How to Measure IO Latency for Database Files in SQL Server
In order to get information about the amounts of PHYSICAL reads we perform on database files, SQL Server exposes a...
2015-04-08
1,362 reads
In order to get information about the amounts of PHYSICAL reads we perform on database files, SQL Server exposes a...
2015-04-08
1,362 reads
When you configure log shipping, there are 4 SQL Server Agent jobs that are set up:
Backup: Performs a backup log...
2015-04-02 (first published: 2015-03-30)
6,891 reads
It’s been a great a busy week.
On Wednesday, I presented my session, “Query Progress Tracking in SQL Server” at SQLRally...
2015-03-06
602 reads
Traditionally, we want our Clustered Index to have the following attributes:
Narrow: So that our clustered index and the non-clustered indexes that point...
2015-03-03
666 reads
Next week, I’m going to visit London and Copenhagen for SQLBits and SQLRally Nordic. It’s going to be intense and...
2015-02-24
456 reads
This Monday, at SQLSaturday Israel, I presented my new session, “The Data Loading Performance Presentation”.
I worked on the session a...
2015-01-21
552 reads
Last week, Boris Hristov (b|t), the organizer of #SQLHangout, invited William Durkin (b|t) and me to a SQL Hangout about transitioning...
2015-01-15
543 reads
2015 is here!
Last year I wrote about what I had learned in 2013, and I try to make it a...
2015-01-06
756 reads
Clustered Columnstore Indexes, as well as “regular” indexes, support the Rebuild and Reorganize operations. However, the meaning of those operations...
2014-12-16 (first published: 2014-12-11)
6,754 reads
Let’s say you build or rebuild an index in SQL Server. Your users and boss are anxious to know when...
2014-11-11 (first published: 2014-11-06)
8,374 reads
By Vinay Thakur
Continuing from Day 3 where we covered LLM models open/closed and their parameters, Today...
By Steve Jones
One of the nice things about Flyway Desktop is that it helps you manage...
By HeyMo0sh
Microsoft Fabric (not to be confused with the more general term “fabric” in DevOps)...
I'm fairly certain I know the answer to this from digging into it yesterday,...
Hi Team, I am trying to refresh the Azure Synapse Dedicated pool from production...
hi everyone I am not sure how to write the query that will produce...
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