Blog | Pythian | Oracle (19)

Oracle

Silent Installation of RAC 12c database

Nowadays, everyone is installing Oracle Database 12c in different variants, posting screenshots, and discussing the ...

Oracle

UDM is watching you, UDMs

With time monitoring of several thousand targets of different versions and on different operating systems accumulates ...

Oracle

Oracle Database Load Testing Tools – Overview

At Pythian's internal forum, someone just asked the following question: "The team here is evaluating DB load testing ...

Oracle

Mining the AWR to Identify Performance Trends

Sometimes it's useful to check how performance of a SQL statement changes over time. The diagnostic pack features ...

Oracle

Oracle free block corruption - test case

My very first blog post at Pythian - Trick or Treat? So there I was, faced with more that 4000 block corruptions as ...

Oracle

Proactive FRA Monitoring Using OEM Metrics

Oracle’s built-in thresholds for the Flash Recovery Area (FRA) are a bit like a strict landlord: they’re set at 85% and ...

Oracle

Simple and Quick Way to Get SQL_ID of Query in Oracle

Notice If you need to get SQL_ID of a query from a busy system, which has similar queries scattered all around, it ...

Oracle

Options for Tracing Oracle dbms_stats

A Baffling Case of ORA-00942 Recently we had a good reason to find out what was going on behind the scenes with ...

Oracle

Step-by-Step Installation of an EBS 12.2 Vision Instance

It's here! It's here! It's finally here! (what, you don't get excited when you get new toys?) Now that version 12.2 of ...

Oracle

Oracle Database 12c: Network Recovery in RMAN

Over the past 8 months, I have had the pleasure of working on a soon-to-be-released update for our popular Beginner's ...

Oracle

Do You Know If Your Database Is Slow?

The time to respond There was a question at Pythian a while ago on how to monitor Oracle database instance performance ...

Oracle

How to Update JDK on Oracle Enterprise Linux from Version 1.6 to 1.7

Intro JDK is the environment to develop Java programs, and updating Java on Linux boxes is a requirement which often ...

Oracle

Meaning of "Disk Reads" Values in DBA_HIST_SQLSTAT

This post builds on my previous work regarding Mining the AWR. While analyzing performance, I realized how easily the ...

Oracle

Database 12c: What's New with Data Pump? Lots.

This article will discuss some of the new stuff on board with Oracle Database 12c and one of our favorite tools: data ...

Oracle

Exadata Join Offloading in Action

One of the biggest selling features of Oracle's flagship engineered system - Exadata - is the storage offloading ...

Oracle

Duplication: divide et impera

Every Monday morning starts with the same routine: refreshing QA databases from PeopleSoft production. Even though the ...

Oracle

How to Fix a Target with a Pending Status in OEM 12cR2

The other day we had a situation with an OEM 12cR2. We performed maintenance in a 2-node cluster and both instances ...

MySQL

Hard Drive: Inner or Outer?

To be precise, I wonder if OUTERmost tracks of a spinning HDD are faster than INNERmost tracks. Should we put physical ...

Oracle

Configuring OID 11.1.1.6 Connector in OIM 11.1.2

Configuring OID 11.1.1.6 connector in OIM 11.1.2 for direct provisioning: There is a big change in the way direct ...

Oracle

Be Warned: cmclean.sql Is Dangerous!

Description I’m sure one of the most popular scripts for Apps DBAs on My Oracle Support is cmclean.sql from MOS Article ...

Oracle

Duplicate Database from Active Database — Just Works!

My friend Øyvind Isene suggested that I store a DUPLICATE RMAN script that works in a safe place in this tweet. @yvelik ...

Oracle

Managing Oracle on Windows: Where’s my Oratab?

Introduction If you manage Oracle on Windows, you probably have wondered why it is so difficult to work out which ...

Oracle

Data Guard Cascaded Standby Support in DB12c

Oracle Database 12c brought more than 500 new features, and many of them are related to Data Guard enhancements. Along ...

Oracle

Database Validation in Data Guard 12c

Introduction to validate database in db12c DGMGRL was never difficult to use; however, it was not providing enough ...

Oracle

Connection Resets When Importing from Oracle with Sqoop

I’ve been using Sqoop to load data into HDFS from Oracle. I’m using version 1.4.3 of Sqoop, running on a Linux machine ...

Oracle

SQL for Pattern Matching in Oracle 12c

Oracle 12c is out! And with it, a myriad of new features that we’ll be learning and playing with in the months and ...

Oracle

Getting ready to install EBS 12.2 Vision: Quickstart notes

Getting ready for the next big thing In the wake of last week’s announcement of the general availability of Oracle ...

Oracle

Improve Gather Stats in Oracle E-Business Suite

One important aspect of a healthy Oracle database is database statistics. It’s the main data on which CBO feeds to ...

Oracle

How to Install Oracle 12c RAC: A Step-by-Step Guide

Announcement Okay, back to school folks, back to school :). As with any new product, our long learning journey starts ...

Oracle

Linux HugePages for Oracle on Amazon EC2

Situation One of the optimizations available to us when running Oracle on Linux is huge page support. This feature of ...

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Oracle

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AI in the Workplace: Employee Productivity & Sentiment Survey

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

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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

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Silent Installation of RAC 12c database

UDM is watching you, UDMs

Oracle Database Load Testing Tools – Overview

Mining the AWR to Identify Performance Trends

Oracle free block corruption - test case

Proactive FRA Monitoring Using OEM Metrics

Simple and Quick Way to Get SQL_ID of Query in Oracle

Options for Tracing Oracle dbms_stats

Step-by-Step Installation of an EBS 12.2 Vision Instance

Oracle Database 12c: Network Recovery in RMAN

Do You Know If Your Database Is Slow?

How to Update JDK on Oracle Enterprise Linux from Version 1.6 to 1.7

Meaning of "Disk Reads" Values in DBA_HIST_SQLSTAT

Database 12c: What's New with Data Pump? Lots.

Exadata Join Offloading in Action

Duplication: divide et impera

How to Fix a Target with a Pending Status in OEM 12cR2

Hard Drive: Inner or Outer?

Configuring OID 11.1.1.6 Connector in OIM 11.1.2

Be Warned: cmclean.sql Is Dangerous!

Duplicate Database from Active Database — Just Works!

Managing Oracle on Windows: Where’s my Oratab?

Data Guard Cascaded Standby Support in DB12c

Database Validation in Data Guard 12c

Connection Resets When Importing from Oracle with Sqoop

SQL for Pattern Matching in Oracle 12c

Getting ready to install EBS 12.2 Vision: Quickstart notes

Improve Gather Stats in Oracle E-Business Suite

How to Install Oracle 12c RAC: A Step-by-Step Guide

Linux HugePages for Oracle on Amazon EC2

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