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Tanel Poder Blog

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Practical Linux Performance & Troubleshooting Intern doFollow
Dimensional Analysis of System Performance with eBPF & xtop Intern doFollow
Efficient, Always-On Thread Level Observability with eBPF Extern doFollow
Testing the Datadog Explain Plan Visualizer with Oracle execution plans Intern doFollow
New scripts: vstat.sql & dstat.sql for showing Oracle Sysmetric history with 1-minute granularity Intern doFollow
xb.sql and xbi.sql - Explain Oracle Execution Plans Better! (Part 3 - Cardinality Misestimates) Intern doFollow
tabhisthybrid.sql: Display Oracle hybrid histograms and filter cardinality estimates Intern doFollow
pqr.sql: Generate QR Codes with Pure SQL in PostgreSQL Intern doFollow
The xCapture and xtop eBPF tools are now in beta, with a demo dataset Intern doFollow
CatVector Demo Website Intern doFollow
New Tool: xstack - Completely Passive eBPF Linux Stack Profiling Without Any Tracepoints Intern doFollow
Webinar: Testing High-Performance Vector Search With CatBench on Google AlloyDB Omni Intern doFollow
My Blog Has Turned 18 Years Old Intern doFollow
Catbench Vector Search App has Postgres Query Throughput and Latency Monitoring Now Intern doFollow
Using Postgres pg_test_fsync tool for testing low latency writes Intern doFollow
Find which Oracle SQL_ID hits the SQL*Net break/reset to client event Intern doFollow
New Tool: lsds - List All Linux Block Devices and Settings in One Place Intern doFollow
Optimizing eBPF I/O latency accounting when running 37M IOPS on a 384-CPU server Intern doFollow
xCapture v3: Linux Performance Analysis with Modern eBPF and DuckDB Intern doFollow
Core Function Words Translated between English, Spanish, German, French and Swedish Intern doFollow
When eBPF task->stack->pt_regs reads return garbage on the latest Linux kernels, blame Fred! Intern doFollow
TracepointArgs: List Any Linux Tracepoint with Their Arguments, Datatypes and Related Structs Intern doFollow
CatBench Vector Search Playground Intern doFollow
Embedding Vectors of the Same Image Rotated Over 360 Degrees Intern doFollow
SQL Plan Execution FlameGraphs with Loop and Row Counts Intern doFollow
Embedding Vectors vs. Vector Embeddings Intern doFollow
Video: Testing the Silk Platform in 2024 Interview (12 minutes) Intern doFollow
Testing the Silk Platform in 2024: Achieving 20 GiB/s I/O Throughput in a Single Cloud VM Intern doFollow
Visualizing and Comparing Embedding Vectors as Heatmaps (Videos) Intern doFollow
Visualizing and Comparing Embedding Vectors as Heatmaps Intern doFollow
Tracking, not Tracing, Linux Thread Activity for Complete System Visibility (eBPF Summit) Intern doFollow
Python Supports Profiling with Perf - How Does It Work? Intern doFollow
Can a User Process Consume Kernel Mode CPU Without a Syscall? Intern doFollow
Next Big Thing: X-Ray Vision for Linux Systems with eBPF Intern doFollow
Syscallargs: List All Linux System Calls With Their Arguments Intern doFollow
RTX4090 converted into an eGPU Intern doFollow
Oracle Hint Scopes and Join Level Cardinality Hint Intern doFollow
New Commenting System Intern doFollow
Oracle Shared Pool Internals: Allocated Chunk Status Indicators in Heap Dumps Intern doFollow
Oracle Index Parallel Degree Fix After Parallel Creation or Rebuild Intern doFollow
Report Current Oracle Session Wait Chains from GV$SESSION without ASH Intern doFollow
Advanced Oracle Troubleshooting Guide, Part 13: OStackProf for Linux, Unix & MacOSX Clients Intern doFollow
Testing Oracle's Use of Optane Persistent Memory, Part 2 - Fast Log File Sync Waits Intern doFollow
Testing Oracle's Use of Optane Persistent Memory, Part 1 - Low Latency Commits Intern doFollow
MySQL Now Shows its Thread Names at OS Level for Better Troubleshooting Intern doFollow
xb.sql and xbi.sql - Explain Oracle Execution Plans Better! (Part 2) Intern doFollow
My New Learning Platform and What I'm Up To in 2022 Intern doFollow
Achieving 10 GB/s Scanning Rate in a Single Cloud VM Intern doFollow
Testing The Silk Platform - Hands-On Technical Analysis of High-Performance I/O in the Cloud Intern doFollow
Virtual Conference: Troubleshooting Very Complex Oracle Performance Problems Intern doFollow
Do Not Use '>' in Your Command Prompt (and How to Stay Safe in Shell) Intern doFollow
Is Your Linux Version Hiding Interrupt CPU Usage From You? Intern doFollow
Video: High Performance Block I/O on Linux Intern doFollow
Achieving 11M IOPS & 66 GiB/s IO on a Single ThreadRipper Workstation Intern doFollow
Oracle Wait Event Name vs. Display Name Intern doFollow
Measuring Java JVM thread activity in Linux with task state sampling Intern doFollow
Reasons why SELECT * is bad for SQL performance Intern doFollow
High System Load with Low CPU Utilization on Linux? Intern doFollow
Hacking Session: 7 Levels of Hint Invalidity in Oracle SQL Intern doFollow
Hacking Session: Oracle SQL Monitoring - Understanding the Execution Timeline column and CPU usage Intern doFollow
Virtual Conference: Systematic Oracle SQL Optimization Interview Videos Intern doFollow
Oracle Fatal Background Processes Intern doFollow
Virtual Conference Update: Systematic Oracle SQL Optimization in 2020 Intern doFollow
Oracle Shared Pool Internals: List Chunk Position in the LRU List Intern doFollow
SchedLat: a Low Tech Script for Measuring Process CPU Scheduling Latency on Linux Intern doFollow
Announcing My Retirement (in 2030)! Intern doFollow
ORA-12850: Could not allocate slaves on all specified instances error and a workaround for my scripts Intern doFollow
Oracle Performance Troubleshooting Without OS Access, Part 1: Identifying CPU Scheduling Latency Intern doFollow
Video: Troubleshooting Complex Oracle Performance Problems (Jan 2020) Intern doFollow
Hacking Session: Troubleshooting Complex Oracle Performance Problems (January 2020) Intern doFollow
help.sql: Show TPT Script Purpose and Syntax Intern doFollow
Oracle State Objects and Reading System State Dumps Hacking Session Video Intern doFollow
New scripts: xb.sql and xbi.sql - Explain Oracle Execution Plans Better! (Part 1) Intern doFollow
Dump Current Oracle SQL Execution Plan Line ID Using Oradebug Intern doFollow
pSnapper: Linux Process Snapper Page and Videos Intern doFollow
Announcing Linux Process Snapper tool and a Linux Troubleshooting Hacking Session (3rd April 9am PDT) Intern doFollow
What Caused This Wait Event: Using Oracle's wait_event[] tracing Intern doFollow
Tutorial: Troubleshooting Linux SSH Login Delay - Why does logging in always take 10 seconds? Intern doFollow
Practical Linux Performance & Application Troubleshooting Training Details and Table of Contents Intern doFollow
Scripts for Drilling Down Into Unknown Optimizer Changes Intern doFollow
Visualizing SQL Plan Execution Time With FlameGraphs Intern doFollow
Generate Oracle SQL Monitoring Reports as HTML using SQL Developer v18.3 (no Flash needed) Intern doFollow
Log file switch (checkpoint incomplete) wait events and LGWR waiting for checkpoint progress Intern doFollow
Oracle SQL Monitoring and Advanced ASH Usage Hacking Sessions! Intern doFollow
Oracle SQL Tuning training & Oracle Troubleshooting training and some Linux stuff too! Intern doFollow
Webinar: Troubleshooting a Complex Oracle Performance Issue Intern doFollow
My Performance & Troubleshooting scripts (TPT) for Oracle are now in GitHub and open sourced Intern doFollow
Video: Oracle X$TRACE, Wait Event Internals and Background Process Communication Intern doFollow
Secret Hacking Session: Oracle Background Process Communication, Exotic Wait Events and Some Tracing too Intern doFollow
Advanced Oracle Troubleshooting seminar in 2018! Intern doFollow
Apache Impala Internals Deep Dive with Tanel Poder + Gluent New World Training Month Intern doFollow
GNW01: In-Memory Processing for Databases Intern doFollow
My BIWA Summit Presentations Intern doFollow
RAM is the new disk – and how to measure its performance – Part 3 – CPU Instructions & Cycles Intern doFollow
My New Youtube Channel Intern doFollow
Troubleshooting Another Complex Performance Issue – Oracle direct path inserts and SEG$ contention Intern doFollow
SQL Monitoring in Oracle Database 12c Intern doFollow
Advanced Oracle Troubleshooting v2.5 (with 12c stuff too) Intern doFollow
RAM is the new disk – and how to measure its performance – Part 2 – Tools Intern doFollow
RAM is the new disk – and how to measure its performance – Part 1 – Introduction Intern doFollow
The Hybrid World is Coming Intern doFollow
Old ventures and new adventures Intern doFollow
Advanced Oracle Troubleshooting Guide – Part 12: control file reads causing enq: SQ – contention waits? Intern doFollow
Sqlplus is my second home, part 8: Embedding multiple sqlplus arguments into one variable Intern doFollow
Oracle Exadata Performance: Latest Improvements and Less Known Features Intern doFollow
Oracle In-Memory Column Store Internals – Part 1 – Which SIMD extensions are getting used? Intern doFollow
About index range scans, disk re-reads and how your new car can go 600 miles per hour! Intern doFollow
Combining Bloom Filter Offloading and Storage Indexes on Exadata Intern doFollow
What the heck are the /dev/shm/JOXSHM_EXT_x files on Linux? Intern doFollow
Oracle Memory Troubleshooting, Part 4: Drilling down into PGA memory usage with V$PROCESS_MEMORY_DETAIL Intern doFollow
Slides of my previous presentations Intern doFollow
Where does the Exadata storage() predicate come from? Intern doFollow
Oracle X$ tables – Part 1 – Where do they get their data from? Intern doFollow
cell flash cache read hits vs. cell writes to flash cache statistics on Exadata Intern doFollow
Hard Drive Predictive Failures on Linux and Exadata Intern doFollow
When do Oracle Parallel Execution Slaves issue buffered physical reads – Part 2? Intern doFollow
When do Oracle Parallel Execution Slaves issue buffered physical reads – Part 1? Intern doFollow
Diagnosing buffer busy waits with the ash_wait_chains.sql script (v0.2) Intern doFollow
SGA bigger than the amount of HugePages configured (Linux – 11.2.0.3) Intern doFollow
Why doesn’t ALTER SYSTEM SET EVENTS set the events or tracing immediately? Intern doFollow
Advanced Oracle Troubleshooting Guide – Part 11: Complex Wait Chain Signature Analysis with ash_wait_chains.sql Intern doFollow
Oracle Performance & Troubleshooting Online Seminars in 2013 Intern doFollow
Scalar Subqueries in Oracle SQL WHERE clauses (and a little bit of Exadata stuff too) Intern doFollow
ShowMOS: How to get rid of the annoying “The Page has Expired” dialog in My Oracle Support Intern doFollow
Oracle 12c: Scalar Subquery Unnesting transformation Intern doFollow
Oracle Database 12c R1 (12.1.0.1.0) is finally released! Intern doFollow
Getting the Most Out of ASH online seminar Intern doFollow
Forcing Smart Scans on Exadata – is the _serial_direct_read parameter safe to use in production? Intern doFollow
Debugger Dangers – Part 2 Intern doFollow
List Exadata Storage Cell disk summary with cellpd.sql and cellpdx.sql scripts Intern doFollow
List Exadata Disk Layout and Topology with the exadisktopo scripts Intern doFollow
V$CELL_THREAD_HISTORY – “ASH” for Exadata Storage Cells Intern doFollow
Understanding what a hint affects using the V$SQL_FEATURE views Intern doFollow
Listing Exadata storage cells and their configuration info from V$CELL_CONFIG Intern doFollow
Alter session force parallel query doesn’t really force anything Intern doFollow
asqlmon.sql: SQL Monitoring-like execution plan line level drilldown into SQL response time Intern doFollow
ExaSnapper 0.7 beta download and the hacking session videos Intern doFollow
Peeking into Linux kernel-land using /proc filesystem for quick’n’dirty troubleshooting Intern doFollow
Even more Snapper – v4.03 now works in SQL Developer too! Intern doFollow
Manual “before” and “after” snapshot support in Snapper v4 Intern doFollow
Snapper v4.02 and the Snapper launch party video Intern doFollow
Drilling Deep Into Exadata Performance with ASH, SQL Monitoring and Exadata Snapper – slides and a hacking session! Intern doFollow
Troubleshooting high CPU usage with poor-man’s stack profiler – in a one-liner! Intern doFollow
Session Snapper v4 – The World’s Most Advanced Oracle Troubleshooting Script! Intern doFollow
Sqlplus is my second home: Part 7 – Downloading files via sqlplus :-) Intern doFollow
Japanese translation of some of my blog articles Intern doFollow
What the heck is the INTERNAL_FUNCTION in execution plan predicate section? Intern doFollow
A tip for lazy Oracle users – type less with ANSI DATE and TIMESTAMP SQL syntax Intern doFollow
Snapper v3.61 released – and more work is in progress! Intern doFollow
Select statement generating redo – and lost write detection Intern doFollow
Sqlplus is my second home: Part 6 – Colorizing sqlplus and terminal output Intern doFollow
Optimizer statistics-driven direct path read decision for full table scans (_direct_read_decision_statistics_driven) Intern doFollow
The limitations of CURSOR_SHARING = FORCE and FORCE_MATCHING_SIGNATURE for SQL plan stability Intern doFollow
MOATS-like sqlplus “top” utility for RAC Intern doFollow
Oradebug hanganalyze with a prelim connection and “ERROR: Can not perform hang analysis dump without a process state object and a session state object.” Intern doFollow
Advanced Oracle Troubleshooting Guide – Part 10: Index unique scan doing multiblock reads?! Intern doFollow
Where is LOB data stored? Intern doFollow
Exadata Smart Scan predicate offloading and sequence.NEXTVAL Intern doFollow
Create a database link with the new host:port/service syntax Intern doFollow
Oracle Core: Essential Internals for DBAs and Developers book by Jonathan Lewis Intern doFollow
Profiling trace files with preprocessor external tables in 11g and some parallel execution hacking Intern doFollow
Evil things are happening in Oracle Intern doFollow
What the heck is the SQL Execution ID – SQL_EXEC_ID? Intern doFollow
V8 Bundled Exec call – and Oracle Program Interface (OPI) calls Intern doFollow
Full scans, direct path reads and ORA-8103 error hacking session video Intern doFollow
Are you getting the most out of your Exadata performance? Part 1 Intern doFollow
What is the purpose of segment level checkpoint before DROP/TRUNCATE of a table? Intern doFollow
Another cache buffers chains latch contention troubleshooting example using LatchProf Intern doFollow
Tech Reviewer, Tech Reviewer! ;-) Intern doFollow
IOUG Select Journal Editor’s Choice Award 2011 Intern doFollow
Knowing what you want to achieve before thinking of how to achieve it – a query optimization example Intern doFollow
Running SELECT … INTO :bind_variable from SQL Intern doFollow
Latch contention troubleshooting case study and Flashback Database performance issues with LOBs Intern doFollow
MOATS: The Mother of All Tuning Scripts! Intern doFollow
An index of my TPT scripts Intern doFollow
LOBREAD SQL Trace entry in Oracle 11.2 (and tracing OPI calls with event 10051) Intern doFollow
Implicit datatype conversion in the parsing phase – something new I learned today! Intern doFollow
ORA-4031 errors, contention, cursor management issues and shared pool fragmentation – free secret seminar! Intern doFollow
Exadata CAN do smart scans on bitmap indexes Intern doFollow
Oracle Exadata Performance series – Part 1: Should I use Hugepages on Linux Database Nodes? Intern doFollow
Finding Oracle Homes which Oracle instances are using on Linux Intern doFollow
New cursor_bind_capture_destination parameter in Oracle 11.2.0.2 Intern doFollow
Performance Stories from Exadata Migrations Intern doFollow
Is this valid SQL syntax? :-) Intern doFollow
Snapper 3.52 – With Oracle 9.2 support! Intern doFollow
Asynch descriptor resize wait event in Oracle Intern doFollow
A little new feature for shared pool geeks :-) Intern doFollow
COUNT STOPKEY operation (the where ROWNUM <= N predicate) doesn't process over ~4 Billion rows and returns wrong results Intern doFollow
Read currently running SQL statement’s bind variable values using V$SQL_MONITOR.BIND_XML in Oracle 11.2 Intern doFollow
The most fundamental difference between hash and nested loop joins Intern doFollow
Oracle Closed World presentation links Intern doFollow
Which number takes more space in an Oracle row? Intern doFollow
Exadata v2 Smart Scan Performance Troubleshooting article Intern doFollow
Dropping and creating tables in read only tablespaces?! Intern doFollow
The full power of Oracle’s diagnostic events, part 2: ORADEBUG DOC and 11g improvements Intern doFollow
Oracle memory troubleshooting article Intern doFollow
Flexible Sqlplus command line history with RLWRAP Intern doFollow
Execution plan Quiz: Shouldn’t these row sources be the other way around ;-) Intern doFollow
Quiz: Explaining index creation Intern doFollow
cursor: pin S waits, sporadic CPU spikes and systematic troubleshooting Intern doFollow
KGH: NO ACCESS – Buffer cache inside streams pool too! Intern doFollow
Non-trivial performance problems Intern doFollow
Calculate SQL_ID and SQL_HASH_VALUE from SQL text Intern doFollow
Oracle Latch Contention Troubleshooting Intern doFollow
Oracle Session Snapper v3.10 Intern doFollow
How to CANCEL a query running in another session? Intern doFollow
New versions of LatchProf and LatchProfX for latch contention troubleshooting and tuning Intern doFollow
Oracle Troubleshooting: How to read Oracle ERRORSTACK output?! Intern doFollow
Using Process Memory Matrix script for calculating Oracle process memory usage on Solaris Intern doFollow
Oracle Wait Event reference Intern doFollow
Oracle Peformance Visualization… Intern doFollow
Bind Variable Peeking – execution plan inefficiency Intern doFollow
Recursive sessions… Intern doFollow
Sometimes things are easy (Part 1): How to fix wrapped execution plan text? Intern doFollow
Beyond Oracle Wait Interface – Part 2 Intern doFollow
NULL is not zero! Intern doFollow
Measuring what matters Intern doFollow
Finding the reasons for excessive logical IOs Intern doFollow
Explain Plan For command may show you the wrong execution plan – Part 1 Intern doFollow
Detect chained and migrated rows in Oracle – Part 1 Intern doFollow
What’s a good way to learn some Oracle internals every day? Intern doFollow
SystemTap is production supported in Redhat EL5.4 Intern doFollow
KGL simulator, shared pool simulator and buffer cache simulator – what are these? Intern doFollow
KGH: NO ACCESS allocations in V$SGASTAT – buffer cache within shared pool! Intern doFollow
Oracle 11gR2 has been released – and with column oriented storage option Intern doFollow
latch: cache buffers chains latch contention – a better way for finding the hot block Intern doFollow
Select COUNT(*) and COUNT(column) are different things! Intern doFollow
Alter system kill session and ORA-00031: session marked for kill Intern doFollow
An interview with me Intern doFollow
How to detect when a cursor was closed from SQL trace output? Intern doFollow
Identify the SQL statement causing those WAIT #X lines in a (top-truncated) sql tracefile Intern doFollow
(Secret) Preview of Oracle 12g CBO leaked from Oracle labs… Intern doFollow
Oracle memory troubleshooting, Part 3: Automatic top subheap dumping with heapdump Intern doFollow
Using Perfsheet and TPT scripts for solving real life performance problems Intern doFollow
ORA-04031 errors and monitoring shared pool subpool memory utilization with sgastatx.sql Intern doFollow
Oracle Performance Visualization videos from Sydney Intern doFollow
Scripts for showing execution plans via plain SQL and also in Oracle 9i Intern doFollow
“Free” DBA_HIST AWR views in 11g… Intern doFollow
I have been troubleshooting since I was a kid! :) Intern doFollow
Tracing Oracle SQL plan execution with DTrace Intern doFollow
Seminar feedback and pictures from Singapore Intern doFollow
Read OS environment variables using DBMS_SYSTEM.GET_ENV() Intern doFollow
I’m an Oracle ACE Director now :) Intern doFollow
Oracle 11g: Reading alert log via SQL Intern doFollow
Another LatchProfX use case Intern doFollow
The real history of Oracle database revealed! Intern doFollow
Oracle, Timesten and PL/SQL support Intern doFollow
The full power of Oracle’s diagnostic events, part 1: Syntax for KSD debug event handling Intern doFollow
60000 bind variables?! Maybe it’s time to use a temporary table instead… Intern doFollow
SQL_ID is just a fancy representation of hash value Intern doFollow
Performance Visualization, Capacity planning and Hotsos Symposium Intern doFollow
When was a table last changed? Intern doFollow
Multipart cursor subexecution and PRECOMPUTE_SUBQUERY hint Intern doFollow
Identifying shared memory segment users using lsof Intern doFollow
Reliable latch waits and a new blog Intern doFollow
Oracle memory troubleshooting, Part 1: Heapdump Analyzer Intern doFollow
Performance Visualization made easy – PerfSheet 2.0 beta Intern doFollow
A little oradebug enhancement in Oracle 11g Intern doFollow
Advanced Oracle Troubleshooting Guide, Part 9 – Process stack profiling from sqlplus using OStackProf Intern doFollow
Transportable tablespaces and ROWID uniqueness Intern doFollow
VLDB 2008 proceedings, Oracle optimizer plan stability, adaptive cursor sharing and SecureFiles Intern doFollow
Oracle hidden costs revealed, Part2 – Using DTrace to find why writes in SYSTEM tablespace are slower than in others Intern doFollow
Flexible sampling of any V$ or X$ view with sample.sql Intern doFollow
Case study on some rowcache internals, cached non-existent objects and a describe bug Intern doFollow
Why does even a small difference in SQL text cause a hard parse? Intern doFollow
Script: Display valid values for multioption parameters (including hidden parameters) Intern doFollow
The simplest query for checking what’s happening in a database Intern doFollow
Library cache latches gone in Oracle 11g Intern doFollow
Advanced Oracle Troubleshooting Guide, Part 8: Even more detailed latch troubleshooting using LatchProfX Intern doFollow
Closed database and WITH subquery Intern doFollow
Advanced Oracle Troubleshooting Guide, Part 7: Sampling latch holder statistics using LatchProf Intern doFollow
Another use case for WaitProf – diagnosing “events in waitclass Other” Intern doFollow
Killing an Oracle process from inside Oracle Intern doFollow
cursor_space_for_time To Be Deprecated Intern doFollow
Advanced Oracle Troubleshooting Guide, Part 6: Understanding Oracle execution plans with os_explain Intern doFollow
Debugger dangers Intern doFollow
Short note on KGX Mutexes Intern doFollow
Generating lots of rows using connect by – safely! Intern doFollow
Advanced Oracle Troubleshooting Guide, Part 5: Sampling V$ stuff with WaitProf. Really fast. Using SQL! Intern doFollow
Performance Tools Quick Reference Guide Intern doFollow
Advanced Oracle Troubleshooting Guide, Part 4: Diagnosing a long parsing issue Intern doFollow
Snapper shortcut Intern doFollow
Querying the current tracefile name, using SQL – with tracefile_identifier Intern doFollow
Oracle Troubleshooting with Snapper – detecting who’s causing excessive redo generation Intern doFollow
Performance and Scalalability Improvements in Oracle 10g and 11g Intern doFollow
Using autonomous transactions for sleeping Intern doFollow
SQL*Net break/reset to client Intern doFollow
SQL*Net message to client vs SQL*Net more data to client Intern doFollow
SQL*Net message to client wait isn’t really what it’s thought to be Intern doFollow
Oracle hidden costs revealed, part 1 – Does a batch job run faster when executed locally? Intern doFollow
Excellent article on Oracle 11g PL/SQL function result cache Intern doFollow
Can you write a working SQL statement without using any whitespace? Intern doFollow
Expensive calculator… Intern doFollow
Why does Oracle parameter count change during session lifetime? Intern doFollow
Systematic application troubleshooting in Unix Intern doFollow
Perl version of Snapper Intern doFollow
Sqlplus is my second home, part 5: Reading the name of currently executing script Intern doFollow
Oracle Security, Part 2: Your read only accounts aren’t that read only Intern doFollow
Sqlplus is my second home, part 4: Getting sqlplus parameter value into a variable Intern doFollow
A simple interview question Intern doFollow
How to resolve SQL object and column names all the way to base tables and columns in Oracle? Intern doFollow
Advanced Oracle Troubleshooting Guide, Part 3: More adventures in process stack Intern doFollow
Sqlplus is my second home, part 3: Colored selections in Windows XP command prompt Intern doFollow
Sqlplus is my second home, part 2: Running SQL scripts from remote locations using HTTP Intern doFollow
Operating systems are lazy allocating memory Intern doFollow
Advanced Oracle Troubleshooting Guide, Part 2: No magic is needed, systematic approach will do Intern doFollow
Oracle Session Snapper, part 2: Getting most out of Snapper Intern doFollow
Oracle 11g internals part 1: Automatic Memory Management Intern doFollow
Oracle Session Snapper – real-time session-level performance stats for DBAs Intern doFollow
Sqlplus is my second home, Part 1: HTMLizing your sqlplus output Intern doFollow
Session-level statspack Intern doFollow
A gotcha with parallel index builds, parallel degree and query plans Intern doFollow
My version of SQL string to table tokenizer Intern doFollow
Advanced Oracle Troubleshooting Guide: When the wait interface is not enough [part 1] Intern doFollow

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