All 7 RedisTimeSeries questions
More in RedisTimeSeries
What is RedisTimeSeries, and what kind of data is it specifically designed to handle? How do you configure automatic downsampling in RedisTimeSeries, where detailed recent data is aggregated into coarser summaries over time? How do you configure a retention period for a Redis time series so old data is automatically removed after a certain amount of time? What aggregation functions are available when querying a range of data from a Redis time series, and how do you apply one during a query? How would you design a monitoring system architecture using RedisTimeSeries that efficiently handles both high frequency raw data ingestion and long term historical trend analysis? How does RedisTimeSeries handle labels and how can you use them to query across multiple related time series at once?
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How do you add a new data point to a Redis time series, and how do you query a range of recent data?

Beginner

Answer

You use TS.ADD to add a new value with either a specific timestamp or an asterisk to automatically use the current time, and TS.RANGE to retrieve all data points falling within a specified time range, letting you easily query for something like all readings from the last hour.
TS.ADD temperature_sensor1 '*' 23.1
TS.RANGE temperature_sensor1 - +
Real-world example A weather monitoring dashboard adds new temperature readings as they arrive and queries the full range of recent readings using TS.RANGE to display a chart of temperature over time.

Common follow-ups: What do the minus and plus symbols represent in a TS.RANGE query?;Can you query a time series using a specific start and end timestamp instead?

Data Types;Sets & Sorted Sets in Redis
All 7 RedisTimeSeries questions