The previous version, MySQL 4.1, instead, will be retired completely. It has ended its extended period. As such, it will be removed from the download page, and also from the download archives. Next year, if you want …

The previous version, MySQL 4.1, instead, will be retired completely. It has ended its extended period. As such, it will be removed from the download page, and also from the download archives. Next year, if you want …

One of the many cool new features in Java EE 6, is support for the DataSourceDefinition annotation.

The DataSourceDefinition annotation provides a way to define a DataSource and register it with JNDI. The annotation provided annotation elements for the commonly used DataSource properties. Additional standard and vendor specific properties may also be specified.

So let us look at an example:

@DataSourceDefinition(name = "java:global/MyApp/myDS",

className = "org.apache.derby.jdbc.ClientDataSource",

portNumber = 1527,

serverName = "localhost",

databaseName = "testDB",

user = "lance",

password = "secret",

properties = {"createDatabase=create"}) )

The data source will be registered using the value specified in the name element and can be defined in any valid Java EE name space and that will determine the accessibility of the data …

One of the many cool new features in Java EE 6, is support for the DataSourceDefinition annotation.

The DataSourceDefinition annotation provides a way to define a DataSource and register it with JNDI. The annotation provided annotation elements for the commonly used DataSource properties. Additional standard and vendor specific properties may also be specified.

So let us look at an example:

@DataSourceDefinition(name = "java:global/MyApp/myDS",
className = "org.apache.derby.jdbc.ClientDataSource",
portNumber = 1527,
serverName = "localhost",
databaseName = "testDB",
user = "lance",
password = "secret",
properties = {"createDatabase=create"}) )

The data source will be registered using the value specified in the name element and can be defined in any valid Java EE name space and that will determine the accessibility of the data source from other …

One of the many cool new features in Java EE 6, is support for the DataSourceDefinition annotation.

The DataSourceDefinition annotation provides a way to define a DataSource and register it with JNDI. The annotation provided annotation elements for the commonly used DataSource properties. Additional standard and vendor specific properties may also be specified.

So let us look at an example:

@DataSourceDefinition(name = "java:global/MyApp/myDS",

className = "org.apache.derby.jdbc.ClientDataSource",

portNumber = 1527,

serverName = "localhost",

databaseName = "testDB",

user = "lance",

password = "secret",

properties = {"createDatabase=create"}) )

The data source will be registered using the value specified in the name element and can be defined in any valid Java EE name space and that will determine the accessibility of the data …

O’Reilly’s official website announces that they are planning a MySQL conference in 2010 (same time, same place). Unlike past years, it isn’t co-presented with Sun/MySQL; they are flying solo. The theme is Information Unleashed.

For those of you that attended today’s webinar or for those of you who were unable to do so, we discussed and demo’ed many of the new exciting features in Workbench 5.2.

The presentation slides in pdf and audio are available –

http://www.mysql.com/news-and-events/on-demand-webinars/display-od-472.html

If you are currently using MySQL Query Browser or MySQL Administrator, you’ll be pleased to know that their functionality is now in MySQL Workbench, creating a single, unified GUI for designing, developing and administering MySQL databases.

For more info visit:

• WB Downloads: http://dev.mysql.com/downloads/workbench/
• WB Forums: …

I’ve previously talked about table metadata in Drizzle and how we use the table protobuf message to describe a table (see Drizzle FRM Replacement and others). The model in Drizzle is that the engine is responsible for its metadata. For schemas (you may be thinking ‘database’ but we’re moving to the Schema terminology in Drizzle) we also have a small amount of metadata.

The protobuf message is specified in drizzled/message/schema.proto and is incredibly short. In fact, here it is in its entirety:

Today, I twittered with Matthew Aslett from 451 group and pointed him to "Project Peter" which lead to a blog post by him (see tweet).

There's an interesting statement in his blog entry:

[...] on the theory that Oracle will not invest in the ongoing development of MySQL, which is something it has publicly committed to doing.

He links to an ad by Oracle. Come …

Peter took a look at Redis some time ago; and now, with the impending 1.2 release and a slew of new features, I thought it time to look again.

One of the more interesting features in 1.2 is the ability to operate in "append-only file persistence mode", meaning Redis has graduated from a semi-persistent to a fully-persistent system! Using the redis-benchmark script included, I ran the following command

./redis-benchmark

in five modes:

1 - In-Memory
I set "save 900000000 900000000" so nothing would be written to disk during the tests.
2 - Semi-Persistent
I set "save 1 1" so that changes would be flushed to disk every second (assuming there was at least one change the previous second).
…