Blog | Pythian | Oracle (24)

Oracle

Stabilize Oracle 10G's Bind Peeking Behaviour

I wrote this post because I feel there is a great need for it. The number of people struggling with unstable query ...

Oracle

What's New in 11i TXK AutoConfig and Templates Rollup Patch S

Context You might have already seen the blog update on Steven Chan's site. TXK AutoConfig and Templates Rollup Patch S ...

Oracle

Oracle 11g's SQL Performance Analyzer

A lot of things have already been said about the Real Application Testing Option -- from the price to the most ...

Oracle

Can "between" and ">= and <=" Differ in Oracle?

Introduction To between or not to between? Sometimes I wonder how "simple" things can end up being not where you would ...

Oracle

Undocumented parameter _fix_control: How to break your database

Introduction Beware this parameter can prevent your database from starting. Indeed it can prevent your instance from ...

Oracle

Pythian goodies: the answer to free memory, swap, oracle, and everything

I gave this talk at the UKOUG, and I have received a few requests to post the slides online. Instead of just posting ...

Oracle

3 Tips on Using dg4odbc on 64-bit Linux

I recently imported the contents of an Oracle 8i database into an 11g database. Since the original application needed ...

Oracle

MERGE Without an INSERT -- It's Not Always Like an UPDATE

Before you proceed with reading this post, I strongly encourage you to read Tom Kyte's trilogy about write consistency, ...

Oracle

How to Make an In-Database listener.log File

Introduction Ever wished the listener.log file was a table in the database? Wish no more! About three years ago, I sent ...

Oracle

Bind Peeking, Ad Hoc Queries, Stable Performance

I got to troubleshoot an amazing situation a few weeks ago. I think, we can all agree that assuming we are on a ...

Oracle

How to Rename a Copied or Cloned ASM Disk Group

ASM is definitely one of the coolest technologies inside the Oracle Database. On the other hand, the ability of the ...

Oracle

Oracle Standby redo Logs

So you have created your standby database using the RMAN DUPLICATE command, you have set the minimum log switch ...

Oracle

Oracle file extent map, the old-fashioned way

Background Have you ever wanted to know where exactly in a datafile segments are placed? Have you ever wondered just ...

Oracle

SELECT COUNT(*) FROM Tab -> No Rows Selected

In the following SQL*Plus output… SQL> select sum(tran_sum), count(*) 2 from trans; no rows selected …something is ...

Oracle

Oracle RAC, v$, and gv$

According to wikipedia, “The rack is a medieval torture . . . which induces excruciating pain as the victim’s joints ...

Oracle

Oracle ASM 11g: Does the ASMCMD cp Command Really Work?

Update 21-Sep-2011: It’s definitely was a bug in an early 11g release. As cp command does work in the latest release. ...

Oracle

How To Set Up Oracle ASM on Ubuntu Gutsy Gibbon

I’ve recently moved to Ubuntu Linux, and this post describes my attempt to play around with Oracle ASM on Ubuntu. For ...

Oracle

Oracle Application Server: How to Bounce AS from One Location

In this post and some upcoming posts, I’m going to write more about Oracle application servers, a subject we have ...

Oracle

Using DBMS_SYS_SQL to Execute Statements as Another User

I do realize that for most of you, there may be nothing new about the dbms_sys_sql package knowledge of it has been ...

Oracle

Oracle Outside In Technology 8.2.0

Today I found some interesting software pieces available for download from Oracle TechNet. “Oracle Outside In ...

Oracle

REMOTE_LOGIN_PASSWORDFILE = EXCLUSIVE in Oracle 10g

I’ve never really liked the idea of REMOTE_LOGIN_PASSWORDFILE=SHARED, probably just because I haven’t seen much use for ...

Oracle

Oracle: Is OUTER JOIN Better Than NOT EXISTS?

I’ve been told that using NOT EXISTS in (Oracle) SQL is a bad idea, and that a way to overcome this problem is to ...

Oracle

How To Recreate the Oracle Clusterware Voting Disk

Recreating the Voting disk may not be as easy as written in Metalink. If you work with RAC, you know about Metalink ...

Oracle

Oracle Grid Control: The Importance of Deleting the emkey

Disclaimer: In most countries, looking at user passwords is illegal. Never try what is written below on a system that ...

Oracle

Multi-Column Correlation and Extended Stats in Oracle 11g

Introduction We all have encountered this situation many times before: the cost-based optimizer assumes no correlation ...

Oracle

Identifying SQL Execution Bottlenecks Scientifically

Background A few days ago, a developer and I had an interesting conversation. The developer was trying to tune an ...

Oracle

How to Recover Deleted Oracle Datafiles with No Downtime

So you have accidentally removed a datafile from your production database? First thing, DON’T PANIC! There’s an easy ...

Oracle

Recent Spike Report from v$active_session_history (ASH)

Background For the past few months I’ve been using a query that I refer to as “ash report – recent spike”. That’s the ...

Oracle

Oracle Standby Recovery Rate Monitoring

So you have created your standby database using the RMAN DUPLICATE command, you have set the ARCHIVE_LAG_TARGET to ...

Oracle

Total Recall by DUDE: Extracting Oracle Data After RAID Corruption

Last Friday, a customer paged me to say that they could not open an Oracle 8.0.5 database after the RAID array crashed. ...

AI Related Latest Blogs

Oracle

Oracle AI Data Platform (AIDP): No-Nonsense Platform Overview

Oracle’s AI Data Platform (AIDP) is essentially an attempt to fix the biggest annoyance ...

Google Workspace

AI in the Workplace: Employee Productivity & Sentiment Survey

2025 employee survey on the use of AI In November 2025, Pythian, a professional services ...

Google Workspace

Is Agentspace good for non-Google shops?

So you’re not a Google shop. Does that mean you can’t take advantage of the AI ...

View All →

Analytics related blog posts

Analytics

Using Multi-Agent Reasoning for NLP-to-SQL

As data-driven decision-making becomes essential, access to that data shouldn’t require deep technical ...

Analytics

Becky's BI Apps Corner: OBIA 11.1.1.10.2

Upgrade jitters? If you’re running older versions of OBIA, the new 11.1.1.10.2 release brings game-changing features like automatic error handling and ...

Analytics

Oracle Data Integrator (aka Sunopsis) Now On OTN

Oracle Data Integrator (formerly Sunopsis) has officially landed on the Oracle Technology Network, bringing

View All →

Build a scalable data foundation to accelerate with AI.

Get started today →

Stabilize Oracle 10G's Bind Peeking Behaviour

What's New in 11i TXK AutoConfig and Templates Rollup Patch S

Oracle 11g's SQL Performance Analyzer

Can "between" and ">= and <=" Differ in Oracle?

Undocumented parameter _fix_control: How to break your database

Pythian goodies: the answer to free memory, swap, oracle, and everything

3 Tips on Using dg4odbc on 64-bit Linux

MERGE Without an INSERT -- It's Not Always Like an UPDATE

How to Make an In-Database listener.log File

Bind Peeking, Ad Hoc Queries, Stable Performance

How to Rename a Copied or Cloned ASM Disk Group

Oracle Standby redo Logs

Oracle file extent map, the old-fashioned way

SELECT COUNT(*) FROM Tab -> No Rows Selected

Oracle RAC, v$, and gv$

Oracle ASM 11g: Does the ASMCMD cp Command Really Work?

How To Set Up Oracle ASM on Ubuntu Gutsy Gibbon

Oracle Application Server: How to Bounce AS from One Location

Using DBMS_SYS_SQL to Execute Statements as Another User

Oracle Outside In Technology 8.2.0

REMOTE_LOGIN_PASSWORDFILE = EXCLUSIVE in Oracle 10g

Oracle: Is OUTER JOIN Better Than NOT EXISTS?

How To Recreate the Oracle Clusterware Voting Disk

Oracle Grid Control: The Importance of Deleting the emkey

Multi-Column Correlation and Extended Stats in Oracle 11g

Identifying SQL Execution Bottlenecks Scientifically

How to Recover Deleted Oracle Datafiles with No Downtime

Recent Spike Report from v$active_session_history (ASH)

Oracle Standby Recovery Rate Monitoring

Total Recall by DUDE: Extracting Oracle Data After RAID Corruption

Recent news

Pythian Recognized as a Top AI & Data Consulting Firm for 2026

Pythian Recognized as Silver Winner in UKOUG Data Integration Partner of the Year Awards 2026

Pythian Leaders Recognized on CRN’s 2026 Women of the Channel List

Pythian and Three of Its Leaders Named Finalists for the 2025 CRN Women of the Year Awards

Pythian India Earns “Great Place to Work” Certification for Fourth Consecutive Year

Pythian’s Vanessa Simmons and Donna Williston Again Named to CRN’s 2025 Women of the Channel List

Pythian Positioned as Oracle Database @ Google Cloud Leader with Acquisition of Rittman Mead

Pythian Doubles Down on AI-Readiness, Expanding AI Practice with Valuable Services and Expertise

Pythian Launches Agentspace QuickStart

Pythian Wins 2025 Google Cloud Databases Partner of the Year for North America

Pythian and GigaOm Announce AI Partnership

Pythian Named Top Employer in Canada's National Capital Region for 2025

Pythian Welcomes Shawn Gandhi as Senior Vice President, Customer Engineering, and Country Managing Director for Canada

Pythian Announces New Oracle Database@Google Cloud Migration Services

Pythian India Earns “Great Place to Work” Certification for Third Consecutive Year

Pythian Recognized on CRN’s 2024 Solution Provider 500 List and DBTA’s 100 Companies That Matter Most in Data for 2024

Pythian Welcomes Brooks Borcherding as Chief Executive Officer

Pythian’s Vanessa Simmons and Donna Williston Honored by CRN on 2024 Women of the Channel Lists

Pythian Recognized as a Top Employer in Canada’s National Capital Region in 2024

Pythian Announces Generative AI Strategy and Offerings to Accelerate Enterprise Innovation

CRN Names Pythian’s Vanessa Simmons a 2023 Women of the Channel Power 80 Solution Provider

Award-Winning Marketing Veteran Christina O’Reilly Joins Pythian Services as Senior Vice President, Marketing

Pythian Makes Database Trends and Applications’ List of Trendsetting Solution Providers for 2023

Pythian Celebrates 25 Years of Enterprise Data, Analytics, and Cloud Success

Pythian India Achieves “Great Place to Work” Certification After Building High-Trust, High-Performance Culture

Pythian Named One of ‘The Companies That Matter Most in Data’ by Database Trends and Applications Magazine

Vanessa Simmons from Pythian Named on CRN’s 2022 Women of the Channel Power 70 Solution Providers List

Pythian Named Partner in Launch of Google Cloud Cortex Framework

Pythian’s SAP Services Practice Grows by 300 Percent in 2021

Pythian Renews Google Cloud Infrastructure Specialization in the Google Cloud Partner Advantage Program

Pythian Services Recognized on CRN’s 2022 MSP 500 List

Pythian Renews Machine Learning Partner Specialization in the Google Cloud Partner Advantage Program

Pythian Sets Company Record with Over 100 New Customers in 2021

Pythian’s CTO Paul Lewis Featured Commentary Published by InformationWeek

How to Modernize Backup Without Breaking the Bank

Pythian Launches FinOps Managed Services

Pythian Acquires SAP MSP Partner ManageServe

Pythian Taps Seasoned Cloud and Data Expert Paul Lewis as CTO

Pythian Achieves Managed Services Provider Status In the Google Cloud Partner Advantage Program

Keith Angell: Accelerating Enterprise Growth With Data And Analytics Through Remarkable Leadership

Pythian Achieves the Data Management Partner Specialization in the Google Cloud Partner Advantage Program

Pythian Adds Snowflake Data Cloud Services Suite

New CEO Keith Angell: Pythian Services A ‘Golden Nugget’

Pythian Appoints Keith Angell As CEO

Pythian Services Acquires Google Cloud Premier Partner Agosto

Pythian Announces Support For AWS Outposts As A Launch Partner

Pythian Wins 2018 Google Cloud Data Analytics Partner of the Year Award

Pythian achieves Machine Learning Partner Specialization in the Google Cloud Partner Specialization Program

Pythian achieves Cloud Migration Partner Specialization in the Google Cloud Partner Specialization Program