Database Sharding to help Improve Performance and Maintenance Tasks
In this article, we will review the benefits and drawbacks of using database partitioning (sharding) to help improve performance and maintenance tasks.
2023-01-13
Uncategorized
Using pre-commit to prevent simple mistakes
Git hooks are a useful way of triggering code quality scripts. The pre-commit tool provides us with a way of doing this and tapping into the huge library of scripts already in existence to ensure our code complies with general linting and formatting good practice.
2023-01-13
6,565 reads
How to Create a Box and Whisker Plot in Power BI Desktop
In this article, we look at how to build a box and whisker plot chart using Power BI Desktop with a step-by-step walkthrough.
2023-01-13
The Programming Languages We Use
Steve comments on some programming languages and how we approach those we choose to use.
2023-01-13
202 reads
2023-01-11
510 reads
Subqueries in MySQL
A subquery is a type of query that is embedded—or nested—into a data manipulation language (DML) statement. The subquery itself is typically a SELECT statement, although you can also use a TABLE statement or VALUES statement. Even so, the SELECT statement continues to be the most common choice for subqueries, and that’s the one I focus on in this article.
2023-01-11
How to Create a Power BI report using MySQL data
Introduction In this article, we will learn to create a Power BI report using MySQL data. The article will teach us to use the MySQL Workbench (something like the SSMS, but for MySQL). We will do the following in this article. First, we will connect and create a database in MySQL. Secondly, we will create a […]
2023-01-09
4,491 reads
Converting Data Across Time Zones: An In-Depth Primer
If only the entire world used UTC, wouldn’t life be so much easier? We can dream, can’t we? While some software applications can live in an ecosystem where all dates and times can be stored in a single time zone with no conversions needed, many cannot.
2023-01-09
2023-01-09
474 reads
Using sp_prepare and sp_execute to utilize prepared SQL statements
Learn about prepared statements in SQL Server, what they are, and how to use them along with the commands sp_prepare and sp_execute.
2023-01-06
Blogs
The Book of Redgate: Profits
By Steve Jones
Redgate is a for-profit company. We look to make money by building and selling...
Session Materials for Techorama & DataGrillen 2026
I’ve uploaded the slides for my Techorama session Microsoft Fabric for Dummies and my...
Stop Using Pandas for Aggregations — Try DuckDB Instead
If you've ever loaded a 2 GB CSV into pandas just to run a...
Forums
Even When You Know What You're Doing, You Can Screw Up
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The New Software Team
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Database Mail in SQL Server 2022
Comments posted to this topic are about the item Database Mail in SQL Server...
Question of the Day
The string_agg function
We create the following table and then insert some records in it:
create table t1 ( id int primary key, category char(1) not null, product varchar(50) ); insert into t1 values (1, 'A', 'Product 1'), (2, 'A', 'Product 2'), (3, 'A', 'Product 3'), (4, 'B', 'Product 4'), (5, 'B', 'Product 5');What happens if we execute the following query in both Sql Server and PostgreSQL?
select id,
category,
string_agg(product, ';')
over (partition by category order by id
rows between unbounded preceding and unbounded following) as stragg
from t1; See possible answers