2023-07-14
152 reads
2023-07-14
152 reads
As a data professional, I have some fun with data in my life. I like numbers, and I like tracking things. I've written posts about my year in numbers, and recently noted the states I've visited. Like many of you, I've sometimes used this data to practice a skill, maybe learn to ETL or query […]
2023-07-14
3,332 reads
2023-07-12
402 reads
2023-07-12
150 reads
Today Steve talks about bare metal servers and virtual machines. He wonders if any of you still run bare metal.
2023-07-10
352 reads
2023-07-10
389 reads
We’re a little delayed this month. Both the host and I forgot about this. So far in June, I’ve been in Fort Lauderdale, Las Vegas, Denver, and Cambridge for...
2023-07-10 (first published: 2023-06-20)
229 reads
2023-07-07 (first published: 2018-09-13)
388 reads
This is documented, somewhat, but I wanted to put this down for myself, as the I don’t love the docs and they are hard to sort through. Flyway is...
2023-07-07 (first published: 2023-06-26)
136 reads
Will your database fit into RAM? Steve Jones asks you to think about the possibility.
2023-07-05 (first published: 2018-09-21)
285 reads
By Brian Kelley
I will be leading an in-person Certified Information Systems Auditor (CISA) exam prep class...
EightKB is back again for 2026! The biggest online SQL Server internals conference is...
By HeyMo0sh
Working in DevOps long enough teaches you two universal truths: That’s exactly why I...
Hi all, I just started using VS Code to work with DB projects. I...
Comments posted to this topic are about the item Fun with JSON II
Comments posted to this topic are about the item Changing Data Types
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 t1.[key] AS row,
t2.*
FROM OPENJSON(
(
SELECT t.* FROM #test_data AS t FOR JSON PATH
)
) t1
CROSS APPLY OPENJSON(t1.value) t2; See possible answers