Find Skew in Distributed Tables
The SQL Server PDW (Parallel Data Warehouse) is a beast of a machine. Spreading workload across multiple nodes inside the...
2012-09-11
1,515 reads
Blog Posts
Going to San Diego (#SQLSat157)
It appears that I signed up to speak at the San Diego SQL Saturday coming up this weekend. I knew...
2012-09-11
694 reads
Quick tip: Querying database metadata with DBCC DBINFO
Page 9 in file 1 (of the primary filegroup) in a SQL Server database is the header page and contains...
2012-09-11
2,119 reads
Talking Career and Unstructured Data
The Denver SQL Saturday is coming in less than two weeks, SQL Saturday #169 is our second event in Denver,...
2012-09-11
937 reads
T-SQL Tuesday – Help! I Need Somebody
By Jennifer Salvo
Today is T-SQL Tuesday #34 hosted by Rob Volk (B, T). This month’s topic is ‘Help! I Need...
2012-09-11
888 reads
T-SQL Tuesday #34 – Help! I Need Somebody
I couldn’t resist, so here goes….
Help, I need some data,
Help, not just any data,
Help, I was told you...
2012-09-11
983 reads
Colorado SQL - September 2012
COLORADO SPRINGS SQL
September 19, 2012 at 5:30 p.m.
Meeting Location: Hyatt Place - Garden of the Gods, 503 West Garden of the Gods...
2012-09-10
872 reads
Demystifying SQL Server Differential Database Backups
Odd Man Out
SQL Server has three backup types. Two you have heard of and used. One, while useful, isn’t very well understood.
Let’s...
2012-09-10 (first published: 2012-09-06)
2,803 reads
EXECUTE AS USER = ‘Somebody else’
As a database administrator I get lots of security requests. “Please grant me read authority on this table, write on that table,...
2012-09-10
742 reads
Have You Seen This Error?
location: AppendOnlyVerStoreMgr.cpp:776
Expression: 0
SPID: 64
Process ID: 4912
Description: Cannot locate version record and page is not allocated. Status = 3
Msg 3624, Level 20,...
2012-09-10
1,332 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