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10 January 2021

SQL Querying a log stream and outputting Calculations to another stream

Initially published on https://medium.com/data-querying/live-sql-querying-live-logs-and-sending-live-updates-easily-e6297150cf92 Log analysis tutorial from an Apache Kafka data stream via Flink SQL, ksqlDB & Hue Editor. Real time queries on streams on data is a modern way to perform powerful analyses as demoed in the previous post. This time we will see a more personalized scenario by querying our own logs generated in the Web Query Editor. First, thank you to the community for all the improvements on the open source projects mentioned below, with in particular Flink Version 1.…

3 minutes read - Tutorial / Version 4.9 / Flink SQL / ksqlDB

20 October 2020

Tutorial on querying live streams of data with ksql (Kafka SQL)

Real time data querying is becoming a modern standard. Who wants to wait until the next day or week when needing to take decision now? The stream of data comes from an Apache Kafka topic which can be queried via ksqlDB. Components To keep things simple, all the pieces have been put together in a “one-click” Docker Compose project which contains: ksqlDB from the ksqlDB quickstart A Hue Editor already configured with the ksqlDB Editor One-line setup For fetching the configurations and starting everything:…

3 minutes read - Tutorial / Version 4.9 / ksqlDB

15 September 2020

SQL Querying Improvements: Phoenix, Flink, SparkSql, ERD Table...

Hi Data Crunchers, Are you looking at executing your SQL queries more easily? Here is a series of various querying improvements coming in the next release of Hue! New Databases Hue is getting a more polished experience with Apache Phoenix, Apacke Flink SQL and Apache Spark SQL (via Apache Livy). Apache Phoenix Apache Phoenix makes it easy to query the Apache HBase database via SQL. Now the integration is fully working out of the box and several corner cases (e.…

4 minutes read - Version 4 / Phoenix / Flink SQL / ksqlDB / Spark SQL

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