Filtering Data with the Apache Flink® Table API | Apache Flink® Table API
Get started: https://cnfl.io/apache-flink-table-ap... | In this video, we'll show the details of implementing a where clause with the Table API. We'll see how they behave differently with streaming data, especially when updates occur.
When building *streaming operations* with the Table API, the *where* clause can apply *filter logic* to the statement. This allows it to return a subset of the data being streamed.
However, although the where clause looks similar to the SQL equivalent, when working with streaming data the behavior can differ from what we might expect in a SQL database.
Streaming data isn't all available and once. As a result, streaming operations persist over time, emitting new data as they encounter it.
Furthermore, when updating a database table, you rarely have to worry about queries that occurred before your update. Streaming operations, because they remain active, require updates to propagate downstream.
Use the promo code FLINKTABLEAPIJAVA & CONFLUENTDEV1 to get $25 of free Confluent Cloud usage and skip credit card entry: https://cnfl.io/try-cloud-apache-flin...
Promo code details: https://cnfl.io/apache-flink-table-ap...
RELATED RESOURCES
► Java Create Table Statement in Confluent Cloud - https://cnfl.io/42qh5tZ
► SQL Create Table Statement in Confluent Cloud - https://cnfl.io/4arkgn3
► Apache Flink 101 course - https://cnfl.io/4j9Usj7
► Apache Flink SQL course - https://cnfl.io/40ceBfM
CHAPTERS
00:00 - Intro
00:19 - How is a where clause written in SQL?
00:49 - How is a where clause written in the Table API?
01:30 - What are some variations of a where clause?
02:15 - Why does a where clause behave differently when working with streaming data?
04:21 - How can data streams support updates to previously seen records?
06:42 - Closing
CONNECT
Subscribe, if you dare: / @confluentdeveloper
Community Slack: confluentcommunity.slack.com
X: https://x.com/confluentinc
Linkedin: / confluent
GitHub: https://github.com/confluentinc
Site: https://developer.confluent.io
ABOUT CONFLUENT DEVELOPER
Confluent Developer provides comprehensive resources for developers looking to learn about Apache Kafka®, Apache Flink®, Confluent Cloud, Confluent Platform, and any other technology related to the broader Data Streaming Platform. Content on Confluent Developer includes courses, getting started guides, topical deep-dives, patterns, tutorials, and listings of community events. Learn more at https://developer.confluent.io.
#apachekafka #apacheflink #confluent
На этой странице сайта вы можете посмотреть видео онлайн Filtering Data with the Apache Flink® Table API | Apache Flink® Table API длительностью часов минут секунд в хорошем качестве, которое загрузил пользователь Confluent Developer 06 Февраль 2025, поделитесь ссылкой с друзьями и знакомыми, на youtube это видео уже посмотрели 667 раз и оно понравилось 14 зрителям. Приятного просмотра!
