ABL: Always Be Learning
If you have been in the IT field for any length of time, I’m sure you have heard the phrase...
2011-05-25
1,531 reads
If you have been in the IT field for any length of time, I’m sure you have heard the phrase...
2011-05-25
1,531 reads
This year’s devLINK Technical Conference will be held at the Chattanooga Convention Center, Chattanooga, TN this upcoming August 17-19, 2011....
2011-05-25
642 reads
A discussion of how joins significantly outperform subqueries and how this is more evident when OR conditions are involved.
SQL queries...
2011-05-25
949 reads
It’s been almost two weeks since we wrapped up our first SQLRally, and in some ways it hasn’t quite sunk...
2011-05-25
649 reads
Over time it's easy to lose track of the things you set up to get work done. As a consultant,...
2011-05-25
1,218 reads
New Whitepaper: Performance Evaluation of Hosting TempDB on FusionIO
A colleague I work with on the PQO* Operations SQL V-Team, Jonathan...
2011-05-25
1,511 reads
SQLServerCentral.com, along with Red Gate Software, are glad to announce that nominations for the fourth annual Exceptional DBA Awards are...
2011-05-25
1,432 reads
Did you ever accidentally close SQL Server Management Studio? And, in closing SSMS, did you get the prompt that says...
2011-05-25
916 reads
One thing that is enjoyable about my position is working with people who have no idea what SQL is besides...
2011-05-25
1,170 reads
I bloog about mysql to sql server migration lastly here Today found very good migration tool Free Downloads: 1. SSMA...
2011-05-25
671 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