Microsoft SQL Server

Preventing runaway queries using Resource Governor

Section A (Theory) One of the typical reasons for performance issues is runaway queries executed by end users on a busy production database. This problem is fairly common in OLAP or shared systems (OLTP/OLAP) where business users begin executing complex (and often poorly written) queries, leaving their office for hours, and expecting their data to…

Log Buffer #346, A Carnival of the Vanities for DBAs

Economist says that Physics suggest that storms will get worse as the planet warms. Typhoon Haiyan in Philippines, bush-fires in Australia, floods in China, and extreme unpredictable weather across the planet is a sober reminder. Good news is that technology and awareness is rising, and so is the data. Database technologies are playing their part…

Log Buffer #345, A Carnival of the Vanities for DBAs

There are a number of technologies, apps, and social media creations out there seeking to displace blogs as the mode of sharing between surfers, but blogging has proved hardy. It has proven its mettle and it’s here to stay. This Log Buffer Edition appreciates this strength of the blogs.

SQL Server Risk Assessment – The PMP Way

Recently I had a chance to speak with my friend and colleague, Ashish Sharma. We were discussing Project Management topics (he recently passed PMP and ACP). Our discussion ended on a very interesting topic – RISK Assessment. Definition: According to PMBOK, projects can have unforeseen events or activities that can impact the project’s progress, result,…

SQL Server Instance in Script Upgrade mode

Introduction: Almost all of us in our DBA life would have patch/upgrades SQL Server instance and would have faced many issues while upgrading the SQL Server build. Today I will discuss in little detail about the background of the Script Upgrade Mode and the fix. What is Script Upgrade mode: When we apply a patch…

Magic Knobs in Replication Agents

Have you ever wondered about tuning your replication configuration to achieve better performance or you got into a situation of huge latency and were looking for an easier way to tune it. In this blog post, I will explain the very useful switches which are not always that obvious. Snapshot Agent BCPBatchSize – is the…

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