This is the second episode of “Discovering MySQL Database Service“, a series of tutorials where I will show you, step by step, how to use MySQL Database Service and some other Oracle Cloud Infrastructure services.

In the previous episode we've introduced the different components that we will use during this Discovering MySQL Database Service journey.

In this episode, we'll see what is a compartment and how to create one and use it in order to create a MySQL DB system.

The post Discovering MySQL Database Service – Episode 2 – Create a compartment first appeared on dasini.net - Diary of a MySQL expert.

On December 2, Edward Screven, Oracle’s chief corporate architect revealed the Oracle MySQL Database Service with Analytics Engine known as HeatWave.

During Oracle Live on August 10th, 9AM PST, 12 noon ET / 1 PM BRT / 6 PM CEST, Edward Screven will share our latest MySQL innovations, along with the latest benchmarks, that show the speed and cost savings gained with MySQL HeatWave.

HeatWave, in-memory query accelerator for the Oracle MySQL Database Service, allows customers to run very fast analytics queries directly against their MySQL databases entirely avoiding the step of data ETL into a …

On Oracle Cloud Infrastructure, aka OCI, MySQL Database Service, aka MDS uses the snapshot technology to backup your data.

This article is the second part of multiple part blog series. In part 1, we dealt with taking snapshots as backup. In this part, we deal with restoring the data.

Managed Snapshots

We saw in the post one how to create the snapshots automatically (Backup Plan) or Manually. Both type of backups are what we call Managed Snapshots. This means that as a user, we don’t have access to the Object Storage where the backup is stored.

So what’s the purpose of these snapshots ?

Let’s see them:

Data Restore

Restoring a MDS backup is recommended of course to save the data and in case of issue (hardware or software problem unlikely or human issue more …

On Oracle Cloud Infrastructure, aka OCI, MySQL Database Service, aka MDS uses the snapshot technology to backup your data.

I will explain how it works in the multiple part blog series. In part 1, we will deal with taking snapshots as backup. In part 2, we will see how to restore data and for which usage.

Snapshots

The Oracle Cloud Infrastructure Block Volume service provides you with the capability to group together multiple volumes in a volume group.

This is exactly what MDS uses to store the data.

We can easily see this from some global variables:

+-----------------------------+--------------------------------+ | Variable_name | Value | +-----------------------------+--------------------------------+ | datadir | /db/data/ | | innodb_data_home_dir | /db/data/ | | innodb_log_group_home_dir …

Recently, Oracle added a Bastion Service to OCI. And you may also have noticed that the OCI Dashboard offers you the possibility to use a browser based terminal: Cloud Shell.

Today, we will see how we can use these two components to connect from the browser to a MDS DB System.

We need the MySQL DB System’s IP:

So in this example, the MDS Instance we want to connect to has 10.0.0.99 as IP.

Bastion Service

Now we will create a new Bastion Service that will allow us to create a SSH Tunnel to our MySQL DB System.

The Bastion Service’s dashboard is located in Identity & Security:

If this is the first time you create a Bastion, the list will …

This is the first episode of “Discovering MySQL Database Service“, a series of tutorials where I will show you, step by step, how to use MySQL Database Service and some other Oracle Cloud Infrastructure services.

Like any series, in this episode I’m going to give you some context and set up the characters.

The post Discovering MySQL Database Service – Episode 1 – Introduction first appeared on dasini.net - Diary of a MySQL expert.

The MySQL Ecosystem has been using InnoDB as the default transactional engine for many years now. If you are one of the few still using MyISAM, it is time you also converted and benefited from InnoDB.

If you plan to upgrade to MySQL 8.0, you have several options to deal with those MyISAM tables.

Please note that you should not use MyISAM tables. MyISAM is not ACID compliant and can lead to data loss. Also MyISAM only supports full table lock and no row locking.

As you may recall, in 5.7, MyISAM has MYD, MYI, FRM files. In 8.0, the FRM is replaced with SDI (Serialized Dictionnary Information).  Lets review multiple ways to migrate those MyISAM tables to 8.0:

Migration Options

There are multiple solutions to migrate the MyISAM data to 8.0:

1. In-place upgrade (just …

There is a number of powerful MySQL storage engines at our disposal, and InnoDB is undoubtedly one of the most popular ones. It is highly reliable and efficient, so it is no wonder that it has become a default storage engine for all MySQL versions from 5.5 on. Let us take a look at its […]

The post What Is InnoDB in MySQL? Tutorial with Examples and Performance Tuning Tips appeared first on Devart Blog.

MySQL Shell is the popular tool to work with MySQL and it integrates perfectly everything for MySQL Database Service (MDS) in Oracle Cloud Infrastructure (OCI).

For any logical dump and load of data and especially to dump data to MDS, MySQL Shell Utility is the recommended solution.

MySQL Shell Dump & Load is faster, is parallel and compatible with OCI (block storage, MDS grants, automatic primary key creations, ...)

This post is about compression.

By default, MySQL Shell Dump uses zstd compression.

Zstd, short for Zstandard, is a fast lossless compression algorithm, targeting real-time compression scenarios at zlib-level compression ratio.

It's possible to specify the compression algorithm to use for MySQL Shell Dump Utility with the compression option.

The accepted …

On July 20th, 2021, we’ve celebrated the release of MySQL NDB Cluster 8.0.26. MySQL NDB Cluster (or NDB for short) is part of the MySQL family of open-source products providing an in-memory, distributed, shared-nothing, high-availability storage engine usable on its own or with MySQL servers as front-ends. For the complete changeset see release notes. Download it here.

Choosing a database can be an overwhelming task, requiring to consider performance (throughput and latency), high availability, data volume, scalability, ease of use/operations, etc. These considerations are affected by where the database runs — whether that is in a cloud provider such as …