Learning NoSQL


The emergence of twitter, facebook, Groupon, amazon, etc ... is becoming increasingly popular new forms of large data storage and fast access to them. The terms NoSQL , Big Data , Hadoop ... are rapidly becoming popular.

Not long ago we talked about it:


- Comparison of NoSQL Databases ( Cassandra , MongoDB , CouchDB , Redis , Riak and HBase ) 
- Infographics, the potential for big data . 
- Pentaho also is accelerating much its integration with Big Data.


Today we give you some more detailed presentations, where we can research:  

Statistical Data Warehouse - European Central Bank


European Central Bank StatisticsI found very interesting the initiative of the European Central Bank, to provide a statistical service on-line in the so-called Statistical Data Warehouse (SDW).

This Data Warehouse is aimed at a broad spectrum of users (financial analysts, journalists, businesses, economists, researchers, etc. ..). Provides macroeconomic data on-line in the euro zone: inflation, exchange rates, labor costs, unemployment, productivity, public deficit, public debt, payments balance, international investment position, sociodemographic data, tax information, etc...

Aspects to evaluate the selection of an ETL tool


Addressing a business intelligence project is important to proper assessment of the ETL tool that we will use. The tool based on which we will implement our procurement processes of the Datamart, Datawarehouse or storage structure based on which further exploit the data. It is a cornerstone for the design, construction and subsequent evolution of our BI system. We will analyze technical issues only, without entering into the economic aspects or otherwise (licenses, agreements, technical support, tool changes, etc. ..) . Note that the ETL processes, are closely linked to the processes of data profiling and data quality, here we will not consider.

Make charts quickly with SAS (SAS module / BASE)


We continuously meet with the need for rankings, get the top ten or top N of our customers get by product, geographic region, etc ...

Obviously there are thousands of ways and tools to get it. Enclosed below is a quick way to do if you are member of SAS, specifically SAS / BASE and you have already in SAS data set and want to avoid having to pass these data to other modules or reporting tools.

Oracle BI Publisher


We show a summary of capabilities of this tool integrated in the Oracle BI suite including the features included in version 11g.

Real Time Data Integration - CDC


There is an ever greater need in the Business Intelligence environment to have the information in the shortest time possible, data generation cycles getting shorter and updating of data in near real time. There is talk of 'Operational Business Intelligence (OBI)' and 'Real Time Decision Support'.

It is critical to reaching operational data analytic environments in shortest possible time. There is a need for a 'Real Time Data Integration'.

In the optimization of these data integration processes, we must consider both the usual source data (ERP's, CRM's, operating systems, databases, flat files, Excel, XML, etc. ..) and other from more immediate nature such as messaging queues and on-line information accessed via Web services or RSS.

HP makes a formal complaint to Oracle for Itanium case


In mid March of this year, Oracle announced that will stop developing products for Itanium processor platforms. Noted that other manufacturers were already doing it (Red Hat and Microsoft), and referenced conversations with Intel to justify its decision..


SQL08: Create a conditioned table using the data dictionary of SQL Server


Sometimes we need to check the existence of a table in a script or scheduled task to record error logs, first executions etc ... 

Let us take an example, a package of integration services that normally distribute or run there where we go and that leaves traces in a custom table that is not the default for loading logs. We could always include a performance task or sql script, run right or wrong, as the first to run on the package and then continue. Being purists this just is not quite careful

Translation of terminology Oracle - DB2 LUW


With 9.7 DB2 LUW version, IBM makes a nod to all Oracle DBAs, much more numerous in the DB2 market.

For this reason, 9.7 version has introduced Oracle compatibility modes that let you perform tasks in DB2 with the ease and knowledge that all Oracle DBAs have. However, it is important to know the terminology's translation between Oracle and DB2 if you intend to get into the DB2 world.

In this first article, I relate a number of items from which this introduction is simple and can be read DB2 documentation easily, including general terminology, updates, utilities, and views.


Encrypted Tablespaces in Oracle 11g


Since the release 1 of Oracle 11g, Oracle provides the ability to encrypt tablespaces in full, to protect sensitive data inside and accessible from the OS. That is, the objective of this new functionality is not to protect sensitive data of users of the database, but to protect the information of the tablespace datafiles.


To explain the usefulness of this feature, it is best to explain situations in which our data without this functionality would be vulnerable. For example, in the case file of a physical backup of a database tablespace were to wrong hands, could see some data "clear" without problems. For example, a single edition of tablespace (or a simple "cat") containing the Employees table, we show clear varchar2 fields can extract sensitive data (you do not believe, try it!).

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