DROP INDEX and CREATE INDEX vs ALTER INDEX REBUILD
I saw someone ask a few weeks ago if it was faster to drop and re-create an index or do...
2014-12-11
3,415 reads
Kenneth Fisher
TSQL Tuesday #61: Giving Back, you gain more than you give.
Almost four months ago I posted my goals for the next year in my two year anniversary post. I pretty...
2014-12-09
752 reads
Using a date or int column as the clustered index.
The other day I was answering a question about clustered indexes and it lead indirectly to a twitter conversation on...
2014-12-08 (first published: 2014-12-01)
6,988 reads
INSERT INTO SELECT vs SELECT INTO
INSERT INTO SELECT and SELECT INTO may be very similar commands but they have some important differences. Every now and...
2014-12-03
15,964 reads
You don’t really need ORDER BY do you?
You see dozens of blog posts and articles about how the order of a result set is not guaranteed without...
2014-12-01 (first published: 2014-11-19)
9,658 reads
Who’s on call
Kenneth Fisher:
I really enjoyed writing this post last year and honestly still enjoy reading it myself. And since tomorrow is...
2014-11-26
1,056 reads
Putting sp_ at the beginning of your stored procedure.
Every now and again you see articles and posts about putting sp_ at the beginning of a stored procedure. So...
2014-11-24
1,091 reads
Using T-SQL to populate a Central Management Server
We have been using a CMS (Central Management Server) at my office for the last few years. Even beyond the...
2014-11-24 (first published: 2014-11-17)
6,992 reads
Adding a column to the primary key.
Every now and again you realize that the primary key for a table does not uniquely describe a row. Not...
2014-11-13
1,087 reads
TSQL Tuesday #60: Something New Learned – What permissions does have?
What have I learned recently? Well as it happens I learned something rather interesting recently and was actually trying to...
2014-11-11
1,664 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