How to Edit Read-Only Non-clustered Columnstore Data
As I've discussed in some of my previous posts, creating a non-clustered Columnstore index will make the index as well...
2014-08-06 (first published: 2014-07-29)
8,114 reads
Patrick
- Twitter: @patrickkeisler
- Website: https://www.patrickkeisler.com
- LinkedIn: https://www.linkedin.com/in/patrickkeisler/
Columnstore Table Analyzer
As I’ve discussed in some of my previous posts, there are quite a few data types that cannot be part...
2014-07-08
761 reads
Columnstore Memory Grant Issue
In a previous post about non-clustered columnstore indexes, I mentioned the creation of an index is a very memory intensive...
2014-06-03
2,182 reads
Comparison of Columnstore Compression
SQL Server 2012 introduced non-clustered columnstore indexes, and SQL Server 2014 gave us clustered columnstore indexes. Both share the same...
2014-05-20
1,833 reads
What is a Non-Clustered Columnstore Index?
First introduced in SQL Server 2012, the Columnstore index is a new in-memory feature that allows for the creation of...
2014-04-29
5,580 reads
The system_health Extended Event Session
When I first started poking around in SQL Server 2012, I noticed an extended event session called “system_health” was created...
2014-04-21 (first published: 2014-04-08)
4,053 reads
How Long is that SQL Command Going to Take?
Have you ever needed to restore a large database while someone is standing over your shoulder asking “How long is...
2014-03-04
3,238 reads
My Experience Aboard SQL Cruise 2014
Where do I begin? First let me say, WOW what an experience!
How it All Began
When I first heard about SQL...
2014-02-11
1,370 reads
Collecting Historical IO File Statistics
In a previous post, Collecting Historical Wait Statistics, I discussed how you can easily collect historical wait stats by using...
2013-12-17
1,470 reads
Collecting Historical Wait Statistics
As a DBA, I'm sure you've heard many times to always check the sys.dm_os_wait_stats DMV to help diagnose performance issues...
2013-12-16 (first published: 2013-12-11)
2,506 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