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Tanel Poder Blog

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

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Föråldrade HTML-taggar är HTML-taggar som inte längre används. Vi rekommenderar att du tar bort eller ersätter dessa eftersom dom nu är föråldrade.

Hastighets Tips

Utmärkt, din webbplats använder inga nästlade tabeller.
Synd, din webbplats använder sig utav inline stilar.
Bra, din webbplats har få CSS-filer.
Perfekt, din webbplats har få Javascript filer
Perfekt, din webbplats utnyttjar gzip.

Mobil

Mobiloptimering

Apple Ikon
Meta Viewport Tagg
Flash innehåll

Optimering

XML Sitemap

Bra, din webbplats har en XML sitemap.

https://tanelpoder.com/sitemap.xml

Robots.txt

https://tanelpoder.com/robots.txt

Bra, din webbplats har en robots.txt fil.

Analytics

Saknas

Vi hittade inte någon analysverktyg på din webbplats.

Webbanalys program kan mäta besökare på din webbplats. Du bör ha minst ett analysverktyg installerat, men det kan också vara en bra ide att installera två för att dubbelkolla uppgifterna.

PageSpeed Insights

Enhet
Kategorier

Free SEO Testing Tool

Free SEO Testing Tool är en fri SEO verktyg som hjälper dig att analysera din webbplats