPM) SPM ensures your queries keep running fast, even after upgrades. Example: A system slowdown was fixed automatically by reverting to a known-good execution plan. 5. In-Memory Enhancements Boost analytic queries with faster in-memory data processing. Example: A business intelligence query ran 4x faster after loading the data into memory. 6. Hybrid Partitioned Tables Speed up queries by partitioning large tables with a mix of internal and external storage. Example: Accessing recent data was 5x faster by using only internal partitions. 7. JSON Performance Work faster with JSON data using Oracle's improved indexing. Example: JSON queries saw a 40% performance improvement with enhanced indexing. 8. Dynamic PGA Memory Management Oracle automatically adjusts memory to avoid bottlenecks. Example: Queries executed 20% faster during peak traffic thanks to better memory allocation. Don’t miss out on these Oracle 19c features that can dramatically improve performance in your database systems! Thank You DM||Follow Packiyaraj Raja Learn more about Topic #sqldeveloper #plsqldeveloper #oracle #database

All about performance in Oracle 19c database

Check out the updated Oracle Database Resident Connection Pooling (DRCP) Technical Brief with examples and details on the latest Oracle Database 23ai DRCP features and enhancements! https://lnkd.in/gHvj8qhS #drcp #oracle #database #pooling