Learn MQL with Real Code Examples

Use indexes wisely for large collections

Avoid unnecessary $regex or $where queries

Project only required fields

Leverage aggregation pipelines efficiently

Enable authentication and role-based access

Use TLS/SSL for connections

Validate input to prevent NoSQL injection

Apply field-level access controls

MongoDB Atlas metrics

Query performance with explain()

Monitoring logs for slow queries

Integrate with Grafana/Prometheus

Use consistent field naming

Avoid unindexed queries on large collections

Modularize aggregation pipelines

Document queries and schema