Terms

Question 1

Idempotent

Answer 1

Operations that can be applied multiple times without changing the result beyond the initial application.

Question 2

Cardinality

Answer 2

The number of unique values contained in a particular column, or field, of a database.

Question 3

Normalization

Answer 3

Removing duplicates or redundancy from tables (SQL way)

Question 4

Immutable

Answer 4

Which can be created or destroyed but can’t be changed or modified.