How Old Are Your Database Statistics?
Unlike fine wine, database statistics do not improve with age. I recently helped out with a client who was having...
2010-09-02
3,375 reads
Blogs
Memory
Not a sound from the pavement. Have you ever come across a SQL query that used to run faster? Has that...
2010-08-30
5,561 reads
Defensive Db Programming Chapter 05
We are here again with after another week and ready for another episode in this series. Today we get to...
2010-08-27
4,181 reads
SSIS: Conditional File Processing in a ForEach Loop
I’ve fielded a number of requests recently asking how to interrogate a file within SSIS and change the processing rules...
2010-08-26
11,640 reads
Instant File Initialization Speeds SQL Server
Sometimes, its just the smallest of details that can make all the difference. For example, on my test system (see...
2010-07-27
3,072 reads
For SQL Server 2005/2008, Consider SecurityAdmin = SysAdmin
In a recent thread here on SQL Server Central, it was pointed out that a member of the securityadmin fixed...
2010-07-23
5,025 reads
Managing Your Backup Files
I recently posted a couple of scripts that backup all databases on your SQL Server instance to disk with a...
2010-03-31
1,271 reads
Why UniqueIdentifier is a Bad Choice for a Clustered Index in SQL Server
I had a question today about why it was “bad” to use a UniqueIdentifier as the data type for a...
2010-03-30
3,661 reads
An Un-CATCHable Error?
I've been using the scripting tools in SSIS for some time, but I came across something today that I can't...
2010-03-29
2,895 reads
Inserting into an XML document
I was reading through the latest XML Workshop article that I have from Jacob Sebastian. It’s a fantastic series for...
2010-03-26
1,476 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