Posts Categorized: Pythian

Data Profile: Better Knowing Your Data

Have you ever needed to start a new data analysis project or create a report for the business users querying a database you never worked before? Or simply know the data distribution of a database to create better indexing strategies? Working as a consultant, I constantly face this challenge where I have to work with…

Oracle Database: Script to Purge aud$ Table Using dbms_audit_mgmt Package

With an increase in requirements on database security, database auditing is part of most production databases nowadays. The growth on Oracle database audit table”‘aud$” always add spice on a DBA’s life. Since this table growth directly impacts the database performance, this table got special place on every DBA’s heart. Traditionally we follow many methods to purge…

Azure Storage: Creating, Maintaining, and Deleting SQL Server Backups

This post covers how to create, monitor, maintain, and automatically delete SQL Server backups. What is Azure Storage and why should you use it? Microsoft Windows Azure is Microsoft’s cloud offering for offsite storage. It offers the ability to seamlessly enable massive storage, Virtual Servers, SQL Server database instances, and many other options without having…

12c: How to Restore/Recover a Small Table in a Large Database

As a DBA, you will receive requests from developers or users, indicating that they deleted some data in a small table in a large database a few hours prior. They will probably want you to recover the data as soon as possible, and it will likely be a critical production database. Flashback will not be enabled, and the recycle bin…

Building a MariaDB Galera Cluster with Docker

There’s been a lot of talk about Docker for running processes in isolated userspace (or the cloud for that matter) lately. Virtualization is a great way to compartmentalise applications  and processes however the overhead of virtualization isn’t always worth it – in fact, without directly attached storage IO degradation can seriously impact performance. The solution?…

SQL Server Replication Quick Tips

There is a time in every SQL Server DBA career where a mail came in with a “replication is not working, please check” message. This article is intended to provide with quick tips on how to handle common replication errors and performance problems in a one way transactional replication topology Oh boy, there is a…

Microsoft PowerBI: News from WPC

During the Worldwide Partner Conference (WPC) that happened last month, Microsoft made public some of the new functionalities that we can expect to see soon on Microsoft PowerBI. If you were on another planet in the last few months, and didn’t heard about PowerBI for Office 365, I’ve included a list of the set of tools…

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