2018-03-12
296 reads
2018-03-12
296 reads
A data model is far more powerful than simply a set of build instructions for DBAs. It can be used to shape business thought and actions for the benefit of all.
2017-02-14
2,023 reads
People were doing ETL long before ETL packages were invented. Some of those facilities still have worth today
2016-08-15
6,484 reads
Producing a crib sheet for data quality drives a shared understanding of the data used to power the business.
2016-07-28
1,330 reads
The Books Online description of the RAND() function is only true from certain perspectives.
2016-05-09
2,726 reads
When a business does not have an agreed set of definitions for their every day terms slow burning chaos ensues.
2016-05-04
105 reads
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
6,376 reads
There is a world of difference between technology originating in or designed for the cloud and technology that predates but can run in the cloud.
2015-10-12
125 reads
Constructive feedback on SOUNDEX - Experiments with SQLCLR lead to further experimentation with phonetic algorithms
2015-07-06
3,838 reads
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)
24,178 reads
By HeyMo0sh
Microsoft Fabric (not to be confused with the more general term “fabric” in DevOps)...
By James Serra
I’m honored to be hosting T-SQL Tuesday — edition #192. For those who may...
By Vinay Thakur
Continuing from Day 2 , we learned introduction on Generative AI and Agentic AI,...
hi everyone I am not sure how to write the query that will produce...
Comments posted to this topic are about the item Rollback vs. Roll Forward
Comments posted to this topic are about the item Foreign Keys - Foes or...
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