Monthly Archives: September 2014

OLTP vs OLAP

Posted on September 24, 2014 by UNIX Admin

We can divide IT systems into transactional (OLTP) and analytical (OLAP). In general we can assume that OLTP systems provide source data to data warehouses, whereas OLAP systems help to analyze it.

OLAP

Posted on September 24, 2014 by UNIX Admin

OLAP (online analytical processing): is computer processing that enables a user to easily and selectively extract and view data from different points of view. For example, a user can request that data be analyzed to display a spreadsheet showing all … Continue reading →

oltp

Posted on September 24, 2014 by UNIX Admin

OLTP ( Online transaction processing) : is a class of information systems that facilitate and manage transaction-oriented applications, typically for data entry and retrieval transaction processing.

LVM

Posted on September 20, 2014 by UNIX Admin

LVM :- Logical Volume Manager and it’s a disk Management for Linux/UNIX Systems.

CDR

Posted on September 20, 2014 by UNIX Admin

-The CDR (Call Details Record and also knows as Call Data Record) is a data record produced by a telephone exchange or other telecommunications equipment that contains attributes that are specific to a single instance of a phone call or … Continue reading →