How to write an UPDATE query
My First UPDATE Statement Last week we covered how to put information into a table using an INSERT statement. This...
2017-06-07
136 reads
My First UPDATE Statement Last week we covered how to put information into a table using an INSERT statement. This...
2017-06-07
136 reads
My First INSERT Statement Last week we covered how to get information out of a table, using a SELECT query....
2017-05-31
393 reads
My First SELECT Statement Microsoft SQL Server makes it really easy for us to query tables. In SQL Server Management...
2017-05-24
164 reads
When we want to retrieve information from a database, we query the structure with language appropriate to the database. Remember...
2017-05-17
104 reads
Version numbers are confusing. SQL Server Management Studio (SSMS), the client user interface by which most DBAs access SQL Server,...
2017-05-10
238 reads
By now you will have heard that the next version of SQL Server has been announced. There’s no release date yet,...
2017-05-03
96 reads
You’re reading this series of posts because you want to learn about databases and how to use them. What you...
2017-04-26
98 reads
Taking a short break from the Database Fundamentals series of the last few weeks, I’d like to mention some upcoming...
2017-04-19
114 reads
A friend of mine in the filmmaking business, who is exceedingly bright but has never worked with SQL Server before,...
2017-04-12
102 reads
If there’s one thing that SQL Server is really good at, it’s relationships. After all, a relational database management system...
2017-04-05
114 reads
By HeyMo0sh
Microsoft Fabric (not to be confused with the more general term “fabric” in DevOps)...
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Hi Team, I am trying to refresh the Azure Synapse Dedicated pool from production...
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hi everyone I am not sure how to write the query that will produce...
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