Answer
A default value is automatically applied when no explicit value is provided during INSERT.
Quick Answer
A default value is used when no value is provided for a column during INSERT. Define with: age INTEGER DEFAULT 18. Common defaults: DEFAULT NOW() for timestamps, DEFAULT TRUE for boolean flags, DEFAULT gen_random_uuid() for UUID PKs, DEFAULT CURRENT_USER for audit fields. Defaults can be expressions or function calls. DEFAULT is applied column by column during INSERT.
S
SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
Want to bookmark, take notes, or join discussions?
Sign in to access all features and personalize your learning experience.
Source: SugharaIQ