Answering Questions On Dropped Columns
Answering a couple of questions from the previous posts about dropping columns.
2026-03-18
20 reads
Microsoft SQL Server
Database Ledger in SQL Server 2022
Learn how ledger databases and ledger tables work in SQL Server 2022.
2025-10-20
16,687 reads
Taming Resource Hogs: Using SQL Server Resource Governor to Restrict User Group Consumption
Taming Resource Hogs: Using SQL Server Resource Governor to Restrict User Group Consumption As a SQL Server professional, I've often encountered situations where a single, poorly written query or a resource-intensive application threatened to cripple the entire database server. Performance bottlenecks, unexpected slowdowns, and user complaints become the norm, making your life as a DBA […]
2025-07-24
1,263 reads
How to process images and analyze charts with AI
See how ChatGPT can get data from images and conduct analysis on the data.
2025-06-16
2,211 reads
2024-06-17
15,835 reads
SQL Server and Python Tutorial
This article will show the basic outline for how Python scripts can access and work with data in SQL Server.
2023-11-06
19,655 reads
Batch Execution Mode on a Rowstore in SQL Server 2022
Batch execution mode is a new optimization feature in SQL Server. In this Article, we'll explore how Batch execution mode works and how you can use it to get faster query results on Rowstore data.
2023-10-30
4,592 reads
Optimized Plan Forcing with Query Store in SQL Server 2022
In this Article , We will delve into the world of Query Store and explore how to use Optimized Plan Forcing to improve performance in SQL Server 2022. We will discuss what it is, how it works, and how it can impact your system's performance.
2023-09-04
5,347 reads
SQL Server Resumable Index Operations
The ability to pause and then resume index rebuilds has been added to SQL Server. This is a fantastic feature, and with the release of SQL Server 2019, we can now replicate it on the actual create index process. Learn how to use this feature in this short article.
2023-06-26
12,861 reads
How to Find the SQL Server Version
This article shows a number of ways in which you can find out the version of your instance.
2023-06-23
7,258 reads
Blogs
Cost Visibility: Tracking and Analysing Your Cloud Spend
By HeyMo0sh
One of the biggest challenges I’ve faced in cloud operations is maintaining clear visibility...
Whiling away an afternoon, thinking
By Steve Jones
I come to Heathrow often. Today is likely somewhere close to 60 trips to...
Black Box vs. Gray Box vs. White Box Testing
By Brian Kelley
If your organization is spending money, then meaningful results are a must. Pen testing...
Forums
Fun with JSON II
Comments posted to this topic are about the item Fun with JSON II
Changing Data Types
Comments posted to this topic are about the item Changing Data Types
Answering Questions On Dropped Columns
Comments posted to this topic are about the item Answering Questions On Dropped Columns
Question of the Day
Fun with JSON II
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