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Average Sensor Readings
Compute baseline averages across all operational data: avg_air_temp, avg_process_temp, avg_rpm, avg_torque (each rounded to 2 decimals). Returns one row.
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Schema
operational_data
| udi | air_temp_k | process_temp_k | rotational_speed_rpm | torque_nm |
|---|---|---|---|---|
| 5640 | 302.6 | 312.1 | 1668 | 28.7 |
| 2171 | 299.4 | 309.1 | 1500 | 43.3 |
| 228 | 298.3 | 308.5 | 1539 | 36.1 |
Expected output: Single-row baseline
Hint
Concepts
SELECT Aggregation AVG
Practise the topic: SQL practice questions · GROUP BY exercises
Read the concept: SQL GROUP BY tutorial
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