Working with SQL Server Data Files
Most people connect to a database, create tables, run update statements, tune queries, add indexes, and never once think about the underlying data and log files that support all...
2019-09-04
7 reads
Most people connect to a database, create tables, run update statements, tune queries, add indexes, and never once think about the underlying data and log files that support all...
2019-09-04
7 reads
Most people connect to a database, create tables, run update statements, tune queries, add indexes, and never once think about the underlying data and log files that support all...
2019-09-04
4 reads
Any database professional that has been around the Microsoft world for more than about 3 minutes will be familiar with the old, faithful sample dataset created and published by...
2019-09-02 (first published: 2019-08-22)
297 reads
Any database professional that has been around the Microsoft world for more than about 3 minutes will be familiar with the old, faithful sample dataset created and published by...
2019-08-22
10 reads
Any database professional that has been around the Microsoft world for more than about 3 minutes will be familiar with the old, faithful sample dataset created and published by...
2019-08-22
5 reads
Any database professional that has been around the Microsoft world for more than about 3 minutes will be familiar with the old, faithful sample dataset created and published by...
2019-08-22
4 reads
In a recent post I wrote about collecting server performance metrics using Performance Monitor, a free utility built into Windows. With a little work up front, we are able...
2019-08-13 (first published: 2019-07-30)
3,036 reads
In a recent post about creating Azure VMs using PowerShell, I noted a common issue that I run into where the name of the OS disk does not conform...
2019-08-08 (first published: 2019-07-16)
8,979 reads
In a recent post I wrote about collecting server performance metrics using Performance Monitor, a free utility built into Windows. With a little work up front, we are able...
2019-07-30
7 reads
In a recent post I wrote about collecting server performance metrics using Performance Monitor, a free utility built into Windows. With a little work up front, we are able...
2019-07-30
67 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...
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
Comments posted to this topic are about the item Answering Questions On Dropped Columns
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