KEY TERMS

Access Method

B+−tree index

Clustering files

Collision

Cylinder

Data volatility

Data volume

Database performance

Denormalization

Derived data

Disk

Division-remainder method

File organization

Fixed disk drive

Hashing method

Head switching

Horizontal partitioning

Index

Logical view

Overflow records

Performance

Physical database design

Platter

Repeating groups

Response time

Rotational delay

Search attribute

Seek time

Subset tables

Text attribute

Throughput

Track

Transfer time

Vertical partitioning

View