Physical Database Design using java code

Question

Implement an Employee database file to store all employee information using

1. Dynamic External Hashing (either Extendible or Linear)
2. Ordered File

Hints:

• Use any small hash function and simulate your buckets as files rather using block address, since this address is low level.
• Suppose that the bucket can contain only 3 records
• Be careful to implement all file operations such as open, find, modify ….etc.
• Determine the type of information needed in the file header in order for your code to be general in each case