📰 Dev.to · Gowtham Potureddi

Apache Beam Programming Guide: PCollections, Windowing, Runners (Dataflow / Flink)

Flink CDC Connectors: Schema-First Streaming Ingest at Scale

GitHub Actions for Data Engineering: CI/CD for dbt, SQL & Airflow Pipelines

dbt Model Contracts, Constraints & Versioning: Production Patterns

dbt Model Contracts, Constraints & Versioning: Production Patterns

Apache Pulsar vs Kafka for Data Engineering: Geo-Replication, Tiered Storage & Functions

Spark Structured Streaming: Triggers, State, Watermarks & Exactly-Once Sinks

Kafka Connect Deep Dive: Source, Sink, SMTs, Schema Registry & Idempotent Writes

Apache Kafka Streams vs Apache Flink: Stateful Streaming Engines Compared

SQL Comments, Documentation & Readable Queries: Style Guides for DE Teams

ETL Testing Interview Questions & Answers — A Complete Deep-Dive Guide

ETL Tools Compared: Airflow, dbt, Fivetran, Glue, Talend, Informatica — A Deep Engineering Guide

Change Data Capture (CDC) for Data Engineering Interviews: Debezium, Log-Based vs Trigger-Based, Kafka Connect

Apache Airflow Interview Questions: DAGs, Operators, Sensors, XComs & Schedulers

GCP Data Engineering: BigQuery, Dataflow, Pub/Sub, Composer

AWS Data Engineer Associate (DEA-C01) Certification: Prep Roadmap

AWS Data Engineering: Glue, EMR, Athena, Kinesis — End-to-End Guide

Azure Data Engineering: Synapse, ADF, Databricks — Full Guide

MySQL Interview Questions & Answers: Top Patterns for Data Engineers

CREATE TABLE & ALTER TABLE in SQL: Schema Design for Data Engineers

SQL PIVOT and UNPIVOT: Reshape Rows ↔ Columns for Analytics

SQL Date Functions: DATEDIFF, DATE_FORMAT, EXTRACT & Date Math

GROUP BY and HAVING in SQL: Aggregation Patterns for Interviews

SQL CASE WHEN Statement: Conditional Logic for Data Engineering