Issues - Data independence

The property of being able to change the logical or physical structure of data without requiring changes to the application programs that manipulate the data.

Examples

• Adding a new field to the database will not affect the programs
• Using SQL enables the data format to be adjusted independently of the SQL instruction.

Refer to database connectivity

[Rev 24/9/98] 30/4/97 © 1997-98 V/2-Com (Verhaart), P O Box 8415, Havelock North, New Zealand.