Influxdb select time

InfluxQL is designed for working with time series data and includes features specifically for working with time.

This page documents an earlier version of InfluxDB. InfluxDB v2 is the latest stable version. See the equivalent InfluxDB v2 documentation: Query fields and tags. See the Sample Data page to download the data and follow along with the example queries in the sections below. Use this syntax to differentiate between field keys and tag keys that have the same name. Other supported features: Arithmetic operations , Functions , Basic cast operations , Regular expressions. For more information, see error about mixing aggregate and non-aggregate queries.

Influxdb select time

Hello Nibeckj , Welcome. You can create variables for those times and use the flux date package. Anaisdg : Can you please give another hint how to combine create-variable and the date-packages? Nibeckj : Did you find a solution to your problem. For Nibeckj original use case, the query would look something like:. Thanks a lot for the quick help! Such an easy solution. Just for notice: For my final solution I combined it with a union so that I can get a result set which spans over midnight the day before until the current day. Perhaps there is a smarter solution but for me it is working. If you know the dates and time that the time changes, you could conditionally set variables:. Is there any possibility to do these queries on a specific time range and day with the python client? They both work separately, but not together. Solution to my own question: The above works in the latest version 2.

Thanks, that is an adequate workaround for this case. By default, influxdb select time, InfluxDB assumes that all epoch timestamps are in nanoseconds. If N is greater than the number of points in a measurement, InfluxDB returns all points from that series.

To use with InfluxDB, cast the return value to a timestamp. The following example uses the sample data set provided in Get started with InfluxDB tutorial. To use with InfluxDB, cast the return value to a string. The following example uses the sample data set provided in the Get started with InfluxDB tutorial. Calculates time intervals and returns the start of the interval nearest to the specified timestamp. If no rows exist in a time interval, a new row is inserted with a time value set to the interval start time, all columns in the GROUP BY clause populated, and null values in aggregate columns. The following examples use the sample data set provided in the Get started with InfluxDB tutorial.

InfluxQL is designed for working with time series data and includes features specifically for working with time. You can review the following ways to work with time and timestamps in your InfluxQL queries:. If you are using the InfluxQL shell , use the precision helper command precision rfc to view results in human readable format. Specify alternative formats with the epoch query string parameter. Other supported features include: Absolute time Relative time. The RFC date-time string requires single quotes.

Influxdb select time

Returns the current system time UTC. Windows use preset round-number boundaries based on the specified interval that are independent of time conditions in the WHERE clause. Downsample data into time-based intervals. The following example uses the Bitcoin price sample dataset. Thank you for being part of our community!

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This example is a continuation of the scenario outlined in Common Issues with Basic Syntax. Maarten September 22, , pm The following example uses the sample data set provided in the Get started with InfluxDB tutorial. The start time of the time range is on September 18, Was this page helpful? Hello, I want to query influx for times series with : Start time at 08h00 end time at -and for a range day : Monday to Friday Is there a way to do it? Specify alternative formats with the epoch query string parameter. We had to create a dataset with less regular data to work with fill linear. Next, InfluxDB performs the main query and calculates the average of those differences. In Grafana, I want to compare the now value to the most recent value from a sensor to see if the values are stale or current.

A time series database TSDB is specifically made for data that can be evaluated as a "time-series," which includes sensor outputs, market trends, CPU utilization, and application performance metrics.

Flux is going into maintenance mode and will not be supported in InfluxDB 3. As another example, I recently wrote a bunch of points to a database with an accidental unwanted column. By default, the CLI returns the timestamps that use the epoch format and the timestamps are measured in nanoseconds. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Queries with unquoted or double quoted tag values or string field values will not return any data and, in most cases, will not return an error. Such an easy solution. I'm still not quite convinced that being able to query time would be redundant with other functionality. Sign up for free to join this conversation on GitHub. Hi, I also trying to sum up data energy consumption between a time range using th hourSelection function. See Database management for how to manage databases and retention policies. Note that the whitespace between the - and 6m is required.