Influxdb combine multiple queries
Influxdb combine multiple queries. org'; But may query is if the two measurement of same database with different name how can i join or how can i implement above query in my A query requires at least one field key in the SELECT clause to return data. Data exploration Mar 3, 2022 · Hello. The Flux sql package provides functions for working with SQL data sources. price for each time slice. 5 InfluxDB: 1. If the SELECT clause only includes a single tag key or several tag keys, the query returns an empty response. Note: When columns is set to an empty array, group() ungroups all data merges it into a single output table. The query has only a few filters and groupings. Execute queries. I get 2 fields output, Download and Upload. Each table is created depending on the grouping. The default query uses “mean” for all of them: Jan 19, 2022 · I am trying to use flux query language to find the sum of a column based on a person. My goal is to archive one table Oct 5, 2021 · Grafana v6. Query A: SELECT MAX(rx) AS packets FROM interface WHERE instance = 'bond0' and type = 'if_packets' AND time > now() - 24h GROUP BY host Query data with InfluxQL. So I have a measurement named prices, with a tag named ‘name’, and field named ‘price’. x /query compatibility endpoint to query data in InfluxDB Cloud and InfluxDB OSS 2. pivot() collects unique values stored vertically (column-wise) and aligns them horizontally (row-wise) into logical sets. Initial Measurement look like: time Current Apr 19, 2021 · Hello, I have this query for getting status of containers in a Podman pod: from(bucket:"testbucket") |> range(start: -5m) |> filter(fn:(r) => r. Measure query performance with Flux profilers. yield() delivers input data as a result of the query. To recalculate the _value column, use the with operator in map() to overwrite the existing _value column. I would like to transform these tables into one, added to the values of the “_value” field. count() returns the number of records in each input table. The aim is to obtain a global value for use in an ultimate calculation. map() iterates over and applies a function to input rows. Next add your second query to display the total Memory. The output schemas of union() is the union of all input schemas. As a function, all the storage pushdowns can continue beyond the function. So I want to find a query that merges these 2 buckets to get the current population of bees at any time. When using the influx query command to query and download large datasets, drop columns such as _start and _stop to optimize the download file size. Feel free to download the dataset provided in Sample Data and follow along with the documentation. I want to have the sum of all the tags. Default is []. Aug 16, 2021 · <figcaption> A screenshot of the Script Editor in the InfluxDB UI. Let’s assume again that each tank has a temperature controller with a setpoint value that is stored in InfluxDB. They are then all shown correctly in one graph, however, when I now press export as . Example. The query shown here is a basic example. Sorting by _time will actually only sort inside each table. If a login from query A is contained in query B, then it should be opposite in the table (as on the screenshot). Figure 4: InfluxDB query plan using sort merge algorithm Use multiple fields in a calculation. I was looking at continuous queries to do this, however I don’t want to downsample the data at all, I want to keep it raw. I can get the data out of my InfluxDB using the InfluxDB. Jan 2, 2006 · Where query_id is the query ID, displayed in the SHOW QUERIES output as qid. Each set of returned data needs to be named using the yield() function. I have a dashboard where the data type has changed at some point so, when I scroll back in time past that point the dashboard stops working. Using 2 buckets is mandatory in my use case. I'm having multiple series (same _field, different tag) of digital 0/1 state, and I want to sum them up. I'm keen not to lose years of history, so I'd like to rename all my historical records from TempSensor to the new name which is ESP_TempSensor (and thus merge the records) - there's no overlap as I Can’t combine query with multiple series I am trying to create a visualization for multiple parking sensors coming from The Things Network. Specifically, InfluxDB supports the PostgresQL wire protocol dialect of SQL. I want to pivot both results into a single table with columns names "today" and "tomorrow" but struggling to find a simple syntax without doing multiple queries with joins or creating dummy columns with labels. Left outer join. Discover how to query data in InfluxDB 2. When I try to visualize both queries in a single Grafana table, instead of getting three columns (host, used memory in GB, used memory in percentage), I get results from the second query appended below the results from the first query. Is it posible to obtain the results grouped by the values contained in devid? Jun 25, 2022 · schema. A query may have multiple yields, each identified by unique name specified in the name parameter. Finally, I want to display the last column this way: Any Sep 22, 2020 · Grafana: 7. I currently have three separate table panels in Grafana where the only difference between each query is the time range (Year, Month, Day). measurementTagValues can only return the values of a single tag at a time. I would like to run: select * from series group by work_id limit 1; Then take that data, and run Jul 24, 2019 · I have an influxDB testdb where, I am trying a SELECT query on 4 different measurements with different fieldtype. value from cpu_load as hosta inner join cpu_load as hostb where hosta. To keep empty tables in your data, set the following parameters for the following functions: Recalculate the _values column. Where X = cell number, all sixteen raw queries looks like this: SELECT mean(“value”… Sep 19, 2022 · btw, looks like you are using InfluxDB for traditional Purchase Order query. Jun 20, 2020 · The two APIs are quite different - Influx's is query language based, Graphite is not - and tagged InfluxDB data will need to be configured as a Graphite metric path via templates, see configuration examples. Nov 11, 2020 · I’m migrating my dashboard from InfluxDB 1. I can visualize the data in Grafana without any problem. In the following example, two queries return Time Series data. Core and InfluxDB. InfluxQL tutorial. Now I am writing an API on this data in C#. join() merges two streams of tables into a single output stream based on columns with equal values. Use this transformation to combine the results from multiple queries (combining on a passed join field or the first time column) into one result, and drop rows where a successful join cannot occur. However, since it's a Flux query, you can use the union function to combine multiple measurementTagValues results at a time. Common join. Operate on columns; Compare values from different buckets; Use multiple fields in a calculation; IoT common queries; Optimize queries; Parameterized queries; Process data. Using reduce Dec 12, 2022 · The above creates two query results named "today" and "tomorrow" time-shifted 24hrs apart. 1 using the InfluxDB UI. x, data is stored in databases and retention policies. Queries are named ‘A’ and ‘B’. In the FROM column, select the bucket to query. Sep 7, 2021 · I measure 2 populations of bees in 2 separate buckets (bucket A for bee A and bucket B for bee B). An aside: Using reduce() to return multiple aggregations simultaneously. 0 (or even TICKscript for Kapacitor) could be used for real-time processing of data for multiple measurements. from() lets you query SQL data sources like PostgreSQL, MySQL, Snowflake, SQLite, Microsoft SQL Server, Amazon Athena and Google BigQuery and use the results with InfluxDB dashboards, tasks, and other operations. FILTER() is applied to the all rows that match the query predicates so if you have lots of raw data, you would try to add a WHERE clause on the main query that would use Sep 22, 2023 · I have two Flux queries: one fetches the used memory in GB and the other fetches the used memory in percentage. Explicitly calling yield() is only necessary when including multiple queries in the same Flux query. There are multiple ways to query data from InfluxDB including the InfluxDB UI, CLI, and API. At present, you can run SQL queries directly in the Cloud UI on IOx-enabled buckets by wrapping those queries in Flux. Oct 27, 2022 · SQL capabilities in InfluxDB. Select query1/query2 from (Select mean(value) AS query2 from db where tag1 = 'mytag'), (select mean(value) AS query1 from db where tag1 = 'mytag' group by "tag2") group by time(5s) Use the Flux join package to join two data sets based on common values using the following join methods: Inner join. I am using 1. Hello. To query InfluxDB 2. influxdb. 1 (0c44a04) Hello and good evening! I am currently trying to combine two queries into one where Query 1: Shows the RAM USAGE for localhost:port Query 2: Given label name of which localhost:port and what I am trying to do is that I want to use the given label name that is in localhost:port in query 1. It’s time series bandwidth, uploads and downloads. Enter your influxDB url, organization, API token from the previous section, and Use InfluxQL (an SQL-like query language) to interact with InfluxDB, and query and analyze your times series data. csv file. All we need to understand is that you need to edit the last line with the to Jan 16, 2024 · InfluxDB, primarily known for its time series database capabilities, offers InfluxQL—a query language that resembles SQL. tables() only compares records with the same group key. More explicitly, what I have Apr 20, 2021 · How do I query the data using flux to combine those two rows? (With "start" and "stop" as tags/fields) I currently use the elapsed() -function to calculate the time difference/duration of my value Feb 9, 2022 · Hi All, Apologies in advance if this has already been answered, I’ve searched the forums and can’t find anything that aligns to what I’m attempting to do though (even though it seems really trivial on the face of it). Let’s continue from our previous example with InfluxDB and a SQL database, a common use case for combining data. In InfluxDB 1. The simples example would be to just add |> group() at the end and see that now you are getting just 1 table. Each r property represents a column key-value pair. csv, their tables are all listed as separate blocks beneath each other. To build and execute a Flux query with the query builder:. ) day, so I assume it will get the min/mean/max for all data. influxdb:influxdb-client-java:1. Is this possible? May 18, 2021 · Hello, I generated my first query using the InfluxDB panel. Output values must be of the following supported column types: May 16, 2022 · That said, without knowing the schema of slipstream_volttron (column types, indexes, etc. Output data. e. FILTER() is applied to the all rows that match the query predicates so if you have lots of raw data, you would try to add a WHERE clause on the main query that would use Sep 20, 2019 · Hi Scott, This si the python code that I’m using to insert the data in Influx. filter() performs operations similar to the SELECT statement and the WHERE clause in InfluxQL and other SQL-like query languages. Query with sample data; Query with Data Explorer; Query with the InfluxDB API; Query in the Flux REPL; Use the influx CLI; Common queries. Since the two rows are coming from different measurements I can have two separate streams, add a fake common column and then do the join. " Mar 26, 2020 · Hi, I was wondering if Flux for InfluxDB v2. Nov 18, 2020 · As you can see, the third column is called table and there is 0, 1, 2, etc. count() returns 0 for empty tables. I have a below measurement. Feb 2, 2021 · For example: energy_consumption_tarif_1 has a value of 60; energy_consumption_tarif_2 has a value of 40; I’d like to combine these two so it shows a total of 100. So let’s dive into how to combine data sets once you have them. How can I merge all the results into a single table sorted by _time and tags displayed as Nov 9, 2023 · I try to join two tables: currents and voltages Both are measured at the same time, with just some ms of delay. , 15m value, 24h value). join. Then, since the field names are the same, they need to be renamed. This section introduces InfluxQL, the InfluxDB SQL-like query language for working with data in InfluxDB databases. Query multiple fields, pivot results, and use multiple field values to calculate new values in query results. How can I do this using the data explorer, or flux? Thanks. If you are not familiar with it or need a refresher, the official docs are a great place to start. Common queries. Client namespaces from NuGet. 7, databases and retention policies have been combined and replaced by InfluxDB buckets. I’m receving a JSON message, opening it up and feeding the db so the time stamp is exactly the same. x data model, a bucket must be mapped to a database and retention policy (DBRP Jun 20, 2019 · I know this thread has been around for a while, but a lot of things have changed in Flux since. Right outer join. The underlying answer here is that you don't really need multiple queries to get results for multiple fields, just a more complex single query. 0. I managed to find this post which has the answer. I’m running 2 queries with the ‘mixed’ datasource hitting 2 influxdb with identical flux queries. I would like to combine these three tables into one, where the measurement’s value is separated into three columns (one for each time range). Query InfluxDB using the Flux Feb 3, 2017 · To combine aggregated measurements under different tags is a bit tricky. Dec 13, 2018 · In this blog, I share two examples of how to perform math across measurements: How to calculate the batch size of lines written to the database per request. Here's your example: Query builder. The group key of the resulting table is the same as the input tables, excluding columns found in the columnKey and valueColumn parameters. I am viewing the results through the Table mode and I realized that the query generated 5 different tables. Setup Dec 11, 2019 · Influxdb and Grafana combine multiple SELECT. Jul 25, 2019 · I have an influxDB testdb where, I am trying a SELECT query on 4 different measurements with different fieldtype. Data is in 2 different influxdb (2. When I try to merge their Columns using union, I get a lot of nulls. I have a measurement containing 4 fields: Electricity supplied T1 Electricity supplied T2 Electricity delivered T1 Electricity InfluxQL requires a database and retention policy (DBRP) combination in order to query data. Jul 18, 2023 · Example 5: how to create a dynamic (multidimensional) Grafana Alert using multiple queries and multiple thresholds with Flux. 11. How can I do this? Thanks. My code: http://localhost:8086/query?db=jpedrina&q=SELECT last(value) FROM “jpedrina Jan 11, 2022 · is it possible to sum two or more metrics with influxql (or may be with flux) rather than stacking graphs or executing an expressions on them ? For example - sum of two metrics: uplink and downlink traffic. 0 and use the Influx query syntax (as in the GUI). This is useful when using the average value to calculate a threshold check. The auxiliary query is B. e. Use the Flux join package to join two data sets based on common values using the following join methods: Inner join. Query data with InfluxQL. Array syntax; Reference values in an array; Operate on arrays; Array syntax. union() merges two or more input streams into a single output stream. Client. Finally you can manipulate them as needed. Sep 7, 2021 · Thanks, that’s what I was about to do. Query InfluxDB using the InfluxDB user interface (UI) Data Explorer. May 16, 2022 · That said, without knowing the schema of slipstream_volttron (column types, indexes, etc. Congratulations! You have now queried data from InfluxDB using Flux. 0 Querier contains a Query Optimizer. _measurement == "pod Jun 13, 2020 · They record exactly the same way into my InfluxDB (ie temperature and humidity every 15 mins), but the device names are different in the InfluxDB. Query with the InfluxDB API. I can set this query alone in a graph or combine multiple similar queries for different devices, but I am limited to previously identifying the devices to be controlled. Dec 31, 2021 · Grafana Data Source Config. For this tutorial, select the get-started bucket. Mar 11, 2017 · Hey guys, I’ve got a number of databases containing the same measurements (Think prod and dev) and along the way, data that was meant 1 db has ended up in the other, and so I need to merge them. All this datas have the exact same timestamp. I have heart rate data (_field: min, avg, max), and I want to aggregate them per day. So far, I have tried in the influx web interface, to select 5 values I want to be combined into one . This shows up on the graph with 2 Aug 30, 2020 · Change the query type form ‘Time series’ to ‘Table’ This is important for all the following queries. I’m also trying to use Flux and I’ve been trying to figure out how to create a field that contains the sum of other fields. x) instances. For the original query, I created that following Flux query that: Creates data() function to query the base data. Initially, in Oct 20, 2022 · InfluxDB subqueries increase the functionality of InfluxQL queries and deliver more granular, meaningful insights from your data. Aug 11, 2021 · I have a Influx db (V1. In InfluxDB 2. This collection of articles walks through common use cases for Flux queries. g. I am trying to achieve this through the panel editor in influxdb. List of columns to use in the grouping operation. Mar 31, 2022 · The best practice is to store your base query in a variable if that base query returns only a subset of data, which will be then further filtered for a subset of that base. Pass Flux queries to the command as either a file or via stdin. Jan 10, 2019 · As you can see, in this query I am setting the device id by hand. Jul 28, 2017 · I'm a beginner with influxDB and after reading the Schema design documentation a question remain. orb' and hostb. 0 Backend: influxdb OS: CentOS 6. For this final example let’s continue with our five fluid tanks and their five datasets. Aug 26, 2022 · Can you please tell me how to combine two tables into one? The main query is A. The key is to use sub-queries (InfluxDB 1. I am trying to get data from influxdb with multiple queries. If I have the following input table: How can I use a Flux Query to obtain the following output table: I have May 11, 2018 · Grafana: 5. Jun 27, 2023 · Build and execute an optimal query plan: Like many other databases, the InfluxDB 3. I have the below query mean() returns the average of non-null values in a specified column from each input table. </figcaption> Click the Query Builder button to return back to the Query Builder. Figure 4 shows a more accurate plan that sorts data of overlapped files, File 2 and File 3, together and deduplicates them before sending data to the sort and merge operators. The following query: Uses filter() to filter the average_temperature measurement. If you change the grouping at the end of your query you could merge these tables into 1. The following query returns no data because it specifies a single tag key (location) in the SELECT clause: Sep 27, 2021 · TL;DR InfluxDB Tech Tips – How to Interpret an Annotated CSV: This post describes how to interpret an Annotated CSV, the Flux query result format for InfluxDB. The resulting schema is the union of the input schemas. This is not optimized for large Time Series datasets. Setup > create database testdb > use testdb Using database testdb > insert rpm,path=P1 data=200 Yes indeed, my original suggestion will show the results for all of those fields on the same panel. 4 with InfluxQL. Top 5 Hurdles for Flux Beginners and Resources for Learning to Use Flux : This post describes common hurdles for Flux beginners and how to tackle them by using the InfluxDB UI Jun 3, 2020 · Hi, Assume that a sensor reports a value every second which is stored in a bucket with a retention policy of one day. Empty tables. The following Flux profilers are available: query: provides statistics about the execution of an entire Flux script. tables() joins two input streams together using a specified method, predicate, and a function to join two corresponding records, one from each input stream. 2+) to capture each tag's measurements separately. Make sure to select your query type as “Flux”, since we are using influxDB v2. node_memory_MemTotal_bytes{job="node-exporter"} Again set the output to ‘Table’ Transform Different Queries with an Outer Join Nov 18, 2021 · I am writing IoT Data to an InfluxDB. 7 with InfluxQL, the specified DBRP combination must be mapped to a bucket. Nov 11, 2019 · In my loop it happens that I write to the same db consecutively multiple times, like this: InfluxDB Query for Tag Values With a Specific Additional Tag. Then there is a continuous query accumulating that data in hour intervals and writing it to a second bucket with, for simplicity, an infinite retention policy. 2 days ago · Hello, My goal is as follows: To combine two queries (corresponding to consumption data that don’t occur at the same time of year (one consumes the whole year, the other only part of it)), into a single query by adding up the values so that, in grafana, you can use this query to recalculate an expression. Run a query from a file Aug 8, 2023 · I’m struggling to find a transformation to get the data I need. host = 'hosta. You are currently viewing documentation specific to InfluxDB Cloud powered by the TSM storage engine, which offers different functionality than InfluxDB Cloud Serverless powered by the v3 storage engine. 350626995Z h1 75 … HI. csv table. I would like to combine these three tables into one, where the measurement's value is separated into three columns (one for each time range). May 19, 2021 · I am new to influxdb2, and can’t seem to wrap my head around it yet. This might not be the best database for you as InfluxDB deals with the time-series data Sep 13, 2021 · InfluxDB queries are written using the Flux query language. sql. Use the InfluxDB 1. You can also use the reduce() function to return multiple aggregations simultaneously. Null values are not considered equal when comparing column values. More explicitly, what I have currently is: Table1 Columns: [Tag1+Tag2, _value] where I am trying to figure out if it's possible to run multiple select statements on influxdb data. The querier builds the best-suited query plan (aka optimal plan) that executes on the data from the cache and ingesters, and finishes in the least amount of time. Table structure Remove unnecessary columns in large datasets. but this works fine if we have different fields from the same measurement, but this does not work (for me) when adding values from different measurements. Try this: To use values from multiple fields in a mathematic calculation, complete the following steps: Filter by fields required in your calculation; Pivot fields into columns Query in Data Explorer. Mar 18, 2024 · Figure 3: Query plan using sort merge algorithm. I want to create a table, where columns show mean of different elapsed period (e. 8. Compare the value from the latest point to an average value stored in another bucket. I. Aug 13, 2021 · The default behavior of Flux is to return a table for each combination of tag values. Clicking the Submit button allows you to run the Flux query. Flux queries can be extended in many ways to form powerful scripts. How to decide if you should use one measurement with multiple fields or multiple measurement with single field ? I have multiple iot device which send every minute datas (temperature,humidity, pressure). Is there any way to have a single flux query that Guides that walk through both common and complex queries and use cases for Flux. The function counts both null and non-null records. TL;DR I'm using Influxdb v2. value + hostb. Mar 5, 2021 · I believe the group() function will merge all of your tables into one. Full outer join. . When files overlap, InfluxDB may need to deduplicate data. Because InfluxQL uses the 1. it possible to perform simple calculations on the metrics while retrieving them from database? I mean something like a+b, b-c, (a+b+c)/(d+e+f). union() does not preserve the sort order of the rows within tables. This is very simple using InfluxQL but seems to be very complicated using Flux. 0. I am able to query more than one measurements successfully but when it comes to combining multiple measurements with different fieldType, influxDB only returns results for one fieldType. I structure this as a function to optimize the query. What am I doing wrong here? Could you please take a look into this? Updated query - with proper interval - still does not work. May 20, 2021 · "Each flux query returns a stream of tables meaning your query can return multiple tables. 1. Query InfluxDB with the InfluxDB API. Get started with tasks; Manage Jun 25, 2018 · I want to show virtual machine monitoring data by grafana，so has installed grafana + influxdb by docker images，and import zabbix data into influxdb. After that, Graphite functions that act across series can be used, in particular for the above question, sumSeries. The join package lets you join data from different data sources such as InfluxDB, SQL database , CSV, and others. An array literal contains a sequence of values (also known as elements) enclosed in square brackets ([]). I want to "add" a column to the measurement which uses the estimated function. However, with the introduction of InfluxDB v3 , native SQL support is now a reality, particularly for PostgreSQL wire protocol dialects. Grafana: 7. Query B has fewer logins. stocks { (tag) symbol: String (field) price: Double (field) volume: Long (time) ts: Long } I am trying to query the measurement with a 15 min window. The first seven documents in this section provide a tutorial-style introduction to InfluxQL. InfluxDB Enterprise clusters: To kill queries on a cluster, you need to specify the query ID (qid) and the TCP host (for example, myhost:8088), available in the SHOW QUERIES output. host = 'hostb. So if I run a query that does not apply any filter on certain tags, I’ll get multiple tables as a result. Use the influx query command to query data in InfluxDB using Flux. I've looked at continuous queries, but am not sure if it's what I need, or if it even makes sense to use them. 8+ Influxdb and com. 8- FLUX disabled by hoster). Sep 9, 2020 · I am new to Influxdb. I currently have two different configurations for the incoming data. 8 I currently have three separate table panels in Grafana where the only difference between each query is the time range (Year, Month, Day). What I want to achieve is a way Apr 26, 2018 · I have checked with below things in influxdb: select hosta. In InfluxDB OSS Cloud, data is stored in buckets. Now assume that I want to have the data from the last two days. For the purposes of this TL;DR, ignore most of that Flux. x to 2. My question is: how can I join all these tables into a single table? What would be equivalent flux query for SELECT address, name FROM addresses ? (I am referring to FluxQL, the new query language developed by InfluxData) I didn't find a clear answer to this in the Aug 3, 2023 · The idea of data living in a vacuum is starting to disappear as many stakeholders expect to access multiple data sources and have an easy way to combine the data sets. In the next filter column, select _measurement from the column dropdown menu, and then select the home measurement. I am able to query more than measurements successfully but when it comes to combining multiple measurements with different fieldType, influxDB only returns results for one fieldType. – Use filter() to query data based on fields, tags, or any other column value. My goal is to Mar 25, 2024 · I want to combine sixteen queries into just one if this is possible. i need merge queries for multriple fields from two measurements in grafana table metrics。 how to merge cloumn CPU(%) and business_system to a row in below image? grafana question image Nov 13, 2022 · I want to combine multiple time series data into one table to export it to a . One measurement contains, besides the Time and DeviceId, multiple values (Temp and Humidity). Comparing values from different buckets. Note: yield() is implicit for queries that output a single stream of tables and is only necessary when yielding multiple results from a query. ) there might be some additional efficiencies that would improve the query speed, etc. Query in the Flux REPL. As an example, let’s say I have the following 2 data sets (measurements): Measurement #1: cpu measurement,tag,field cpu,temperature=50,cpu_usage=30 cpu,temperature=60,cpu_usage=40 cpu,temperature=70,cpu_usage=50 cpu,temperature=80,cpu An array type is an ordered sequence of values of the same type. For a panel, I want to have multiple columns for values from multiple queries. operator: provides statistics about each operation in a query. 1 using the InfluxDB API. That question does not seem to aggregate per (e. Add your 2nd Query – node_memory_MemTotal_bytes. Following this example is the fastest way to explore math across measurements. Query A has Logins. If the login from query A is missing in query B - leave the field empty. Automatic DBRP mapping; Virtual DBRP mappings Sep 18, 2021 · Similar to another question (Multiple Aggregation Projections in fluxql). Apr 10, 2018 · The sample data I have in the influxdb is: time name value1 2018-04-09T01:17:55. Starting with the IOx-powered version of InfluxDB, the platform supports native SQL queries. Parameters columns. Use the Flux Profiler package to measure query performance and append performance metrics to your query output. Each input row is passed to the fn as a record, r.
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