> ## 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.

# Instance Uptime, Oracle Database KPI card, Vortex IQ Nerve Centre

> SYSDATE - STARTUP_TIME from V$INSTANCE. Drop = unplanned restart / instance crash.

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

## At a glance

* **Category:** Executive Overview
* **Type:** Supporting Metrics
* **Chart:** kpi
* **Format:** number
* **Time window:** RT

## Calculation

SYSDATE - STARTUP\_TIME from V\$INSTANCE. Drop = unplanned restart / instance crash.

## Known limitations

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