MS SQL Server : Nested Transaction and Partial Rollback of Transaction
Couple of days back, one of my colleague came to me and asked about partial rollback of a transaction.He was trying...
2012-05-20
13,686 reads
Couple of days back, one of my colleague came to me and asked about partial rollback of a transaction.He was trying...
2012-05-20
13,686 reads
In my earlier post, I have explained how to move the MSDTC disk to new SAN. In this post we...
2012-04-23
9,476 reads
In my previous post , I have explained about the different types of fragmentation and how it will affect the query performance....
2012-04-20
11,714 reads
When I was working with couple of frequent blocking issue in our live server, I have noticed different types of...
2012-04-12
32,234 reads
When I had a discussion with couple of my friends about index fragmentation, I realized that they have different understanding...
2012-04-06 (first published: 2012-04-05)
35,322 reads
Today morning I was working on one of the server to complete the regular documentation of security audit with details...
2012-03-29
1,944 reads
We have four node cluster on Windows 2008 where the MSDTC disk hosted on a SAN array. Now we have...
2012-03-28
5,952 reads
Recently I have upgraded one of our SQL server 2005 instance to Service Pack 3 and later point of time...
2012-03-26
1,250 reads
OR
How do you allow non-administrator to use xp_cmdshell ?
From the day I started working with SQL server, I have heard
about...
2012-03-22
4,547 reads
Yesterday evening one of the developer asked me that he need a help in importing images into a table. It...
2012-03-15
11,326 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