Writing my presentation 2: Designing the presentation
This series is about my process for writing my upcoming presentation at SQL Saturday Chicago #825.
Today’s goals
Today I’m going to...
2019-03-08
342 reads
Finding single use plans in the plan cache
A single use plan is an entry in the SQL Server plan cache that was only used once. When a...
2019-03-07 (first published: 2019-02-19)
3,861 reads
Writing my presentation part 1: The brainstorm/dump
For this session, I’m relying on a mixture of previous blog posts and new material/demos that I’ll have to write....
2019-03-07
396 reads
Writing a new session/Preparing for SQL Saturday Chicago
So, I’m presenting a session at SQL Saturday Chicago on March 23, 2019. This is a new session, called Performance...
2019-03-06
260 reads
CTRL + F in SSMS execution plans
I just discovered this the other day and I had to share it.
First, we need a query in Management...
2019-03-05
629 reads
Partitioning 3: Beyond just partition elimination
In Partitioning 2, I showed how to analyze which partitions were accessed by our Index Seek. However, we were searching...
2019-03-04 (first published: 2019-02-14)
1,861 reads
It’s always parameter sniffing: Line Endings
Combining a few themes of recent posts today. I’ll mix in some sp_executesql, it’s always parameter sniffing, and the plan...
2019-02-28
949 reads
A short guide to sp_executesql
Last week I talked about single use plans. One way to increase execution plan re-use is to parameterize queries by...
2019-02-27
1,803 reads
Partitioning 1: Non-partition aligned queries
Here’s my take on partitioning. I’ll be focusing on getting queries to perform on partitioned tables, and not on partition...
2019-02-27 (first published: 2019-02-11)
2,484 reads
Database context and compatibility level
To add onto yesterday’s post about which cardinality estimator (CE) your query will use, there’s an additional complexity. This specifically...
2019-02-26
825 reads
Blogs
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...
What DevOps Look Like in Microsoft Fabric
By HeyMo0sh
Microsoft Fabric (not to be confused with the more general term “fabric” in DevOps)...
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