Hi all,
I hope I've chosen a suitable list for this post. If not, please feel free
to redirect me! :)
By day, I am a SQL Server (and .NET) programmer. By night, my current
project (a space-based trading/strategy game to be delivered on the web,
should anyone be interested in contacting me off-list) is being constructed
in PHP (primarily - some light javascript is bound to work its way in, and
there are plans for a java applet chat client to be integrated into the
pages), with a MySQL 5.0 back-end.
I'm currently prototyping, and trying out a few things which I wish to
implement in the long run - hence why I'm using MySQL 5, to try it out (and
because I want to house data-related logic IN the database itself - so
Stored Procedures are a must).
In-between lamenting the lack of views, one of the things I most miss from
SQL Server, and which I need, is the Job System. For those unfamiliar with
the concept from SQL Server, it is a way to set up one-shot or scheduled
tasks to run within the database - these execute SQL statements when run,
and can be started manually, from a procedure call, or from a schedule.
My current prototype involves creating a small schema, with associated
stored procedures, and a PHP script which runs a simple loop, detecting
which jobs are cached for execution and then, based on the job-code, loading
an XML definition file, creating and executing the required SQL statements.
For the most part these will be parameterized Stored Procedures - the 'cache
data' will dictate the parameters to be passed in.
A future implementation (if the project ever reaches fruition and opens to
the public) will likely be based in VB or Java (since those are the two
application languages I am most comfortable with -- most likely Java, as
then I can run it on both Linux and Windows) and will be dual-mode - running
either as a monitoring console, or an 'authoritative instance' which
actually provides the loop and executes the queries.
To the point. My question: Has anyone out there attempted (or seen
attempted) such a thing for MySQL?
The need has arisen from the fact that I will need to run a number of
regular maintenance jobs (such as a map-expansion routine, and various
statistical updates) as well as some ad-hoc processes which I would prefer
to handle outside of page requests (these would be 'one shot' jobs).
I'm really fishing for comments and suggestions as to this implementation -
particularly if there are any fatal flaws in my theory, or if it has already
been done - Wheel reinvention is not one of my favourite pastimes!!
Many thanks,
Matt.
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