maria-developers team mailing list archive

[Roberto Spadim <roberto@xxxxxxxxxxxxx>]

about http://www.fromdual.ch/mysql-materialized-views, i think triggers
isn't "beautiful"
maybe we could implement this inside mariadb code (some time in future)?


2013/7/12 Roberto Spadim <roberto@xxxxxxxxxxxxx>

> the idea is run 'nonsql' queries on mysql, using the mdx language for
> example, maybe a plugin daemon could solve for now
> a second port (or a new command on mysql protocol) will execute 'create
> cube', 'create measure', 'create dimension', and execute the olap queries
> using these cubes, measures, dimensions
> it's not a tool, it's a new parser + new object types to mysql
> at mysql sql language we will have something like show cubes, show
> measure, show dimension, but we will not have the objects
> (cube,measure,dimension) on sql queries, example if i create a cube A, and
> i use a select * from A, i will select from table A, never from cube A
> i don't know how sql server use this, but i think it's something similar
> to this
>
>
> 2013/7/12 Richard Bensley <richardbensley@xxxxxxxxx>
>
>> 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:
>> http://www.fromdual.ch/mysql-materialized-views
>>
>> Rich
>>
>>
>>
>> * 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
>>>
>>
>>
>
>
> --
> Roberto Spadim
> SPAEmpresarial
>



-- 
Roberto Spadim
SPAEmpresarial