--- title: Stream Oracle changes to ClickHouse in real time | daily.dev description: Redpanda Connect now ships a native `oracledb_cdc` input that reads Oracle redo logs via LogMiner to capture row-level changes without Debezium, Kafka Connect,... canonical: https://daily.dev/posts/stream-oracle-changes-to-clickhouse-in-real-time-uwvlnl0gv twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Stream Oracle changes to ClickHouse in real time | daily.dev og:description: Redpanda Connect now ships a native `oracledb_cdc` input that reads Oracle redo logs via LogMiner to capture row-level changes without Debezium, Kafka Connect,... og:url: https://daily.dev/posts/stream-oracle-changes-to-clickhouse-in-real-time-uwvlnl0gv og:image: https://api.daily.dev/og/posts/UWVLnl0gV.png og:image:alt: Stream Oracle changes to ClickHouse in real time og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Stream Oracle changes to ClickHouse in real time **[Redpanda](https://daily.dev/sources/redpanda)** · 8 min read · 0 upvotes · 0 comments ## Summary Redpanda Connect now ships a native `oracledb_cdc` input that reads Oracle redo logs via LogMiner to capture row-level changes without Debezium, Kafka Connect, or a JVM. The walkthrough builds a two-stage pipeline: Oracle changes flow into a durable Redpanda topic, then a second pipeline reads that topic and writes to ClickHouse using `sql_insert` with the `ReplacingMergeTree(_scn)` engine to automatically deduplicate updates. Both stages are configured as single-binary YAML files run with `rpk connect run`. Key details include enabling ARCHIVELOG mode and supplemental logging on Oracle, using `stream_snapshot: true` for initial data load, setting Kafka keys to primary keys for ordered partitioning, and batching inserts for ClickHouse performance. The `oracledb_cdc` connector is an enterprise feature available via a free 30-day trial license. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Oracle CDC now available in Redpanda Connect](https://daily.dev/posts/oracle-cdc-now-available-in-redpanda-connect-3vgpx46a2) · Redpanda · 0 upvotes · 0 comments - [Real-time Change Data Capture with Redpanda Connect and MySQL](https://daily.dev/posts/real-time-change-data-capture-with-redpanda-connect-and-mysql-qsupyiqod) · Redpanda · 0 upvotes · 0 comments - [How Spyne simplified their CDC pipeline with ClickPipes and ClickHouse Cloud](https://daily.dev/posts/how-spyne-simplified-their-cdc-pipeline-with-clickpipes-and-clickhouse-cloud-xtczu2jzw) · ClickHouse · 0 upvotes · 0 comments - [Implementing real-time change data capture with Debezium for Amazon Aurora PostgreSQL and Amazon RDS for PostgreSQL](https://daily.dev/posts/implementing-real-time-change-data-capture-with-debezium-for-amazon-aurora-postgresql-and-amazon-rds-wwimwgweo) · AWS Database Blog · 0 upvotes · 0 comments --- Tags: [#oracle](https://daily.dev/tags/oracle), [#clickhouse](https://daily.dev/tags/clickhouse), [#change-data-capture](https://daily.dev/tags/change-data-capture), [#redpanda](https://daily.dev/tags/redpanda) [View this post on daily.dev](https://daily.dev/posts/stream-oracle-changes-to-clickhouse-in-real-time-uwvlnl0gv) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Stream Oracle changes to ClickHouse in real time","url":"https://daily.dev/posts/stream-oracle-changes-to-clickhouse-in-real-time-uwvlnl0gv","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/stream-oracle-changes-to-clickhouse-in-real-time-uwvlnl0gv"},"datePublished":"2026-07-07T16:03:18.561Z","dateModified":"2026-08-24T07:11:02.643Z","description":"Redpanda Connect now ships a native `oracledb_cdc` input that reads Oracle redo logs via LogMiner to capture row-level changes without Debezium, Kafka Connect,...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/9eb3ba979d651d279143274049507c28?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/9eb3ba979d651d279143274049507c28?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"Redpanda","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Redpanda","logo":"https://media.daily.dev/image/upload/s--1R2EIDcb--/f_auto,q_auto/v1769934743/logos/redpanda","url":"https://daily.dev/sources/redpanda"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/stream-oracle-changes-to-clickhouse-in-real-time-uwvlnl0gv","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"oracle,clickhouse,change-data-capture,redpanda","timeRequired":"PT8M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Redpanda","item":"https://daily.dev/sources/redpanda"},{"@type":"ListItem","position":3,"name":"Stream Oracle changes to ClickHouse in real time"}]} ```