In-Memory OLTP and the Identity Column
Over the past month I've been playing around with the new In-Memory OLTP (code name: "Hekaton") features within SQL Server...
2013-11-12
1,511 reads
Everyday SQL
TSQL Tuesday #47 - Your Best SQL Server SWAG
The host for T-SQL Tuesday #47 is Kendal Van Dyke (blog|twitter), and his topic of choice is about the best...
2013-10-08
952 reads
One Year Later
Wow! It’s been one year since I launched my blog, and my how things have changed.
Accomplishments Over the Past...
2013-09-24
695 reads
The Case of the NULL Query_Plan
As a DBA, we're often asked to troubleshoot performance issues for stored procedures. One of the most common tools at...
2013-09-06 (first published: 2013-09-03)
3,261 reads
How to Tell If Your Users are Connecting to the Availability Group Listener
You've spent a lot of time planning and building out a new SQL Server 2012 environment complete with Availability Group...
2013-08-29 (first published: 2013-08-27)
2,408 reads
PASS Summit 2013 - You Ain't From Around Here Are Ya?
I know what y'all are thinkin', what's Charlotte got to do with SQL Server? Just hear me out. There's a...
2013-08-20
1,281 reads
Are You the Primary Replica?
UPDATED -- Jul 3, 2015 -- To verify database exists, per comments by Konstantinos Katsoridis. Thanks for finding the bug!
In my recent adventures...
2013-07-23
1,645 reads
Setup an Availability Group with Multiple Subnets in VMware Workstation
Before we get started, I want to make it clear this is NOT how you would normally configure all these...
2013-07-16
2,520 reads
VMware vSphere Storage Performance - Thick vs Thin Provisioning
Industry experts will tell you that virtualization of your environment is not done to improve performance, it's done to make...
2013-06-25
4,437 reads
Investigating Plan Cache Bloat
SQL Server includes a DMV, sys.dm_exec_query_stats, that returns performance statistics for each query plan cached in memory. However, it can...
2013-05-28
1,136 reads
Blogs
AI: Blog a Day – Day 5: Notebooks, Hugging face models and Fine Tuning
By Vinay Thakur
Continuing from Day 4 where we learned Encoder, Decoder, and Attention Mechanism, today we...
AI: Blog a Day – Day 4: Transformers – Encoder, Decoder, and Attention
By Vinay Thakur
Continuing from Day 3 where we covered LLM models open/closed and their parameters, Today...
Flyway Tips: Multiple Projects
By Steve Jones
One of the nice things about Flyway Desktop is that it helps you manage...
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