Sunday, 10 February 2013

AN INTRODUCTION TO DATABASE SYSTEMS



AN INTRODUCTION TO DATABASE SYSTEMS

Storing data in an organized way
Duplication of data avoided.
Indexing for fast retrievals or access.
Normalization

Normalization
It is the process removing duplication by splitting tables into different parts.
Difference between i) on site and ii) Off site
i) People working at Client location are called Onsite.
ii) People working in company and giving support for client is called offsite. 

Data center is the server room, where all the data of the company will be stored.
  
SAP is DATA BASE Independent (Oracle, DB2, MSSQL server, SAPDB (MAXDB) and Sybase. Informix is available for older versions (Obsolete)

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