Kathi Kellenberger


SQLServerCentral Editorial

Goodbye to PASS

On December 17, the PASS organization announced the news that it would cease operations on January 15, 2021. Since the announcement, folks have been scrambling to figure out how to keep their user groups and events going or downloading recordings. By the way, if you need assistance with your user group, please reach out to […]

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2020-12-26

195 reads

SQLServerCentral Editorial

Bad career advice from a 14 year old

I was having a conversation with my 14-year-old grandson Thomas the other day. He was telling me that is signed up to take a programming class in school next term and sees a future career in technology. He loves playing video games, so maybe developing them would be a good choice. He also was thinking […]

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2020-11-28

179 reads

SQLServerCentral Editorial

Automatic Install of Azure Data Studio

Microsoft recently announced that you’ll get Azure Data Studio (ADS) when you install SQL Server Management Studio (SSMS) starting with version 18.7.1. Azure Data Studio has been around for a couple of years, and it has some great features that most of us never imagined for SSMS, like the ability to connect to PostgreSQL databases […]

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2020-11-07

1,030 reads

SQLServerCentral Editorial

What is Possible?

There’s the old saying “Whether you think you can or you think you can’t -- you’re right” from Henry Ford. I’ve thought about this more recently while reading the book The Rise of Superman Decoding the Science of Ultimate Human Performance which talks about how athletes have performed so called impossible feats over the past few […]

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2020-10-31

90 reads

SQLServerCentral Editorial

Azure Resource Mover

Microsoft recently held the 2020 Ignite conference. Just like in previous years, there were many announcements introducing new services and expanded capabilities of existing ones, especially in Azure. Ahead of Ignite, I was asked to take a test drive of one of the new features, Azure Resource Mover (in preview). It’s easy to move a […]

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2020-10-03

179 reads

SQLServerCentral Editorial

Mentoring

Over the years when I changed careers and then advanced in IT, many people helped me learn or provided opportunities. Some of these people gave specific in-person help, like my brothers who taught me programming logic and database normalization before I ever thought about working in technology. Others assisted from a distance when I read […]

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2020-09-05

167 reads

SQLServerCentral Editorial

How to be an MVP

For those of you who haven’t heard of it, MVP stands for Most Valuable Professional. Microsoft gives this award to people in the community – not employees – who help teach the community at large about their products. The award can be given in one or more of the categories such as Data Platform, AI, […]

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2020-08-08

166 reads

SQLServerCentral Editorial

Controlling Intelligent Query Processing Features

I always look forward to new T-SQL features and optimizer enhancements with every new version of SQL Server. Starting in 2017, Microsoft came up with a set of features called Intelligent Query Processing (IQP). These features work to improve performance without changing any code. If you’d like to learn more about these features, take a […]

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2020-07-11

739 reads

SQLServerCentral Editorial

What is Azure SQL Database Serverless?

I remember when the first SQL databases were available on Azure. The size limits and missing features made them impractical for most uses at the time. Fast forward 10 years and you can you create a terabyte database and take advantage of configurations like Hyperscale, Elastic Pool, and Managed Instances. You get automatic high-availability and […]

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2020-06-13

539 reads

SQLServerCentral Editorial

Bad Managers

I’m constantly hearing stories about terrible managers, and, of course, I’ve experienced quite a few myself. In fact, I can’t come up with many nice things to say about most managers when I look back over my career. (Luckily, my manager at Redgate is wonderful!) Early in my tech career, I was working at a […]

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2020-05-16

184 reads

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Question of the Day

STRING_AGG's behavior

Executing the following script (Sql Server 2022), you get the table t0 with 10 rows:
CREATE TABLE t0
( id     INT PRIMARY KEY
, field1 VARCHAR(1000)
, field2 VARCHAR(MAX));
INSERT INTO t0
SELECT
  gs.value
, REPLICATE ('X', 1000)
, REPLICATE ('Y', 1000)
FROM generate_series(1, 10, 1) gs;
GO
What happens if you execute the following statements?
  1. select STRING_AGG(field1, ';') within group (order by id)  from t0;
  2. select STRING_AGG(field2, ';') within group (order by id)  from t0;

See possible answers