In the previous two articles in this series, you learned about SELECT and INSERT, two important data manipulation language (DML) statements in MySQL. In this article, I focus on the UPDATE statement, another valuable DML statement in MySQL.
2022-11-23
For a development team, SQL Backup provides a simple way to restore development or test databases, if required, while minimizing the tedium of the task of taking, managing, and restoring the backups. We can generate the required backup commands in the GUI and then use them to construct a SQL script that backs up all the required databases. We can even use the backup commands in a beforeMigrate SQL callback, in Flyway, to make sure the current version is safely backed up before we run migration.
2022-11-23
In this article, you will learn how to configure an RDS database for connections from client tools.
2022-11-21
3,078 reads
Learn about SQL Server triggers and how to use them for inserts, updates, and deletes on a table, along with step-by-step examples.
2022-11-21
Flyway Desktop is the newest way to automate database deployments. In this brand new course Kathi Kellenberger provides an overview of DevOps, including definitions, tools, and demos of some of the advanced features available in Flyway Desktop.
2022-11-21
This article shows how you can query your database files to get metadata about them and use that to get the reads, writes, and other IO statistics.
2022-11-18
10,249 reads
Learn how to refresh a Power BI dataset by integrating Power Automate into the report.
2022-11-18
Sometimes we want to check whether it is possible to run a Flyway migration without error, but not actually make the changes. We might just need to 'sanity test' the performance of a migration on the Staging server, for example. By using a placeholder 'switch' to trigger a SQL Exception, we can get Flyway to roll-back its transaction, and therefore the migration, on demand.
2022-11-18
2022-11-16
In this article, we look at how to use SQL LIKE statement to find various text patterns contained within a set of text along with many different examples of how to use LIKE.
2022-11-16
By HeyMo0sh
Microsoft Fabric (not to be confused with the more general term “fabric” in DevOps)...
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,...
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