Answer
MongoDB is schema-flexible but supports validation using $jsonSchema. This allows flexible documents while enforcing structure for critical fields.
Quick Answer
MongoDB supports schema flexibility by default but lets you add validation via JSON Schema rules on a collection. You specify required fields, field types, value ranges, and patterns. Validation happens on insert and update. Use validationAction: "warn" during migration (logs violations without rejecting) or "error" to enforce strictly. This balances flexibility with data integrity.
S
SugharaIQ Editorial Team
Verified Answer
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Source: SugharaIQ