Vladimir Lovtsov / Leadership notebook
#data
Practice, analysis and observations on this topic.
Articles: 4
RAG for a company: from document search to a useful assistant
RAG explained from the ground up: indexing, retrieval, small-team and enterprise architectures, published implementations, evaluation, and the path from answers to useful actions.
Data Exchange Formats: JSON, XML, Protobuf, Avro, and MessagePack
Choose a format through contract evolution, backward and forward compatibility, tooling, and measured processing cost rather than fashion.
SQL in Practice: Your First PostgreSQL Queries
A self-contained SQL exercise for analysts: create two tables and practise SELECT, filtering, JOINs, aggregates, data changes, and transactions.
Message Brokers: Where the Guarantees Stop
A practical comparison of RabbitMQ, ActiveMQ Classic, and Kafka: messaging models, acknowledgements, partition ordering, and the real limits of at-least-once and exactly-once.
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