Data+ DA0-002

Flashcards for Mike Chapple's CompTIA Data+ (DA0-002) Cert Prep

Data

Raw facts that our systems and processes generate and collect

Information

Data that has been processed, analyzed, and put into context

Column

Each _____ in a table is a field and contains information about a single characteristic

Row

Each _____ in a table is a record and contains information about a single instance of the table subject

Key/Value Pairs

Creates a simple way to store data values indexed by a key value

Key/Value stores

Databases that provide efficient storage and fast retrieval of key/value pairs

Name and Describe 3 types of Numerical Data

1) Integer data - whole numbers that don’t have a decimal

2) Decimal values - contain decimal places and are used for exact values

3) Floating point values - have decimals but use less storage and store approximate values