External Article

Is JavaScript Single-Threaded?

Developing JavaScript for web pages can be perplexing. You will get errors that seem to make no sense, You will be given nuggets of advice about how and when you can use JavaScript to manipulate the DOM or make Ajax requests. It is far better to understand the reason for these rules; the single-threaded nature of JavaScript, and how it loads the page and manages the event loop. How can you achieve parallel processing and what is the best way? Igor makes it all clear and obvious.

External Article

Azure SQL Data Warehouse: Explaining the Architecture Through System Views

The architecture of Azure SQL Data Warehouse isn't easy to explain briefly, but if you have some useful queries that access the management and catalog views, and diagrams that show how they relate together, you can very quickly get a feel for what is going on under the hood. By using and extending these queries that use these views, you can check on a variety waits, blocking, status, table distribution and data movement in ASDW.

Blogs

SWAG Saves the Day

By

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

Upgrading SQL Server Containers on the Laptop

By

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

How to Find Expensive Queries in Amazon Redshift

By

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

Read the latest Blogs

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...

Visit the forum

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?

See possible answers