James Serra

James works at Microsoft as a big data and data warehousing solution architect where he has been for most of the last nine years. He is a thought leader in the use and application of Big Data and advanced analytics, including data architectures such as the modern data warehouse, data lakehouse, data fabric, and data mesh. Previously he was an independent consultant working as a Data Warehouse/Business Intelligence architect and developer. He is a prior SQL Server MVP with over 35 years of IT experience. He is a popular blogger (JamesSerra.com) and speaker, having presented at dozens of major events including SQLBits, PASS Summit, Data Summit and the Enterprise Data World conference. He is the author of the book “Deciphering Data Architectures: Choosing Between a Modern Data Warehouse, Data Fabric, Data Lakehouse, and Data Mesh”.

Blogs

SWAG Saves the Day

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PASS Summit East is in one week. I was on the road last week...

Upgrading SQL Server Containers on the Laptop

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I don’t have SQL Server installed on my laptop. In an effort to keep...

How to Find Expensive Queries in Amazon Redshift

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Slow-running queries can degrade your Redshift cluster’s performance and lead to increased costs. Identifying...

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Forums

Having Issue deploying a report to an on prem server from PowerBI desktop

By daniel.manke

Using PowerBI Version1.25.9508.3237(January 2026). Installed Microsoft Power BI Desktop (Optimized for Power BI Report...

SQL 2019 instance with AG, across 2 Windows 2016 OS servers - OSin-place upgrade

By millardus

Hi all Can I get some perspective from the community please on performing in-place...

How Long is a Long I/O?

By Steve Jones - SSC Editor

Comments posted to this topic are about the item How Long is a Long...

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Question of the Day

How Long is a Long I/O?

In SQL Server 2025, a long I/O is recorded in the error log with message 833. How long much an I/O request be outstanding before this message is written to the log?

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