Category Archives: Using MariaDB
This sounds like a lame cross-genre joke, but it is not. It is a lame cross-genre math problem. I have to admit, it didn’t have those names when I read about it, but I wanted to make it a bit more epic. So,
Sauron says to Dumbledore and Merlin, finally I have captured you both. Now I shall select two numbers, greater than one, less than a hundred. Dumbledore shall know their product and Merlin shall know their sum. If you, fools, will be able to tell me the numbers I have chosen, I shall let you free.
In this blog we will show how to access MySQL and MariaDB DBMS tables from MariaDB Server. For that we will use Connect Storage Engine (SE), which supports different table types options. In this case we will use the JDBC table type. To use the JDBC table type we need to specify it in the CREATE TABLE definition for Connect SE and we need the Java connector for the DBMS we are accessing. For demonstration purposes we will use containers, but this will work if the servers are running in VMs or bare-metal. Just make sure the machines can access each other via TCP/IP.
Continue reading “Connect SE JDBC table type: Accessing Tables From Another DBMS”
In this blog we are going to learn how to migrate data from Oracle to MariaDB.
To begin, we’ll learn the basics about Oracle database to have an understanding about the steps that are done on the demo example. After, we will create a table in Oracle and migrate it to MariaDB.
To migrate data from Oracle there are 2 ways:
- Dump Oracle data to CSV and load data in MariaDB.
- Use the Connect Storage Engine to create or insert into a table from Oracle’s source definition.
For demonstration, we are going to use a docker container with an Oracle Express Edition (XE) image.
Continue reading “Data migration from Oracle to MariaDB with Docker and Connect SE: A Step-by-Step Guide”
This is the next in the series of posts exploring ChatGPT and its insights about MariaDB. The series began with ChatGPT, OpenAI and MariaDB Foundation, followed by Ask ChatGPT – Getting Started with MariaDB: A Comprehensive Guide for Beginners.
This week’s topic, suggested by ChatGPT itself, was “MariaDB Performance Tuning”. So how did it do?
MariaDB is undoubtedly one of the most popular open-source database management systems available today, with a strong focus on performance and ease of use. Whether you are a developer, database administrator, or an IT professional, ensuring that your MariaDB installation performs efficiently is crucial.
Continue reading “Ask ChatGPT: MariaDB Performance Tuning: Tips and Tricks”
This is the next in a series of posts on our explorations with ChatGPT that started with ChatGPT, OpenAI and MariaDB Foundation. Here, we asked ChatGPT to generate a blog post, and Chief Innovation Officer Daniel Black reviewed the results.
“Getting Started with MariaDB: A Comprehensive Guide for Beginners” is the question we asked ChatGPT. What we got is below. Rather than a blog on what you could have done yourself, I’ll look through the answer below and see how accurate it is, what could be better/worse, and assume this is some reflection on the references that the engine was trained on.
Continue reading “Ask ChatGPT – Getting Started with MariaDB: A Comprehensive Guide for Beginners”
When everybody and their grandmother are talking about ChatGPT, you know something is happening – something with significance outside the usual IT bubble. As the first in a series of blog entries, let me reflect upon what AI means for users of MariaDB Server – or, at least, what implications we at the MariaDB Foundation can see at this point in time.
The AI revolution is inevitable …
Pundits say that lawyers or programmers won’t be replaced by AI – but they will be replaced by lawyers or programmers that use AI. I would agree.
One of the most straightforward ways to add functionality to MariaDB or MySQL server instances is by creating a user-defined function (UDF). These are compiled functions loaded from dynamic binaries that can be much more performant and flexible than what can be written in SQL, providing the same capabilities as builtin functions.
These UDFs are typically written in C or C++, but a library is now available that makes it easy to write them in Rust. This blog discusses some of the reasoning for writing this library, followed by a very basic usage example that doesn’t require any experience with the language.
Yes, it is a bit of a click-bait title, but in this case running one SQL command did improve a community user’s performance by that much. It could help you too.
A community user posted in a couple of places that when migrating a large WordPress installation to MariaDB that they were seeing a certain query performing terribly. The query was taking 1.5 seconds to execute and it was clear from the explain plan that the optimizer was not making an ideal decision about the join order.
The query was generated by WordPress so it would not be easy to force an index, or rewrite the query.
Continue reading “This one trick can make MariaDB 30x faster!”