{ "format": "dataset-manifest/1", "slug": "iot-sample-database", "version": 1, "seed": "flagship:iot-sample-database:1k", "engine": 2, "engineVersion": "1.0.0", "spec": { "format": "dataset/1", "engine": 2, "slug": "iot-sample-database", "name": "IoT sample database", "tagline": "Organizations, sites, devices and sensors, a year of telemetry, device health, alarms, firmware rollouts and gateways.", "description": "An IoT platform for twenty organizations through 2025: each runs sites with devices, and each device carries sensors that report temperature, humidity, pressure, CO2 or power. Every reading sits in its sensor type’s physical range and unit -- a temperature between -10 and 45 °C, CO2 between 400 and 2000 ppm. Organizations never mix: a device is only grouped, gatewayed, networked or fenced with things of its own organization, and only that organization’s users maintain it or raise its tickets. A firmware rollout installs a release for the device’s own type, after it was released; an alarm is resolved after it was raised or not yet; a ticket’s replies come after it.", "domain": "iot", "shape": "time-series", "useCases": [ "sql-practice", "analytics-demo", "test-fixtures" ], "keywords": [ "iot", "telemetry", "sensors", "time series", "sample database" ], "locale": "en_US", "license": "CC0-1.0", "version": 1, "seed": "flagship:iot-sample-database", "tables": { "actuator_commands": { "description": "Rows for the actuator_commands table.", "rows": 10, "columns": { "id": { "kind": "pk" }, "actuator_id": { "kind": "fk", "ref": "actuators.id", "skew": "flat" }, "command": { "kind": "enum", "values": [ "on", "off", "toggle", "set_level" ], "weights": [ 35, 35, 10, 20 ] }, "sent_at": { "kind": "datetime", "from": "2025-01-01", "to": "2025-12-31" }, "status": { "kind": "enum", "values": [ "acknowledged", "failed", "timed_out" ], "weights": [ 94, 3, 3 ] } } }, "actuators": { "description": "Rows for the actuators table.", "rows": 10, "columns": { "id": { "kind": "pk" }, "device_id": { "kind": "fk", "ref": "devices.id", "skew": "flat" }, "name": { "kind": "pattern", "pattern": "[relay-]xxxx" }, "type": { "kind": "enum", "values": [ "relay", "valve", "fan", "heater" ] } } }, "alarm_rules": { "description": "Rows for the alarm_rules table.", "rows": 10, "columns": { "id": { "kind": "pk" }, "condition_type": { "kind": "enum", "values": [ "above", "below" ], "weights": [ 80, 20 ] }, "sensor_id": { "kind": "fk", "ref": "sensors.id", "unique": true }, "severity": { "kind": "enum", "values": [ "low", "medium", "high" ], "weights": [ 40, 40, 20 ] }, "threshold_value": { "kind": "decimal", "min": 0, "max": 2556, "scale": 2 } } }, "alarms": { "description": "Rows for the alarms table.", "rows": 10, "columns": { "id": { "kind": "pk" }, "device_id": { "kind": "fk", "ref": "devices.id", "skew": "long-tail" }, "message": { "kind": "enum", "values": [ "Temperature above threshold", "Humidity above threshold", "Device offline", "CO2 above threshold", "Power spike" ] }, "resolved_at": { "kind": "datetime", "from": "2025-01-01", "to": "2025-12-31", "nullable": true, "nullRate": 0.06 }, "severity": { "kind": "enum", "values": [ "low", "medium", "high" ], "weights": [ 50, 35, 15 ] }, "triggered_at": { "kind": "datetime", "from": "2025-01-01", "to": "2025-12-31" } } }, "api_keys": { "description": "Rows for the api_keys table.", "rows": 60, "columns": { "id": { "kind": "pk" }, "expires_at": { "kind": "datetime", "from": "2026-01-01", "to": "2027-12-31" }, "key_hash": { "kind": "pattern", "pattern": "[sk_live_]xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx", "unique": true }, "user_id": { "kind": "fk", "ref": "users.id", "skew": "flat" } } }, "audit_logs": { "description": "Rows for the audit_logs table.", "rows": 10, "columns": { "id": { "kind": "pk" }, "action": { "kind": "enum", "values": [ "login", "update_device", "create_rule", "delete_rule", "invite_user" ], "weights": [ 50, 25, 10, 5, 10 ] }, "performed_at": { "kind": "datetime", "from": "2025-01-01", "to": "2025-12-31", "dayProfile": "business" }, "target": { "kind": "enum", "values": [ "device", "alarm_rule", "user", "session" ] }, "user_id": { "kind": "fk", "ref": "users.id", "skew": "long-tail" } } }, "billing_plans": { "description": "Rows for the billing_plans table.", "rows": 4, "columns": { "id": { "kind": "pk" }, "device_limit": { "kind": "int", "min": 25, "max": 10000 }, "name": { "kind": "enum", "values": [ "Starter", "Growth", "Business", "Enterprise" ], "unique": true }, "price": { "kind": "decimal", "min": 49, "max": 4999, "scale": 2 } } }, "device_configurations": { "description": "Rows for the device_configurations table.", "rows": 10, "columns": { "id": { "kind": "pk" }, "config_key": { "kind": "enum", "values": [ "report_interval_s", "tx_power", "sleep_mode", "timezone" ] }, "config_value": { "kind": "enum", "values": [ "60", "300", "high", "low", "enabled", "UTC" ] }, "device_id": { "kind": "fk", "ref": "devices.id", "skew": "flat" }, "updated_at": { "kind": "datetime", "from": "2025-01-01", "to": "2025-12-31" } } }, "device_geofences": { "description": "Rows for the device_geofences table.", "rows": 10, "columns": { "id": { "kind": "pk" }, "device_id": { "kind": "fk", "ref": "devices.id", "skew": "flat" }, "geofence_id": { "kind": "fk", "ref": "geofences.id" } } }, "device_group_members": { "description": "Rows for the device_group_members table.", "rows": 10, "columns": { "id": { "kind": "pk" }, "device_group_id": { "kind": "fk", "ref": "device_groups.id" }, "device_id": { "kind": "fk", "ref": "devices.id", "unique": true } } }, "device_groups": { "description": "Rows for the device_groups table.", "rows": 60, "columns": { "id": { "kind": "pk" }, "description": { "kind": "enum", "values": [ "By location", "By function", "Trial devices" ] }, "name": { "kind": "enum", "values": [ "Floor 1", "Floor 2", "Freezers", "North field", "Production line", "Pilot" ] }, "organization_id": { "kind": "fk", "ref": "organizations.id", "skew": "flat" } } }, "device_metrics": { "description": "Rows for the device_metrics table.", "rows": 50, "columns": { "id": { "kind": "pk" }, "cpu_usage": { "kind": "decimal", "min": 1, "max": 100, "scale": 1, "distribution": "long-tail" }, "device_id": { "kind": "fk", "ref": "devices.id", "skew": "flat" }, "disk_usage": { "kind": "decimal", "min": 5, "max": 98, "scale": 1 }, "memory_usage": { "kind": "decimal", "min": 10, "max": 95, "scale": 1, "distribution": "normal" }, "recorded_at": { "kind": "datetime", "from": "2025-01-01", "to": "2025-12-31" } } }, "device_types": { "description": "Rows for the device_types table.", "rows": 10, "columns": { "id": { "kind": "pk" }, "description": { "kind": "enum", "values": [ "Battery powered", "Mains powered", "PoE powered" ] }, "manufacturer": { "kind": "company.name" }, "model": { "kind": "pattern", "pattern": "AA-###", "unique": true }, "name": { "kind": "enum", "values": [ "Environmental sensor", "Smart meter", "Thermostat", "Air quality monitor", "Asset tracker", "Industrial controller", "Cold chain logger", "Smart plug", "Flow meter", "Vibration sensor" ], "unique": true } } }, "devices": { "description": "Rows for the devices table.", "rows": 10, "columns": { "id": { "kind": "pk" }, "device_type_id": { "kind": "fk", "ref": "device_types.id", "skew": "long-tail" }, "ip_address": { "kind": "pattern", "pattern": "[10.]#[.]#[.]##" }, "location_id": { "kind": "fk", "ref": "locations.id", "skew": "flat" }, "mac_address": { "kind": "internet.mac" }, "name": { "kind": "pattern", "pattern": "[dev-]xxxxxx", "unique": true }, "serial_number": { "kind": "pattern", "pattern": "[SN]##########", "unique": true }, "status": { "kind": "enum", "values": [ "online", "offline", "decommissioned" ], "weights": [ 88, 9, 3 ] } } }, "error_logs": { "description": "Rows for the error_logs table.", "rows": 10, "columns": { "id": { "kind": "pk" }, "device_id": { "kind": "fk", "ref": "devices.id", "skew": "long-tail" }, "error_code": { "kind": "enum", "values": [ "1001", "1002", "2001", "3004", "4040", "5003" ], "weights": [ 30, 20, 15, 15, 10, 10 ], "type": "integer" }, "logged_at": { "kind": "datetime", "from": "2025-01-01", "to": "2025-12-31" }, "message": { "kind": "enum", "values": [ "Sensor read timeout", "Battery low", "Connection lost", "Checksum mismatch", "Endpoint not found", "Watchdog reset" ] } } }, "firmware_deployments": { "description": "Rows for the firmware_deployments table.", "rows": 10, "columns": { "id": { "kind": "pk" }, "deployed_at": { "kind": "datetime", "from": "2025-01-01", "to": "2025-12-31" }, "device_id": { "kind": "fk", "ref": "devices.id", "skew": "flat" }, "firmware_release_id": { "kind": "fk", "ref": "firmware_releases.id" }, "status": { "kind": "enum", "values": [ "succeeded", "failed", "rolled_back" ], "weights": [ 92, 5, 3 ] } } }, "firmware_releases": { "description": "Rows for the firmware_releases table.", "rows": 40, "columns": { "id": { "kind": "pk" }, "device_type_id": { "kind": "fk", "ref": "device_types.id", "skew": "flat" }, "file_url": { "kind": "pattern", "pattern": "[https://firmware.example.com/]xxxxxxxxxxxx[.bin]" }, "released_at": { "kind": "datetime", "from": "2024-01-01", "to": "2025-11-30", "dayProfile": "business" }, "version": { "kind": "pattern", "pattern": "#.#.##" } } }, "gateway_devices": { "description": "Rows for the gateway_devices table.", "rows": 10, "columns": { "id": { "kind": "pk" }, "device_id": { "kind": "fk", "ref": "devices.id", "unique": true }, "gateway_id": { "kind": "fk", "ref": "gateways.id" } } }, "gateways": { "description": "Rows for the gateways table.", "rows": 80, "columns": { "id": { "kind": "pk" }, "ip_address": { "kind": "pattern", "pattern": "[10.]#[.]#[.]1" }, "name": { "kind": "pattern", "pattern": "[gw-]xxxx" }, "organization_id": { "kind": "fk", "ref": "organizations.id", "skew": "flat" }, "status": { "kind": "enum", "values": [ "online", "offline" ], "weights": [ 95, 5 ] } } }, "geofences": { "description": "Rows for the geofences table.", "rows": 40, "columns": { "id": { "kind": "pk" }, "geometry_data": { "kind": "constant", "value": "POLYGON((...))" }, "name": { "kind": "enum", "values": [ "Site perimeter", "Loading dock", "Yard", "Cold room", "Parking" ] }, "organization_id": { "kind": "fk", "ref": "organizations.id", "skew": "flat" } } }, "locations": { "description": "Rows for the locations table.", "rows": 10, "columns": { "id": { "kind": "pk" }, "address": { "kind": "location.streetAddress" }, "latitude": { "kind": "decimal", "min": 25.5, "max": 48.5, "scale": 6 }, "longitude": { "kind": "decimal", "min": -123, "max": -71, "scale": 6 }, "name": { "kind": "enum", "values": [ "Plant", "Warehouse", "Head office", "Cold store", "Greenhouse", "Substation", "Store" ] }, "organization_id": { "kind": "fk", "ref": "organizations.id", "skew": "flat" } } }, "maintenance_logs": { "description": "Rows for the maintenance_logs table.", "rows": 10, "columns": { "id": { "kind": "pk" }, "cost": { "kind": "decimal", "min": 0, "max": 600, "scale": 2, "distribution": "long-tail" }, "description": { "kind": "enum", "values": [ "Battery replaced", "Recalibrated", "Antenna repositioned", "Enclosure cleaned", "Sensor swapped" ] }, "device_id": { "kind": "fk", "ref": "devices.id", "skew": "flat" }, "performed_at": { "kind": "datetime", "from": "2025-01-01", "to": "2025-12-31", "dayProfile": "business" }, "user_id": { "kind": "fk", "ref": "users.id" } } }, "network_connections": { "description": "Rows for the network_connections table.", "rows": 10, "columns": { "id": { "kind": "pk" }, "connected_at": { "kind": "datetime", "from": "2025-01-01", "to": "2025-12-31" }, "device_id": { "kind": "fk", "ref": "devices.id", "skew": "flat" }, "network_id": { "kind": "fk", "ref": "networks.id" }, "signal_strength": { "kind": "int", "min": -110, "max": -40, "distribution": "normal" } } }, "networks": { "description": "Rows for the networks table.", "rows": 60, "columns": { "id": { "kind": "pk" }, "name": { "kind": "pattern", "pattern": "[net-]xxxx" }, "organization_id": { "kind": "fk", "ref": "organizations.id", "skew": "flat" }, "password": { "kind": "constant", "value": "********", "description": "Masked; the platform never stores it in clear." }, "ssid": { "kind": "pattern", "pattern": "[IOT-]AAAA" }, "type": { "kind": "enum", "values": [ "wifi", "lte", "lorawan", "ethernet" ], "weights": [ 40, 25, 20, 15 ] } } }, "notifications": { "description": "Rows for the notifications table.", "rows": 10, "columns": { "id": { "kind": "pk" }, "message": { "kind": "enum", "values": [ "An alarm was raised", "A device went offline", "Firmware update completed", "Your report is ready" ] }, "read_status": { "kind": "enum", "values": [ "read", "unread" ], "weights": [ 75, 25 ] }, "sent_at": { "kind": "datetime", "from": "2025-01-01", "to": "2025-12-31" }, "user_id": { "kind": "fk", "ref": "users.id", "skew": "long-tail" } } }, "organizations": { "description": "Rows for the organizations table.", "rows": 20, "columns": { "id": { "kind": "pk" }, "description": { "kind": "enum", "values": [ "Manufacturing", "Cold chain logistics", "Smart buildings", "Agriculture", "Utilities", "Retail" ] }, "name": { "kind": "company.name", "unique": true } } }, "roles": { "description": "Rows for the roles table.", "rows": 4, "columns": { "id": { "kind": "pk" }, "description": { "kind": "enum", "values": [ "Owns the account", "Manages devices and users", "Operates devices", "Read only" ] }, "name": { "kind": "enum", "values": [ "owner", "admin", "operator", "viewer" ], "unique": true } } }, "sensors": { "description": "Rows for the sensors table.", "rows": 10, "columns": { "id": { "kind": "pk" }, "device_id": { "kind": "fk", "ref": "devices.id", "skew": "flat" }, "name": { "kind": "pattern", "pattern": "[sensor-]xxxx" }, "type": { "kind": "enum", "values": [ "temperature", "humidity", "pressure", "co2", "power" ], "weights": [ 35, 25, 10, 15, 15 ] }, "unit": { "kind": "enum", "values": [ "C", "%RH", "hPa", "ppm", "W" ] } } }, "subscriptions": { "description": "Rows for the subscriptions table.", "rows": 20, "columns": { "id": { "kind": "pk" }, "billing_plan_id": { "kind": "fk", "ref": "billing_plans.id", "weights": [ 20, 40, 30, 10 ] }, "end_date": { "kind": "date", "from": "2026-01-01", "to": "2026-12-31" }, "organization_id": { "kind": "fk", "ref": "organizations.id", "unique": true }, "start_date": { "kind": "date", "from": "2022-01-01", "to": "2024-12-31" } } }, "support_tickets": { "description": "Rows for the support_tickets table.", "rows": 10, "columns": { "id": { "kind": "pk" }, "created_at": { "kind": "datetime", "from": "2025-01-01", "to": "2025-12-15", "dayProfile": "business" }, "organization_id": { "kind": "fk", "ref": "organizations.id", "skew": "long-tail" }, "status": { "kind": "enum", "values": [ "resolved", "closed" ], "weights": [ 75, 25 ] }, "subject": { "kind": "enum", "values": [ "Device not reporting", "Billing question", "Add more users", "Firmware failed", "API rate limit" ] }, "user_id": { "kind": "fk", "ref": "users.id" } } }, "telemetry_data": { "description": "Rows for the telemetry_data table.", "rows": 1000, "columns": { "id": { "kind": "pk" }, "recorded_at": { "kind": "datetime", "from": "2025-01-01", "to": "2025-12-31" }, "sensor_id": { "kind": "fk", "ref": "sensors.id", "skew": "flat" }, "value": { "kind": "decimal", "min": -5, "max": 2700, "scale": 2, "distribution": "normal" } } }, "ticket_replies": { "description": "Rows for the ticket_replies table.", "rows": 10, "columns": { "id": { "kind": "pk" }, "created_at": { "kind": "datetime", "from": "2025-01-01", "to": "2025-12-31" }, "message": { "kind": "enum", "values": [ "Looking into it", "Fixed, please confirm", "Thanks, all good", "Can you send logs?" ] }, "ticket_id": { "kind": "fk", "ref": "support_tickets.id", "skew": "flat" }, "user_id": { "kind": 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and answer its tickets", "violations": 0 }, { "name": "A rollout installs a release for the device's own type, one to thirty days after it was released", "violations": 0 }, { "name": "An alarm is resolved five minutes to two days after it was raised, or not yet; a reply follows its ticket", "violations": 0 }, { "name": "Every site has a device and every device a sensor; a device has one gateway and joins a group once", "violations": 0 } ] } }, "rules": [ { "name": "Every reading lies in its sensor type's range, and the sensor's unit is its type's", "sql": "SELECT count(*) AS violations FROM telemetry_data t JOIN sensors s ON s.id = t.sensor_id WHERE (s.type = 'temperature' AND (t.value < -10 OR t.value > 45 OR s.unit <> 'C')) OR (s.type = 'humidity' AND (t.value < 15 OR t.value > 95 OR s.unit <> '%RH')) OR (s.type = 'pressure' AND (t.value < 960 OR t.value > 1040 OR s.unit <> 'hPa')) OR (s.type = 'co2' AND (t.value < 400 OR t.value > 2000 OR s.unit <> 'ppm')) OR (s.type = 'power' AND (t.value < 0 OR t.value > 3000 OR s.unit <> 'W'))" }, { "name": "Every sensor has one alarm rule, its threshold in the sensor's range", "sql": "SELECT (SELECT count(*) FROM sensors s LEFT JOIN alarm_rules r ON r.sensor_id = s.id WHERE r.id IS NULL) + (SELECT count(*) - count(DISTINCT sensor_id) FROM alarm_rules) + (SELECT count(*) FROM alarm_rules r JOIN sensors s ON s.id = r.sensor_id WHERE (s.type = 'temperature' AND (r.threshold_value < -10 OR r.threshold_value > 45)) OR (s.type = 'humidity' AND (r.threshold_value < 15 OR r.threshold_value > 95)) OR (s.type = 'pressure' AND (r.threshold_value < 960 OR r.threshold_value > 1040)) OR (s.type = 'co2' AND (r.threshold_value < 400 OR r.threshold_value > 2000)) OR (s.type = 'power' AND (r.threshold_value < 0 OR r.threshold_value > 3000))) AS violations" }, { "name": "Organizations never mix: a device is grouped, gatewayed, networked and fenced only with its own organization's", "sql": "SELECT (SELECT count(*) FROM device_group_members m JOIN devices d ON d.id = m.device_id JOIN locations l ON l.id = d.location_id JOIN device_groups g ON g.id = m.device_group_id WHERE g.organization_id <> l.organization_id) + (SELECT count(*) FROM gateway_devices x JOIN devices d ON d.id = x.device_id JOIN locations l ON l.id = d.location_id JOIN gateways g ON g.id = x.gateway_id WHERE g.organization_id <> l.organization_id) + (SELECT count(*) FROM network_connections x JOIN devices d ON d.id = x.device_id JOIN locations l ON l.id = d.location_id JOIN networks n ON n.id = x.network_id WHERE n.organization_id <> l.organization_id) + (SELECT count(*) FROM device_geofences x JOIN devices d ON d.id = x.device_id JOIN locations l ON l.id = d.location_id JOIN geofences g ON g.id = x.geofence_id WHERE g.organization_id <> l.organization_id) AS violations" }, { "name": "Only an organization's own users maintain its devices and answer its tickets", "sql": "SELECT (SELECT count(*) FROM maintenance_logs m JOIN devices d ON d.id = m.device_id JOIN locations l ON l.id = d.location_id JOIN users u ON u.id = m.user_id WHERE u.organization_id <> l.organization_id) + (SELECT count(*) FROM support_tickets t JOIN users u ON u.id = t.user_id WHERE u.organization_id <> t.organization_id) + (SELECT count(*) FROM ticket_replies r JOIN support_tickets t ON t.id = r.ticket_id JOIN users u ON u.id = r.user_id WHERE u.organization_id <> t.organization_id) AS violations" }, { "name": "A rollout installs a release for the device's own type, one to thirty days after it was released", "sql": "SELECT count(*) AS violations FROM firmware_deployments fd JOIN devices d ON d.id = fd.device_id JOIN firmware_releases fr ON fr.id = fd.firmware_release_id WHERE fr.device_type_id <> d.device_type_id OR fd.deployed_at < fr.released_at + interval '1 day' OR fd.deployed_at > fr.released_at + interval '30 days'" }, { "name": "An alarm is resolved five minutes to two days after it was raised, or not yet; a reply follows its ticket", "sql": "SELECT (SELECT count(*) FROM alarms WHERE resolved_at < triggered_at + interval '5 minutes' OR resolved_at > triggered_at + interval '2 days 5 minutes') + (SELECT count(*) FROM ticket_replies r JOIN support_tickets t ON t.id = r.ticket_id WHERE r.created_at <= t.created_at) AS violations" }, { "name": "Every site has a device and every device a sensor; a device has one gateway and joins a group once", "sql": "SELECT (SELECT count(*) FROM locations l LEFT JOIN devices d ON d.location_id = l.id WHERE d.id IS NULL) + (SELECT count(*) FROM devices d LEFT JOIN sensors s ON s.device_id = d.id WHERE s.id IS NULL) + (SELECT count(*) - count(DISTINCT device_id) FROM gateway_devices) + (SELECT count(*) - count(DISTINCT (device_group_id, device_id)) FROM device_group_members) AS violations" } ] }, "publishedAt": 1791379166770, "updatedAt": 1791379166770 }