As DBAs, we all know how important it is to check all of the SQL Server databases under our care for potential corruption issues. However, to accomplish that, we might not have the time to do any of the following:
2020-02-14
In the second article of this series, Carlos Robles explains how to manage Docker images and containers.
2020-02-13
In this two-part tip, we are created a metadata-driven pipeline which will copy multiple flat files from Azure blob storage to an Azure SQL Database. The flat files can have different delimiters and are stored in different folders and there are multiple destination tables as well.
2020-02-12
I recently came across an issue in a SQL Server Availability Group scenario where queries against a heavily-used queue table were taking longer and longer over time.
2020-02-11
Floating point datatypes accommodate very big numbers but sacrifice precision. They are handy for some types of scientific calculations, but are dangerous when used more widely, because they can introduce big rounding errors.
2020-02-11
Robert Sheldon continues his series on storage. This article covers some of the basics of performance metrics, HDDs, and SSDs.
2020-02-10
Phil Factor delves into SQL Prompt's performance rule, PE012, which will advise you if it detects the use of the SET statements within a stored procedure or trigger, which might cause unnecessary recompilations, though the issue extends to other types of batches.
2020-02-07
Brent Ozar discusses performance tuning and how From the outside it looks more complicated than it is, but at the end of the day, it always comes back to just 3 knobs and knowing which ones you can turn.
2020-02-07
Window functions are useful for solving many SQL queries. In this article, Ed Pollack demonstrates how they can be used to analyse baseball winning streaks.
2020-02-06
Redgate has added new capabilities to the Deployment Suite for Oracle, so it now supports automated migrations-based and state-based Oracle deployments on both Linux and Windows. They've introduced Redgate Change Control, a new capability for understanding development changes, generating migration scripts for version control, and getting precise control over the migration path during automated deployments. Our Schema Compare and Data Compare for Oracle command line tools have been extended to Linux as well as Windows, and we’ve added static code analysis that encourages teams to follow good coding practices on Windows or Linux.
2020-02-06
By James Serra
I’m honored to be hosting T-SQL Tuesday — edition #192. For those who may...
By Vinay Thakur
Continuing from Day 2 , we learned introduction on Generative AI and Agentic AI,...
Quite the title, so let me set the stage first. You have an Azure...
hi everyone I am not sure how to write the query that will produce...
Comments posted to this topic are about the item Rollback vs. Roll Forward
Comments posted to this topic are about the item Foreign Keys - Foes or...
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