The most important skill to practice when preparing for any certification exam!
I like practice tests. Once I feel like I’m getting ready to take a certification exam I start taking an...
2013-08-28
1,025 reads
Kenneth Fisher
Lots of ways to UNPIVOT a table
I recently read an awesome post on http://www.stackexchange.com questioning how to change columns to rows ie UNPIVOT. One answer demonstrated...
2013-08-21
1,318 reads
sp_SrvPermissions
Last week I posted my stored procedure for database permissions, sp_DBPermissions. A couple of days later I was demonstrating it...
2013-08-19
1,422 reads
How are COALESCE and ISNULL different?
At first glance these two functions seem very similar, and superficially they are. For example COALESCE(fieldname1, fieldname2) and ISNULL(fieldname1, fieldname2)...
2013-08-16 (first published: 2013-08-07)
8,887 reads
sp_DBPermissions
Last week I posted a series of database permissions scripts. I’ve been using them quite a bit over the last...
2013-08-14
1,447 reads
“My transaction log is too big!”
“My transaction log is too big!” I wish I had a dime for each time phrase has been spoke, written,...
2013-08-12
1,662 reads
Database Permissions Queries
Over the last year of blogging my thoughts and queries I’ve discovered something interesting. I posted Where is my Backup?...
2013-08-05
1,428 reads
Using DTEXECUI to generate a DTEXEC command line statement the easy way
SSIS is one of those tools that I love and hate at the same time. It’s a great ETL tool...
2013-08-05 (first published: 2013-07-31)
2,704 reads
Generic Dynamic SQL Stored Procedure
Recently I came across a post on http://www.StackOverflow.com that basically asked how to write a generic stored procedure to handle...
2013-07-31 (first published: 2013-07-22)
3,608 reads
Notes on debugging Database Mail problems
I’ve had to debug database mail problems several times over the last year or so. Below is a collection of...
2013-07-29
1,394 reads
Blogs
In-Person CISA Training – April 13-16, 2026
By Brian Kelley
I will be leading an in-person Certified Information Systems Auditor (CISA) exam prep class...
EightKB 2026
EightKB is back again for 2026! The biggest online SQL Server internals conference is...
The FinOps Lifecycle: From Budgeting to Reporting
By HeyMo0sh
Working in DevOps long enough teaches you two universal truths: That’s exactly why I...
Forums
VS Code, Unresolved References.
Hi all, I just started using VS Code to work with DB projects. I...
Fun with JSON II
Comments posted to this topic are about the item Fun with JSON II
Changing Data Types
Comments posted to this topic are about the item Changing Data Types
Question of the Day
Fun with JSON II
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 t1.[key] AS row,
t2.*
FROM OPENJSON(
(
SELECT t.* FROM #test_data AS t FOR JSON PATH
)
) t1
CROSS APPLY OPENJSON(t1.value) t2; See possible answers