5. Compare and contrast various data structures Flashcards
(10 cards)
Structured Data
Structured data organizes information into categories like title, author, and publication date for easy storage and retrieval in databases.
Non-structured Data
Non-structured data lacks order/pattern.
Semi-structured Data
Semi-structured data is a mix between organized and unorganized data, does not fit neatly into tables, but contains common features.
Schema
The architecture of how a database is structured and organized
Rows/Records
They collect information about only one entity
Field
Vertical columns and horizontal rows-
can be a type of vehicle, a specific piece of art, a single park in a national parks system, or an individual person.
Primary Key
A unique identifier for each record
Foreign Key
A primary key from another table
Constraints
Constraints, like the NOT NULL constraint, ensure data integrity by setting rules for data entry.
Key/value databases