# Trigger-based CDC Patterns

## Learning Cards

1. [What is Trigger Based CDC?](/content/learn/change-data-capture/trigger-based-cdc/what-is-trigger-based-cdc/index.html)  
   - Easy  
   - 2 min read

2. [How Trigger Based CDC Works at Scale](/content/learn/change-data-capture/trigger-based-cdc/how-trigger-based-cdc-works-at-scale/index.html)  
   - Medium  
   - 3 min read

3. [Production Reality: Overhead and Scale Limits](/content/learn/change-data-capture/trigger-based-cdc/production-reality-overhead-and-scale-limits/index.html)  
   - Medium  
   - 3 min read

4. [Trigger Based vs Log Based CDC: Decision Framework](/content/learn/change-data-capture/trigger-based-cdc/trigger-based-vs-log-based-cdc-decision-framework/index.html)  
   - Hard  
   - 3 min read

5. [Failure Modes and Edge Cases](/content/learn/change-data-capture/trigger-based-cdc/failure-modes-and-edge-cases/index.html)  
   - Hard  
   - 3 min read