https://sudonull.com/oracle-postgresql-migration-without-downtime
Step-by-Step Technical Guide to Migrating from Oracle to PostgreSQL Without Service Downtime. CDC, Debezium, Kafka Connect, Liquibase — Implementation Details.
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In this project
https://sudonull.com/sse-notifications-in-spa-real-time-without-polling
Integration of SSE and Mercure for asynchronous updates in SPA. Reuse of OpenAPI schemas, CDC for DB changes. Guide for middle/senior dev.
https://sudonull.com/flink-real-time-join-processing-update-with-delete-insert
Analysis of update issues in Apache Flink JOIN and solution via delete+insert from Debezium. Code, scenarios, state guarantees. For middle/senior dev. Study the implementation.
https://sudonull.com/flink-real-time-join-tables-4-2-tb
Implementation of stateful JOIN on Apache Flink for real-time result updates between terabyte tables. Table API, KeyedCoProcessFunction, MapState. Code and architecture for middle/senior.
https://sudonull.com/inner-join-in-flink-with-debezium-crud
Implementation of real-time inner join of tables in Apache Flink with full support for create/read/update/delete from Debezium. Code, state management, limitations. For middle/senior dev.
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