Data is defined separately and not included in programs

Programs are not dependent on the physical attributes of data.

Programs are not dependent on the logical attributes of data

Both 1) Programs are not dependent on the physical attributes of data. and 2) Programs are not dependent on the logical attributes of data

Network Model

Hierarchical Model

Relational Model

None of these

Data Definition Language

Meta Language

Procedural query Language

None of the above

Primary key

Secondary Key

Foreign Key

None of these

Cartesian product

Difference

Intersection

Product