SQL GROUP BY Alias - An Oracle feature that would be great in SQL Server
Learn about using an alias in the GROUP BY clause for complex SQL Server code instead of having to rewrite the code in the GROUP BY.
2023-12-13
T-SQL
2023-12-13
250 reads
Window Function Basics - PARTITION BY
This article looks at the basics of the OVER() clause and how the PARTITION section works.
2023-12-08
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2023-12-06
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2023-12-04
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2023-11-29
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Time Series Data Mining Example with T-SQL when Adding New Data
Learn about working with time series data using T-SQL code and how to add additional data to the data set for more in-depth data mining.
2023-11-27
Unpivoting Multiple Sets of Columns in SQL Server using CROSS APPLY
Learn how to unpivot data or sets of data with SQL Server queries using CROSS APPLY.
2023-11-24
2023-11-22
443 reads
T-SQL Fundamentals: Controlling Duplicates
When people start learning a new field, for example T-SQL, it’s tempting to spend very little time trying to understand the fundamentals of the field so that you can quickly get to the advanced parts.
2023-11-22
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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