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There are many nice changes included in the MySQL 8.0.12 release that were published a couple of days ago. One of the most exciting is the ability to make instant schema changes to tables. This blog will look into why I think that that is a stand-out change.

I will not go into details with the implementation other than noting that the new data dictionary in MySQL 8.0 has allowed for a nice implementation of the patch that was contributed by the Tencent Games DBA Team. If you are interested in learning more about the implementation, I will recommend you to read the blog by Bin Su ( …

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MySQL supports a long list of character sets, and one of the strong points are that you can use different character sets per column. This is very flexible, but which character set should you use?

If you do not want to read the whole blog the summary is: Use utf8mb4, particularly in MySQL 8.0 with one of the UCA 9.0.0 based collations.

Before I reach this conclusion, let’s start out looking at what a character set is.

What is a Character Set?

Characters are wonderful things that can take all kinds of shapes ranging from the familiar (for English speakers at least) Latin characters as those used to write this blog, over Arabic (مرحبا بالعالم) and Asian characters such as simplified Chinese …

Dear MySQL users,

MySQL Shell 8.0.12 is a maintenance release of MySQL Shell 8.0 Series
(a component of the MySQL Server). The MySQL Shell is provided under
Oracle’s dual-license.

MySQL Shell 8.0 is highly recommended for use with MySQL Server 8.0 and 5.7.
Please upgrade to MySQL Shell 8.0.12.

MySQL Shell is an interactive JavaScript, Python and SQL console
interface, supporting development and administration for the MySQL
Server. It provides APIs implemented in JavaScript and Python that
enable you to work with MySQL InnoDB cluster and use MySQL as a document
store.

The AdminAPI enables you to work with MySQL InnoDB cluster, providing
an integrated solution for high availability and scalability using
InnoDB based MySQL databases, without requiring advanced MySQL
expertise. For more information about how to configure and work with …

Dear MySQL users,

MySQL Connector/Node.js is a new Node.js driver for use with the X
DevAPI. This release, v8.0.12, is a maintenance release of the
MySQL Connector/Node.js 8.0 series.

The X DevAPI enables application developers to write code that combines
the strengths of the relational and document models using a modern,
NoSQL-like syntax that does not assume previous experience writing
traditional SQL.

MySQL Connector/Node.js can be downloaded through npm (see
https://www.npmjs.com/package/@mysql/xdevapi for details) or from
https://dev.mysql.com/downloads/connector/nodejs/.

To learn more about how to write applications using the X DevAPI, see
http://dev.mysql.com/doc/x-devapi-userguide/en/. For more information
about how the X DevAPI is implemented in MySQL Connector/Node.js, and
its usage, see …

Dear MySQL users,

MySQL Connector/NET 8.0.12 is the second general availability release of
MySQL Connector/NET to add support for the new X DevAPI. The X DevAPI
enables application developers to write code that combines the strengths
of the relational and document models using a modern, NoSQL-like syntax
that does not assume previous experience writing traditional SQL.

To learn more about how to write applications using the X DevAPI, see
http://dev.mysql.com/doc/x-devapi-userguide/en/index.html. For more information about how the X DevAPI is implemented in Connector/NET, see
http://dev.mysql.com/doc/dev/connector-net.

NuGet packages provide functionality at a project level. To get the
full set of features …

Dear MySQL users,

MySQL Connector/J Version 8.0.12 is the second GA release of the 8.0 branch of MySQL Connector/J. It is suitable for use with MySQL Server versions 5.5, 5.6, 5.7, and 8.0. It supports the Java Database Connectivity
(JDBC) 4.2 API, and implements the X DevAPI.

This release includes the following new features and changes, also described in more detail on https://dev.mysql.com/doc/relnotes/connector-j/8.0/en/news-8-0-12.html As always, we recommend that you check the “CHANGES” file in the download archive to be aware of changes in behavior that might affect your application.

To download MySQL Connector/J 8.0.12 GA, see the “Generally Available (GA)
Releases” tab at http://dev.mysql.com/downloads/connector/j/ …

Dear MySQL users,

MySQL Connector/Python 8.0.12 is the second GA release version of the
MySQL Connector Python 8.0 series. This series adds support for the new
X DevAPI. The X DevAPI enables application developers to write code
that combines the strengths of the relational and document models using
a modern, NoSQL-like syntax that does not assume previous experience
writing traditional SQL.

To learn more about how to write applications using the X DevAPI, see
http://dev.mysql.com/doc/x-devapi-userguide/en/. For more information
about how the X DevAPI is implemented in MySQL Connector/Python, and its
usage, see http://dev.mysql.com/doc/dev/connector-python.

Please note that the X DevAPI requires MySQL Server …

The MySQL Development team is very happy to announce that MySQL 8.0.12, the first 8.0 Maintenance Release, is now available for download at dev.mysql.com. In addition to bug fixes there are a few new features added in this release, most notably the InnoDB instant add column feature. …

Dear MySQL users,

The MySQL developer tools team announces 8.0.12 as our first general
availability (GA) for MySQL Workbench 8.0.

For the full list of changes in this revision, visit
http://dev.mysql.com/doc/relnotes/workbench/en/changes-8-0.html

For discussion, join the MySQL Workbench Forums:
http://forums.mysql.com/index.php?152

The release is now available in source and binary form for a number of
platforms from our download pages at:

http://dev.mysql.com/downloads/tools/workbench/

Enjoy!

Dear MySQL users,

MySQL Connector/C++ 8.0.12 is the second GA release version of the MySQL Connector/C++ 8.0 series.

Connector/C++ 8.0 can be used to access MySQL implementing Document Store or in a traditional way, using SQL queries. It allows writing both C++ and plain C applications using X DevAPI and X DevAPI for C. It also supports the legacy API of Connector/C++ 1.1 based on JDBC4.

To learn more about how to write applications using X DevAPI, see “X DevAPI User Guide”

https://dev.mysql.com/doc/x-devapi-userguide/en/

See also “X DevAPI Reference” at

https://dev.mysql.com/doc/dev/connector-cpp/devapi_ref.html

and “X DevAPI for C Reference” at

…