Constraints and declarative referential integrity
Database systems have powerful features built right in that can ensure the integrity of data. In this article, Joe Celko discusses keys and constraints.
Introducing the PASS Data Community SUMMIT
Join the world’s largest gathering of data professionals at this year’s free online PASS Data Community SUMMIT. Connect and network with 1000s of your peers and learn from some of the brightest minds in the data industry. This year’s must-attend online event is completely free, so sign up now to be notified when registration opens.
Agree or Lose Features
Forcing users to agree to a new EULA or removing features seems like a bad idea to Steve.
Creating Deep and Shallow Delta Clones in Azure Databricks
In this article we will look at how to create deep and shallow clones of source data when using Azure Databricks.
Save the date: PASS Data Community Summit 2021
Simple Talk editor Kathi Kellenberger announces this year's free global online conference will take place on November 8 - 12. Save the date, and stay tuned for the Call for Speakers coming soon.
You are cordially invited to attend 2021 Virtual Data.SQL.Saturday.LA event!
We are reaching out to all people that enjoyed SQL Saturday in LA 2017, 2018, 2019, and 2020 events to let you know that the 2021 event is fast approaching. Only 30+ days remain until the June 12 Virtual Data.SQL.Saturday.LA event. Please register soon to reserve your spot by using http://2021sqlsatla.eventbrite.com/ hyperlink, register using a form below or just use a QR code.
Differential Privacy
Steve looks at a technique that some think will allow more data to be used in research and training.
Dimensionality Reduction Techniques - PCA, Kernel-PCA and LDA Using Python
Summary In this article, we will be looking at some of the useful techniques on how to reduce dimensionality in our datasets. When we talk about dimensionality, we are referring to the number of columns in our dataset assuming that we are working on a tidy and a clean dataset. When we have many columns […]
Blogs
How to Connect to SQL Server When Nothing Else Works – DAC
By gbargsley
It's 2 AM. Your phone is going off. Users can't connect to the application,...
Get a Range of Sequence Values: #SQLNewBlogger
By Steve Jones
I discovered a procedure recently that I wasn’t aware of: sp_sequence_get_range. This post looks...
The Agent Era: When “How do I…?” Replaces “Where do I click?”
By Arun Sirpal
After a year away getting to grips with AI and its application across the...
Forums
Hiring: Financial SQL Systems Administrator
Fisher Phillips is looking for a Financial Systems Administrator to help support and improve our financial...
Job Opening for ERP Systems Administrator - Hybrid
Employee owned company, been around for over 50 years. Hybrid opportunity, looking folks in Pacific...
data compare between 2 tables with same structure for any changes after etl run
i have huge table with lot of data and is also wide. i took...
Question of the Day
Creating a JSON Document II
I want to create a JSON document that contains data from this table:
TeamID TeamNameCity YearEstablished 1 Cowboys Dallas 1960 2 Eagles Philadelphia 1933 3 Packers Green Bay 1919 4 Chiefs Kansas City 1960If I run this code, what document(s) is/are returned?
SELECT json_objectagg( n.city : n.TeamName) FROM dbo.NFLTeams;See possible answers