To know how to setup Oracle 10g Database
Oracltawy blog is interested in Oracle developer topics (Sql, Pl/sql, Oracle Forms,Oracle Report, Oracle Application Server)
2010/12/12
What is Program-Data Independence?
Techniques that allow data to be changed without affecting the applications that process it. There are two kinds of data independence. The first type is data independence for data, which is accomplished in a database management system (DBMS). It allows the database to be structurally changed without affecting most existing programs. Programs access data in a DBMS by field and are concerned with only the data fields they use, not the format of the complete record. Thus, when the record layout is updated (fields added, deleted or changed in size), the only programs that must be changed are those that use those new fields.
Reference: http://www.answers.com/topic/dataindependence#ixzz164riqgP2
Reference: http://www.answers.com/topic/dataindependence#ixzz164riqgP2
2010/12/11
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