dasini.net – Diary of a MySQL expert

MySQL, the world’s most popular open source database, is available as a managed cloud service in Oracle Cloud Infrastructure (OCI) under the name of MySQL Database Service (MDS).

This is the fifth 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 this episode, we’ll see how these data can now easily be imported into a MySQL Database Service instance.

This is the fourth 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 created our Virtual Cloud Network, that provides you with complete control over your cloud networking environment that we will create in this Discovering MySQL Database Service journey.

In this episode, we’ll see what is OCI Object Storage and how to export data to it from a MySQL instance using MySQL Shell.
In fact, in the process of creating a MySQL DB system, this step is optional. But it is especially useful if you want to create a MDS instance with data from a MySQL server on premise or in any public/private cloud.

This is the third 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 created our compartment, the foundation stone, of the architecture that we will build during this Discovering MySQL Database Service journey.

In this episode, we’ll see what is a Virtual Cloud Network (VCN) and how to create one and use it.

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.

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.

If you have (too) long running select queries it is probably because of lack of relevant indexes, problematic schema that lead to poor queries or inadequate hardware.

That said, sometime even if you doing it right, the query execution time could be too long regarding of what the application or your users expect. It is often true for reporting, real time analytics or BI queries.

At Oracle we have developed Heatwave, that allow you to easily run high performance analytics against your MySQL database.

To be more precise, Heatwave is a massively-scalable integrated analytics engine for MySQL Database Service (MDS), the MySQL DBaaS in Oracle Cloud Infrastructure (OCI).

Some key points of Heatwave:

– Single MySQL database for OLTP & analytics applications
– All existing applications work without any changes
– Extreme performance:
+ 400x faster than MySQL, scales to thousands of cores
+ 1100x faster than Amazon
Aurora
+ 2.7x faster than Amazon Redshift

Since MySQL 8.0.22 there is a mechanism in asynchronous replication that makes the receiver automatically try to re-establish an asynchronous replication connection to another sender, in case the current connection gets interrupted due to the failure of the current sender.

Dual-password capability makes it possible to seamlessly perform credential changes without downtime.

DBA can configure user accounts such that too many consecutive login failures cause temporary account locking.

MySQL 8.0 has introduced an optional behavior that authorize users to change their password only if they could provide the current password.