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Ranko Mosic

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Top Stories by Ranko Mosic

Big Data and its most prominent technical ingredient, Machine Learning, are all the rage these days, as IT industry is trying to convince companies technology revolution is underway. ( "If you are not doing it, your competitors sure are, and by the time you realize it, it will be too late" ). Data fracking, i.e. Big Data, is 21 century new oil of that will power and grease stalled industries and reignite growth, or so the story goes. While advanced analytics (it comes under various names - predictive analytics, data mining, and data science, more recently) is great and in use for decades now, we are well reminded that it is just - analytics. As such, it is a natural next step beyond straightforward SQL queries, but falls short of being anything near revolutionary. We are well advised to listen to the words of Larry Ellison (on IT industry in general and cloud in part... (more)

Mainstream Business Applications and In-Memory Databases

(Please refer to the following article: Oracle 12c In-Memory, Columnar Database & How It Relates to SAP Hana for update on IMDB/Columnar databases) Contemporary large servers are routinely configured with 2TB of RAM. It is thus possible to fit an entire average size OLTP database in memory directly accessible by CPU. There is a long history of academic research on how to best utilize relatively abundant computer memory. This research is becoming increasingly relevant as databases serving business applications are heading towards memory centric design and implementation. If you si... (more)

Column Store, In-Memory, MPP Databases and Oracle

( For latest information on Oracle 12c database update please refer to the following article: Oracle 12c Database and How It Relates to SAP Hana ) RDBMSs are stable and mature products. While there is nothing radically new on horizon that would challenge Codd's relational theory and related advances in data processing there are some developments that force established vendors like Oracle to come up with new features and products. Column Stores and Oracle Column store concept has been around for quite a while. Vendors like HP Vertica grabbed some market share in data warehousing seg... (more)

Deploying Oracle Databases to Amazon AWS (EC2, RDS)

Amazon recently added Oracle database hosting capabilities to its RDS service offering. You can rent an Oracle database related infrastructure in a pay-as-you-go fashion now. We are going to explore if corporations should be utilizing Amazon AWS Oracle Database related services (EC2, RDS ), how it should be used, where possible savings and potential trouble points are. With services like Amazon AWS it doesn't matter where your hardware and software physically is - it could be in a room next to you or in some other country. It is much easier and cheaper to procure and get new serv... (more)

How to Move Your Oracle Databases to Amazon EC2 Cloud

Amazon Web Services EC2 Cloud is full scale public data center offering services that are in many aspects far ahead of ancient practices present in regular IT environments. Fast provisioning and virtually unlimited scale make old fashioned server procurement and installations look like what they are - past century's practices. This article will not deal with usual objections to cloud computing revolving around change management difficulties ( how to incorporate new environment into the existing IT infrastructure ), security, reliability, performance etc. since we think that all t... (more)