> ## Documentation Index
> Fetch the complete documentation index at: https://docs.vortexiq.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Foreign-Key Violations, SQLite KPI card, Vortex IQ Nerve Centre

> Rows returned by PRAGMA foreign_key_check - orphaned child rows when foreign keys are enforced.

**[Nerve Centre KPIs](/nerve-centre/kpi-cards/sqlite) · [Audit Profile](/nerve-centre/kpi-cards/sqlite/audit) · [Sentiment Settings](/nerve-centre/kpi-cards/sqlite/sentiment)**

## At a glance

* **Category:** File Health
* **Type:** Supporting Metrics
* **Chart:** kpi
* **Format:** number
* **Time window:** RT/24h
* **Alert trigger:** >0

## Calculation

Rows returned by PRAGMA foreign\_key\_check - orphaned child rows when foreign keys are enforced.

## Known limitations

*Known limitations, FAQs, or reconciliation notes specific to this card. Replace this block when authored.*