SQL Server, What's In My Buffer Cache?
When SQL Server reads pages it stores them in an area of memory called the buffer cache, things like memory...
2019-03-06 (first published: 2019-02-19)
2,243 reads
Gavin Draper
SQL Server Script To Check Your Backup RPO Status
I recently wanted a script to tell me that for every database on a given server
What levels of backups I...
2019-02-28 (first published: 2019-02-13)
3,314 reads
How To Check How Far Behind Your SQL Server Log Shipping Secondary Is
Log shipping is one of the simplest and most bulletproof methods to get SQL Server to replicate data to a...
2019-02-21 (first published: 2019-01-31)
2,745 reads
Odd Behavior With LOB/Overflow Data
In writing some sample demos around LOB and Row-Overflow data I found a couple of oddities in the way reads...
2019-02-20
158 reads
How to Encrypt and Restore Your SQL Server Database Backups
We’ve had backup encryption out of the box since SQL Server 2014, yet I’ve rarely seen it used. In an...
2019-02-19 (first published: 2019-01-28)
11,203 reads
SQL Server, What Waits Happened In The Last X Seconds
There are plenty of scripts out there that can show you the waits that are occurring on your server, however,...
2019-02-18
169 reads
Why You Shouldn't Use SELECT * In Production Systems (EVER!)
OK so the title is a bit of a bold statement but bear with me, I’ve been burned by this...
2019-02-11 (first published: 2019-01-23)
6,770 reads
Backing Up and Restoring Your On-Premise Databases To and From the Cloud
I’ve been meaning to start a series of posts on “Dipping your toes into the cloud” for a while now,...
2019-01-30
213 reads
Dodging Deadlocks With Indexes
A lot of people don’t realise that some deadlocks can be removed entirely with the introduction of a new index....
2019-01-23 (first published: 2019-01-14)
6,469 reads
Leveling Up Your TSQL
I thought I’d use this post to round up some of my other posts into a list of often overlooked/unknown...
2019-01-22
255 reads
Blogs
What DevOps Look Like in Microsoft Fabric
By HeyMo0sh
Microsoft Fabric (not to be confused with the more general term “fabric” in DevOps)...
T-SQL Tuesday #192: What career risks have you taken?
By James Serra
I’m honored to be hosting T-SQL Tuesday — edition #192. For those who may...
AI: Blog a Day – Day 3: LLM Models – Open Source vs Closed Source
By Vinay Thakur
Continuing from Day 2 , we learned introduction on Generative AI and Agentic AI,...
Forums
Can an Azure App Service Managed Identity be used for SQL Login?
I'm fairly certain I know the answer to this from digging into it yesterday,...
Azure Synapse database refresh
Hi Team, I am trying to refresh the Azure Synapse Dedicated pool from production...
how to write this query?
hi everyone I am not sure how to write the query that will produce...
Question of the Day
Fun with JSON I
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