The latest from the MySQL community

If you tried to migrate live from Amazon RDS/Aurora or any other Cloud to OCI MySQL HeatWave before December 6, 2022, you may have encountered issues with Amazon to OCI asynchronous replication. See: Live Migration from Azure Database for MySQL to MySQL Database Service on OCI This is because Amazon (an other Cloud) writes to […]

How to use MySQL HeatWave Inbound replication channel filters.

In Managed Services, we have many customers, and as each has a different kind of config and environment, working on their environment is always fun and interesting. In this blog post, I will showcase an issue we faced when dropping a table and how it was resolved.

There was a ticket to drop a table in a client’s production environment (MySQL 5.7). The table had a # symbol at the beginning of the table’s name. I thought it was easy that we can use quotes or backtick symbols to specify the table to drop. But it did not work as I expected and I came to know why the customer created the ticket to drop the table.

The following example recreates the problem. It shows the table, but you are unable to see the structure and cannot drop it.

mysql> show tables;
+--------------------------+
| Tables_in_percona        |
+--------------------------+
| …

Let’s examine COMMIT latency on Aurora v2 (MySQL 5.7) vs. Aurora v3 (MySQL 8.0) vs. RDS MySQL 8.0 2-AZ vs. RDS MySQL 8.0 3-AZ “cluster”.

Let’s examine COMMIT latency on Aurora v2 (MySQL 5.7) vs. Aurora v3 (MySQL 8.0) vs. RDS MySQL 8.0 2-AZ vs. RDS MySQL 8.0 3-AZ “cluster”.

Let’s examine COMMIT latency on Aurora v2 (MySQL 5.7) vs. Aurora v3 (MySQL 8.0) vs. RDS MySQL 8.0 2-AZ vs. RDS MySQL 8.0 3-AZ “cluster”.

This text exists mainly so that I paste the URL into the #mysql channel in Libera IRC.

The mysqldump tools allows you to convert a MySQL database server or individual schemas back to SQL. You are left with a script that is supposed to be loadable into a target server and gives you back the full database, including all objects in it.

You can read that SQL as a script into an empty server to create a new instance, or process it with different tools for different purposes. So in general, a workflow can look like this:

$ mysqldump --options --more-options and parameters > somescript.sql
$ scp somescript.sql somewhere@else.com:
$ ssh somewhere@else.com
...
$ mysql --show-warnings --whatever-options < somescript.sql

Instead of mysql with an input redirect, you may also use the command line client and the source command:

$ mysql …

This text exists mainly so that I paste the URL into the #mysql channel in Libera IRC.

The mysqldump tools allows you to convert a MySQL database server or individual schemas back to SQL. You are left with a script that is supposed to be loadable into a target server and gives you back the full database, including all objects in it.

You can read that SQL as a script into an empty server to create a new instance, or process it with different tools for different purposes. So in general, a workflow can look like this:

$ mysqldump --options --more-options and parameters > somescript.sql
$ scp somescript.sql somewhere@else.com:
$ ssh somewhere@else.com
...
$ mysql --show-warnings --whatever-options < somescript.sql

Instead of mysql with an input redirect, you may also use the command line client and the source command:

$ mysql …

In MySQL, the ORDER BY clause is used to sort the records fetched by the SELECT statement, in ascending or descending order. And while the usage of this command is simple in basic cases, there are more complex scenarios requiring much more attention. This article will explore the essence, the syntax, and the usage scenarios […]

The post MySQL ORDER BY Clause: Syntax and 13 Examples appeared first on Devart Blog.

There are certain things in life that you can count on …

FOSDEM is back in town, and together with that a new pre-FOSDEM MySQL day, 2 days again this year!

And of course, we definitely have not forgotten … the MySQL Community dinner!

We continue the by now well known tradition of dining together in style with members from all over the community, and invite you to the ICAB venue (the same location as where the pre-FOSDEM MySQL days are being held.

Book your tickets now!!!

The listed ticket price includes a selection of Belgian Speciality …