CPU Overcommitment and Its Impact on SQL Server Performance on VMware
In the early days of virtualization, the core focus of virtualization was primarily consolidation. You could achieve quite high consolidation...
2012-12-17
1,823 reads
In the early days of virtualization, the core focus of virtualization was primarily consolidation. You could achieve quite high consolidation...
2012-12-17
1,823 reads
Today I spoke at the Washington DC SQL Saturday #173. I first spent some time in the SQL Server Performance...
2012-12-09
736 reads
I am pleased to announce that I am speaking Thursday, December 6, at the SQLPASS Performance Virtual Chapter Winter 2012...
2012-11-30
1,307 reads
A special thanks goes to Daniel Angerer (t) for suggesting an improvement that corrected the divide by zero error that one...
2012-11-26
1,230 reads
Have trouble getting your new Nexus 7 connected to Windows so you can move some media files over?
Install the drivers...
2012-11-24
776 reads
I cannot believe how surreal this past SQL PASS Summit was for me. This was the second Summit I have...
2012-11-20 (first published: 2012-11-14)
1,951 reads
I will be speaking at SQL Saturday #173 in Washington DC at the Microsoft MTC in Chevy Chase, MD, to speak on...
2012-11-16
807 reads
Gregg Robertson (b | t) has posted a fantastic page that contains a tremendous amount of information for those of you...
2012-11-15
702 reads
WOW! I’m absolutely honored to announce that I am speaking with theKevin Kline tomorrow at the SQL PASS Summit 2012....
2012-11-09
684 reads
Yesterday I finally got around to adding a much needed improvement to my SQLIO Analyzer tool. You now get a...
2012-11-01
1,499 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