MySQL 8.0 and the Document Store highlight brand new client tools such as the Shell and Connector/Node.js, both providing a JavaScript implementation of the X DevAPI. Although, for most cases, the public interface tends to be similar on both (barring some small details), there is one notable exception.

The way you handle result sets in a Node.js app using Connector/Node.js is a bit different from the way you do it using an interactive session or a non-interactive JS script in the Shell.

Executing an operation in the MySQL server …

Dear MySQL users,
MySQL Connector/Net 6.9.3 is the first GA release for the 6.9.x series of the .NET driver for MySQL. It can be used for production environments.
It is appropriate for use with MySQL server versions 5.5-5.7.
It is now available in source and binary form from http://dev.mysql.com/downloads/connector/net/#downloadsandmirrorsites (note that not all mirror sites may be up to date at this point-if you can't find this version on some mirror, please try again later or choose another download site.)
Enjoy and thanks for the support!
On behalf of the MySQL Connector/NET and the MySQL/ORACLE RE Team.

Dear MySQL users,

MySQL Connector/Net 6.9.2 a new version of the all-managed .NET driver for MySQL has been released. This is a RC release for 6.9.x and is not recommended for production environments.

It is appropriate for use with MySQL server versions 5.5-5.7.

It is now available in source and binary form fromhttp://dev.mysql.com/downloads/connector/net/#downloadsandmirrorsites

(note that not all mirror sites may be up to date at this point-if you can't find this version on some mirror, please try again later or choose another download site.)

Enjoy and thanks for the support!

On behalf of the MySQL Connector/NET and the MySQL/ORACLE RE Team.

Dear MySQL users,
MySQL Connector/Net 6.9.1 a new version of the all-managed .NET driver for MySQL has been released. This is a beta release for 6.9.x and is not recommended for production environments.
It is appropriate for use with MySQL server versions 5.5-5.7.
It is now available in source and binary form from http://dev.mysql.com/downloads/connector/net/#downloadsandmirrorsites (note that not all mirror sites may be up to date at this point-if you can't find this version on some mirror, please try again later or choose another download site.)
Enjoy and thanks for the support!
On behalf of the MySQL Connector/NET and the MySQL/ORACLE RE Team. 

I talk with lot of people who are really interested in Percona XtraDB Cluster (PXC) and mostly they are interested in PXC as a high-availability solution.  But, what they tend not to think too much about is if moving from async to synchronous replication is right for their application or not.

Facts about Galera replication

There’s a lot of different facts about Galera that come into play here, and it isn’t always obvious how they will affect your database workload.  For example:

• Transaction commit takes approximately the worst packet round trip time (RTT) between any two nodes in your cluster.
• Transaction apply on slave nodes is still asynchronous from client commit (except on the original node where the transaction is committed)
• Galera prevents writing conflicts to these pending transactions …

I think most developers are able to cache database queries by now. But what about DML queries? Every query, connection - or in the general case - ressource needs time. So I thought a lot about how to write data as efficiently as possible into the database - in my case MySQL. Hmm...We have to take a closer look at the details and we can't choose the same asynchronously writing method for every kind of query. With kind of query I mean that it depends on what storage engine we use, the complexity of the query, should more than one record be written at once, are triggers involved and so on. Sure, the one or the other query MUST be written instantly, but most of the writing querys are stackable with no need to check if the request has succeed.

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