I'm writing this the day after the US holiday of Thanksgiving. Lots of things are said about Thanksgiving, positive, negative, in between. The core concept of the holiday is to take a moment to take stock of what you have. It's a good idea. Every so often, look around and acknowledge, depending on anyone's situation, […]
2021-11-27
107 reads
Microsoft announced the release of the next version of SQL Server, 2022. There's a bunch of new enhancements that we can all get excited about. I can't wait to test the "Parameter Sensitive Plan" optimization myself. We can look forward to seeing this stuff in action, and in detail, at the PASS Data Community Summit […]
2021-11-06
426 reads
In addition to trying to get better at SQL Server, Redgate Software, and all the various aspects of my job, I'm also trying to get better at this whole human interaction thing AND I'm working on trying to learn PostgreSQL much more deeply. Whew! Yeah, may not seem like a whole lot, but I assure […]
2021-10-16
271 reads
I spent a chunk of the day yesterday, after work, but before working on a new book (yeah, I've got two jobs now), playing with my radios. I was programming the digital one to get it to use my Raspberry Pi as a hotspot (it used to work, now it doesn't). I also spent some […]
2021-09-25
214 reads
I've recently moved house from Massachusetts to Oklahoma. Long story. Anyway, sitting in my new office looking out at the trees, some of the leaves are starting to change. Ah, Fall. Lovely Autumn colors... WAIT! Actually, something else is going on. Only a few trees are changing color. Word is, we've been a little dry […]
2021-09-04
181 reads
After 23 years in one place, I'm pulling up stakes and moving. We're selling our house in one state in the US and we're buying a house in another state about half a continent away. To say it's a stressful and exhausting process is an understatement. The worst part is that no one has defined […]
2021-07-24
203 reads
This is the Fourth of July weekend here in the US when we celebrate the birth of the country based on the publication of the Declaration of Independence. For those who don't know, this celebration mostly consists of fireworks and outdoor cookouts. However, at our house we've always tried to do a little bit more […]
2021-07-03
129 reads
I've just finished up teaching at an in-person event, the first in fifteen months. It was the SQL Server and Azure SQL Conference (formerly known as SQLIntersection). The event organizers did a great job making it into a hybrid event, where we presented both in-person and virtually, so that people could choose if they wanted […]
2021-06-12
135 reads
There was a recent discussion in the forums here at SQL Server Central regarding the difficulties presented by the constantly shifting technology landscape. The core question was, how on earth do you master stuff? Especially, how do you master things when they're both new and constantly changing? Honestly, you don't. I mean, you can, but […]
2021-05-08
254 reads
A while back I wrote an editorial about how I believed the data community would easily continue after the PASS organization was no more. I'm pleased as punch to be able to report that I was right. Not because I enjoy being right (I do, who doesn't), but because I care very much for the […]
2021-04-18
102 reads
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Comments posted to this topic are about the item Fun with JSON II
Comments posted to this topic are about the item Changing Data Types
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