What Is The Difference Between Logical Data Independence And Physical

1.	What Is The Difference Between Logical Data Independence And Physical Data Independence?
Answer» Logical Data Independence - MEANING IMMUNITY of EXTERNAL SCHEMAS to changed in conceptual SCHEMA. Physical Data Independence - meaning immunity of conceptual schema to changes in the internal schema. Logical Data Independence - meaning immunity of external schemas to changed in conceptual schema. Physical Data Independence - meaning immunity of conceptual schema to changes in the internal schema.

What Is The Difference Between Logical Data Independence And Physical Data Independence?

Answer»

Logical Data Independence - MEANING IMMUNITY of EXTERNAL SCHEMAS to changed in conceptual SCHEMA.

Physical Data Independence - meaning immunity of conceptual schema to changes in the internal schema.

Logical Data Independence - meaning immunity of external schemas to changed in conceptual schema.

Physical Data Independence - meaning immunity of conceptual schema to changes in the internal schema.