Codership is pleased to announce a new Generally Available (GA) release of the multi-master Galera Cluster for MySQL 5.7, consisting of MySQL-wsrep 5.7.42 (release notes, download) and MySQL-wsrep 8.0.33 (release notes, download), with Galera replication library 4.15 (release notes, download) implementing wsrep API version …

Yesterday, I published an article explaining how to easily deploy Apache Superset on OCI using MySQL HeatWave Database Service.

There are some people not using the automation or not using MySQL HeatWave Database Service on OCI but want to still use Superset with MySQL 8.0.

In this blog, we will see how to fix eventual errors when performing the installation manually.

SQL Alchemy Dialect Configuration

When using MySQL 8.0, in Superset’s config file, you need to specify the SQLAlchemy URI like this:

SQLALCHEMY_DATABASE_URI = 'mysql+mysqlconnector://<user>:<password>@<host>:<port>/<superset_schema>'

It is important to specify the database backend and dialect: mysql+mysqlconnector.

Of course you need to install the MySQL …

Here’s a quick catalog for my students of PowerShell, JavaScript, and Python examples connecting to MySQL:

• MySQL Powershell Connection with .Net Library Example
• MySQL Powershell Connection with ODBC DSN Example
• MySQL Powershell with CSV File Write Example
• MySQL Powershell with Dialog for Dynamic Connection Inputs
• MySQL Node.js Introduction without Bind …

We already saw how to deploy Apache Superset with MySQL HeatWave.

I just released a new version of the Terraform modules including some configuration parameters for a future development related to High Availability.

So let’s see the easiest way to deploy Superset on OCI using MySQL HeatWave.

Quick Deployment

The default deployment is the following:

The fastest and easiest way to deploy such architecture is to click on the button below:

When you click on the button, you will reach the following screen if you are …

How to deploy Apache Superset with MySQL HeatWave and how to benefit from HeatWave's query accelerator.

One of the hidden gems in the MySQL documentation is this note in section 8.3.6: As an alternative to a composite index, you can introduce a column that is “hashed” based on information from other columns. If this column is short, reasonably unique, and indexed, it might be faster than a “wide” index on many columns. We will build on this idea by creating generated hash columns for indexed lookups on large values and enforcing uniqueness across many columns. Instead of creating huge composite indexes, we'll index the compact generated hashes for fast lookups. Before diving into generated hash columns, let's look at generated columns in general. Generated columns in MySQL A generated column can be considered a calculated, computed, or derived column. It is a column whose value results from an expression rather than direct data input. The expression can contain literal values, built-in functions, or references to other columns. The result of …

Creating generated hash columns in MySQL for faster strict equality lookups.

Learn how Multi-Valued Indexing in MySQL 8.0 can enhance query performance by efficiently indexing and querying JSON arrays. Discover the benefits, implementation steps, and considerations for optimizing your MySQL database.

1. Multi-Valued Indexing in MySQL 8.0
2. Understanding Multi-Valued Indexes and their benefits
3. Creating Multi-Valued Indexes in MySQL …

Thanks so much for reading OpenLampTech. Here is this week’s newsletter, full of great content all about PHP, MySQL, and the LAMP stack. Several WordPress and WooCommerce reads too.

Custom WooCommerce and Shopify Solutions

Discover useful WooCommerce and Shopify custom solutions for your online store today at affordable prices!

Learn More

The Newsletter for PHP and MySQL Developers

Receive a copy of my ebook, “10 MySQL Tips For Everyone”, absolutely free when you subscribe to the OpenLampTech newsletter.

In OpenLampTech issue #82, we have articles covering:

• WordPress …

MySQL Heatwave, a fully managed database service, not only provides customers with one database service for OLTP, OLAP, and ML, but it also supports centralized access management for these databases via integration with OCI IAM. Using Oracle Cloud Infrastructure Identity and Access Management (OCI IAM) customers can protect themselves against security threats, streamline access management, and achieve governance and compliance with industry standards.