What Happened to Hadoop?
For a time, it seemed that everyone wanted to build a Hadoop system. The world has changed, and that's not as popular an idea as it used to be. Today, Steve has a few thoughts.
2020-03-02
562 reads
Hadoop
2019-09-19
557 reads
2019-09-12
535 reads
SQL Server Integrates Hadoop and Spark out-of-the box: The Why?
Why has Microsoft added new capabilities in SQL Server to connect to other types of data sources? Read on to learn more.
2021-05-14 (first published: 2019-09-09)
10,656 reads
SQL-On-Hadoop: Hive - Part I
Running Interactive and Batch SQL Queries on Hadoop and other distributed clusters using SQL.
2019-07-19 (first published: 2017-07-26)
12,820 reads
Getting ready for Hadoop
Before adopting Hadoop into your organisation there are a number of factors to consider. This article highlights some of the key points.
2015-11-23
6,418 reads
2015-10-20
4,050 reads
Hadoop For SQL Folks: Architecture, MapReduce and Powering IoT
As the de-facto big data processing and analytics engine, the Hadoop ecosystem is also leading the way in powering Internet of Things (IOT)
2016-12-02 (first published: 2015-08-06)
12,619 reads
A Beginners Look at Hadoop
Hadoop has been making a lot of noise in the Big Data world. Despite my lack of Linux experience I decided to take the plunge and this is what I found.
2015-01-01 (first published: 2013-06-05)
24,258 reads
Blogs
The flight recorder: Replaying what an AI agent did on my SQL Server
By Arun Sirpal
“What exactly did it do on my server?” is the first question a DBA...
Announcements from the Microsoft Fabric Community Conference — Barcelona 2026
By James Serra
Microsoft shared a broad set of Fabric, Power BI, and SQL updates at FabCon...
Au Revoir for now
By Steve Jones
No, I’m not quitting or retiring. Just going on vacation, but I leave tonight...
Forums
Let's Talk Certifications
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The Hidden Security Risks of Role Combination in SSAS Tabular
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The Empty Aggregate
Comments posted to this topic are about the item The Empty Aggregate
Question of the Day
The Empty Aggregate
I have this table in a SQL Server 2025 database:
CREATE TABLE [dbo].[CustomerOrder] ( [OrderID] [int] NULL, [CustomerID] [int] NULL, [total] [money] NULL ) ON [PRIMARY] GOWhat is returned from this code? (answers are for the sum and then the count)
SELECT SUM(total) AS sum,
COUNT(total) AS count
FROM dbo.CustomerOrder;
See possible answers