Survey: Help Improve SQL Doc
Do you use SQL Doc? We're building the new version, and we'd like your help. Complete the survey for a chance to win a $50 Amazon voucher.
Introduction to SQL Server Check Constraints
Check Constraints play a very important role in SQL Server as it allows data validation rules to be imposed at the SQL Server instance level itself instead of writing rules for each application.
SQL Saturday #233 Oklahoma City
SQL Saturday comes to Oklahoma City on August 24th for a free day of SQL Server training and networking. This event also features a paid-for pre conference session on Friday with Bill Pearson on Practical Self-Service BI with PowerPivot for Excel.
SQLServerCentral.com Users Survey 2013
We want to make sure we're covering the things that are relevant to you, so we're asking for some feedback on what you use on SSC, where we need to improve, and what you'd like to see.
It should only take a few minutes, and three randomly-selected people will win a $100 Amazon gift card for their efforts.
The Standard Limitation
SQL Server Standard Edition only supports 64GB of RAM and it's our fault. Or is it, and is this a reasonable number? Steve Jones has a few thoughts today.
Biml Workshop presented by Varigence and Linchpin People
Business Intelligence Markup Language (Biml) automates your BI patterns and eliminates the manual repetition that consumes most of your time. On October 15th come see why BI professionals around the world think Biml is the future of data integration and BI.
Concatenation of Different SQL Server Data Types
TSQL provides 2 ways to concatenate data, the + sign and the new CONCAT() function. This tip will cover the differences in the two, so you can achieve the expected behavior in your code.
Changing SQLServerCentral - Newsletter Layout
Our series discussing the current and potential changes to SQLServerCentral.
Data Mining Introduction Part 6: Time series algorithm
This article is part of the Data Mining introduction series. This article is about time series.
Blogs
AI: Blog a Day – Day 5: Notebooks, Hugging face models and Fine Tuning
By Vinay Thakur
Continuing from Day 4 where we learned Encoder, Decoder, and Attention Mechanism, today we...
AI: Blog a Day – Day 4: Transformers – Encoder, Decoder, and Attention
By Vinay Thakur
Continuing from Day 3 where we covered LLM models open/closed and their parameters, Today...
Flyway Tips: Multiple Projects
By Steve Jones
One of the nice things about Flyway Desktop is that it helps you manage...
Forums
Can an Azure App Service Managed Identity be used for SQL Login?
I'm fairly certain I know the answer to this from digging into it yesterday,...
Azure Synapse database refresh
Hi Team, I am trying to refresh the Azure Synapse Dedicated pool from production...
how to write this query?
hi everyone I am not sure how to write the query that will produce...
Question of the Day
Fun with JSON I
I have some data in a table:
CREATE TABLE #test_data
(
id INT PRIMARY KEY,
name VARCHAR(100),
birth_date DATE
);
-- Step 2: Insert rows
INSERT INTO #test_data
VALUES
(1, 'Olivia', '2025-01-05'),
(2, 'Emma', '2025-03-02'),
(3, 'Liam', '2025-11-15'),
(4, 'Noah', '2025-12-22');
If I run this query, how many rows are returned?
SELECT *
FROM OPENJSON(
(
SELECT t.* FROM #test_data AS t FOR JSON PATH
)
) t; See possible answers