Here is some short description of GoF design patterns. It is just to remind the explanations. so first you have to understand each design pattern separately.Adapter Pattern: Convert the interface...
2020-04-11
85 reads
Here is some short description of GoF design patterns. It is just to remind the explanations. so first you have to understand each design pattern separately.Adapter Pattern: Convert the interface...
2020-04-11
22 reads
In [Contravariant]
The image is self-explanatory.
Out [Covarient]
The image is self-explanatory.
2018-10-15
220 reads
In [Contravariant]The image is self-explanatory.
Out [Covarient]The image is self-explanatory.
2018-10-15
41 reads
Azure VMs
Usually you should convey to developers and testers to shut down the VMs manually when they are not using...
2018-09-11
166 reads
Azure VMs
Usually you should convey to developers and testers to shut down the VMs manually when they are not using non production virtual machines. Also there some ways to...
2018-09-11
19 reads
Error: Generic error: ExpressionChangedAfterItHasBeenCheckedError: Expression has changed after it was checked. Previous value: 'isLoading: [object Object]'. Current value: 'isLoading: true'
Resolution:
setTimeout the...
2018-08-17
1,219 reads
Error: Generic error: ExpressionChangedAfterItHasBeenCheckedError: Expression has changed after it was checked. Previous value: 'isLoading: [object Object]'. Current value: 'isLoading: true'Resolution:setTimeout the code that is setting the value. In my case,...
2018-08-17
165 reads
2018-05-16
861 reads
Azure data centers and Regions:
Azure data centers are located worldwide and a team/division MCIO (Microsoft Cloud Infrastructure and Operations) manages all the data centers...
2017-12-06 (first published: 2017-11-24)
1,737 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