The End of SQL Server 2019
Steve has a few thoughts after the end of mainstream support for SQL Server 2019.
2025-03-26
1,055 reads
SQL Server 2019
Batch Execution Mode on a Rowstore in SQL Server 2022
Batch execution mode is a new optimization feature in SQL Server. In this Article, we'll explore how Batch execution mode works and how you can use it to get faster query results on Rowstore data.
2023-10-30
4,592 reads
Has SQL Server Performance Improved?
This week Steve found a question of whether SQL Server 2019 uses more CPU than 2016.
2023-04-01
719 reads
2023-03-13
408 reads
2021-09-08
823 reads
Understanding Hybrid Buffer Pool in SQL Server 2019
In this article we look at the Hybrid Buffer Pool available in SQL Server 2019 and how to enable and disable this feature for SQL Server.
2021-08-09
2021-04-27
840 reads
2021-02-25
522 reads
2021-02-11
785 reads
Table Variable Deferred Compilation (SQL 2019)
I have explored the SQL Server 2019, Intelligent Query Processing Feature – “Table Variable Deferred Compilation”.
The script contains some theory at the top and links to read.
After that, there are required queries to run on SQL Server 2019.
This way we can see the feature in action and look at it's strengths and caveats.
2020-08-03
1,642 reads
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Forums
Fun with JSON II
Comments posted to this topic are about the item Fun with JSON II
Changing Data Types
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Answering Questions On Dropped Columns
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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