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I have a personal bias to stay away from self-proclaimed OLAP tools.
Developers and architects tend to forget or just plain ignore long term
data plans, so tools and contractors are installed to "fix" the long term
data issues. I find this is a common mentality among people who are doing
operations on the cheap and haven't researched how this was solved in the
past with job automation systems, or mainframes. Which is a shame.*

I would prefer to promote a healthy data life cycle. I still think the best
ETL tools, is perl!

You can achieve OLAP/DWH results with MySQL and MariaDB, you just have to
roll your own data lifecycle. CONNECT and multi-source replication
certainly help with this (multiple and/or foreign data sources).

>From dual have a nicely formatted piece, on creating Materialised Views:


* Autosys anyone?

On 9 July 2013 13:26, Roberto Spadim <roberto@xxxxxxxxxxxxx> wrote:

> Hi Rich, i just see some guys using OLAP, i don't have a full understand
> of what's OLAP
> I think we can do with sql, but i don't know how guys use it, they talk
> about linq (.net functions), mdx and cubes, check this:
> http://en.wikipedia.org/wiki/Online_analytical_processing
> http://en.wikipedia.org/wiki/OLAP_cube
> http://en.wikipedia.org/wiki/Comparison_of_OLAP_Servers
> I saw guys using with sql server and oracle servers, but i really don't
> know how usefull they are
> In a high level i think that's a tool that run over sql layer, something
> that tcp is over ip protocol, they have cubes (views), measures (columns)
> and dimensions (rows). i think that each cube is a sql query (? maybe i'm
> wrong) and measures are columns, and dimensions are rows, something like
> versions of these measures, or maybe view this as a cube, something like
> X/Y/Z axis
> well i don't really know what this could do, they tell that's for
> datamining and get more information about data, i didn't see something like
> this (datamining) in mysql/mariadb, that's why i asked
> i take a look many times ago about column database, that's a nice tool but
> i don't think it's something that guys see as OLAP solution, column
> database have a really nice use and can optimize many things
> well any information is welcome, i will search more about it, maybe it's a
> easy tool to implement (maybe not) but if it's usefull we could give a try
> thanks Rich

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