Azure SQL Database and Columnstore Indexes
I have come to understand the importance of using columnstore indexes when my queries are aggregating and scanning across many...
2018-04-19 (first published: 2018-04-09)
2,218 reads
I have come to understand the importance of using columnstore indexes when my queries are aggregating and scanning across many...
2018-04-19 (first published: 2018-04-09)
2,218 reads
If I was a wizard I would make these 4 improvements to Azure SQL Database. They are in no particular...
2018-04-12 (first published: 2018-04-05)
2,182 reads
Initially, the main focus of this post was going to be quick and about using the latest version of SSMS...
2018-04-12
875 reads
After demo building and testing features out within Azure SQL Database I like to delete the databases to save costs....
2018-04-03
372 reads
I was looking forward to do some work with Azure SQL Data Warehouse (DWH) when I hit the new query...
2018-04-03 (first published: 2018-03-27)
3,464 reads
We all know that the magic figure for cost threshold for parallelism is 5 by default, meaning if the estimated...
2018-03-26 (first published: 2018-03-16)
2,328 reads
I have decided to do a summary blog post on backup and recovery options for Azure SQL Database. If you...
2018-03-26
580 reads
Back in September 2017 Microsoft announced a new security feature for Azure SQL Database called the SQL Vulnerability Assessment (VA)....
2018-03-22
997 reads
This command only applies to Azure SQL Database, at a high level it empties the database authentication cache for logins...
2018-03-14
734 reads
When you create a “logical” Azure SQL Server (I say logical because we are not really physically creating anything) there...
2018-03-09 (first published: 2018-03-01)
2,487 reads
By HeyMo0sh
Microsoft Fabric (not to be confused with the more general term “fabric” in DevOps)...
By James Serra
I’m honored to be hosting T-SQL Tuesday — edition #192. For those who may...
By Vinay Thakur
Continuing from Day 2 , we learned introduction on Generative AI and Agentic AI,...
hi everyone I am not sure how to write the query that will produce...
Comments posted to this topic are about the item Rollback vs. Roll Forward
Comments posted to this topic are about the item Foreign Keys - Foes or...
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