5. Compare and contrast various data structures Flashcards
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