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Gowtham Potureddi
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Apr 12, 2026
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Real-Time SQL on Streams: Materialize, RisingWave & Flink SQL Compared
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Jun 11
Real-Time SQL on Streams: Materialize, RisingWave & Flink SQL Compared
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47 min read
Lakehouse Data Mesh: Domain Ownership, Contracts & Federated Governance
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Jun 11
Lakehouse Data Mesh: Domain Ownership, Contracts & Federated Governance
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54 min read
psql Command Reference for Data Engineers: Connect, \copy, Bulk-Load, Inspect
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Jun 11
psql Command Reference for Data Engineers: Connect, \copy, Bulk-Load, Inspect
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49 min read
Python timedelta & datetime for Data Engineers: Time Math, Windows & Time Zones
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Jun 11
Python timedelta & datetime for Data Engineers: Time Math, Windows & Time Zones
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52 min read
BigQuery Console & SQL Workbench: Hands-On Tour for New Data Engineers
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Jun 10
BigQuery Console & SQL Workbench: Hands-On Tour for New Data Engineers
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48 min read
NoSQL vs SQL for Data Engineering: When to Pick Mongo, Cassandra, DynamoDB or Postgres
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Jun 10
NoSQL vs SQL for Data Engineering: When to Pick Mongo, Cassandra, DynamoDB or Postgres
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52 min read
Snowflake Certification Path (SnowPro Core Advanced): Full Prep & Sample Questions
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Jun 10
Snowflake Certification Path (SnowPro Core Advanced): Full Prep & Sample Questions
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49 min read
SQL Data Analyst Jobs in 2026: Salary, Interviews & Top Hiring Markets
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Jun 10
SQL Data Analyst Jobs in 2026: Salary, Interviews & Top Hiring Markets
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52 min read
SQL Murder Mystery, SQL Island & Gamified SQL Practice Walkthrough
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Jun 9
SQL Murder Mystery, SQL Island & Gamified SQL Practice Walkthrough
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53 min read
SQLZoo, SQLBolt, Mode SQL Tutorial & DataCamp SQL Compared: Which Platform Wins?
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Jun 9
SQLZoo, SQLBolt, Mode SQL Tutorial & DataCamp SQL Compared: Which Platform Wins?
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46 min read
M.Tech / Master's in Data Engineering: Programs, Curriculum & ROI vs Self-Study
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Jun 9
M.Tech / Master's in Data Engineering: Programs, Curriculum & ROI vs Self-Study
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63 min read
SQL Comments, Documentation & Readable Queries: Style Guides for DE Teams
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Jun 9
SQL Comments, Documentation & Readable Queries: Style Guides for DE Teams
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50 min read
Big Data Engineering: Hadoop, Spark, Kafka, Lakehouse — A 2026 Roadmap
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Jun 8
Big Data Engineering: Hadoop, Spark, Kafka, Lakehouse — A 2026 Roadmap
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49 min read
Data Engineer vs Data Scientist vs Data Analyst: Role Boundaries, Stacks & Salary
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Jun 8
Data Engineer vs Data Scientist vs Data Analyst: Role Boundaries, Stacks & Salary
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56 min read
SQL UNIQUE Constraints & Deduplication Strategies: Hard vs Soft Uniqueness
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Jun 8
SQL UNIQUE Constraints & Deduplication Strategies: Hard vs Soft Uniqueness
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47 min read
SQL ROUND, FLOOR, CEIL & TRUNC: Numeric Rounding for Reporting & Finance
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Jun 8
SQL ROUND, FLOOR, CEIL & TRUNC: Numeric Rounding for Reporting & Finance
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53 min read
TRUNCATE vs DELETE vs DROP in SQL: Behavior, Performance, Replication & Rollback
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Jun 7
TRUNCATE vs DELETE vs DROP in SQL: Behavior, Performance, Replication & Rollback
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47 min read
T-SQL Stored Procedures for SQL Server: Params, Return Codes, sp_executesql & TRY/CATCH
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Jun 7
T-SQL Stored Procedures for SQL Server: Params, Return Codes, sp_executesql & TRY/CATCH
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50 min read
SQL Server Analysis Services (SSAS): Tabular vs Multidimensional for Data Engineers
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Jun 7
SQL Server Analysis Services (SSAS): Tabular vs Multidimensional for Data Engineers
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45 min read
SSMS 21 (SQL Server Management Studio): A Data Engineer's Productivity Guide
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Jun 7
SSMS 21 (SQL Server Management Studio): A Data Engineer's Productivity Guide
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45 min read
SQL Server 2025 Interview Questions: What's New in T-SQL, Performance & AI Features
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Jun 6
SQL Server 2025 Interview Questions: What's New in T-SQL, Performance & AI Features
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44 min read
Databricks API & CLI for Data Engineers: Jobs, Clusters, Repos & CI/CD
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Jun 6
Databricks API & CLI for Data Engineers: Jobs, Clusters, Repos & CI/CD
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49 min read
Databricks Genie (AI/BI): Text-to-SQL Spaces, Trust & Production Use Cases
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Jun 6
Databricks Genie (AI/BI): Text-to-SQL Spaces, Trust & Production Use Cases
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50 min read
Databricks Unity Catalog: Governance, Lineage, Row/Column Security & Delta Sharing
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Jun 6
Databricks Unity Catalog: Governance, Lineage, Row/Column Security & Delta Sharing
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51 min read
ChatGPT / LLM Workflows for Data Engineers: SQL Generation, dbt Macros & Lineage
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Jun 5
ChatGPT / LLM Workflows for Data Engineers: SQL Generation, dbt Macros & Lineage
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41 min read
Pandas for Data Engineering: melt, pivot, groupby, merge & DuckDB Migration
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Jun 5
Pandas for Data Engineering: melt, pivot, groupby, merge & DuckDB Migration
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35 min read
ETL vs ELT: Architecture, Trade-offs & When Each Wins
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Jun 5
ETL vs ELT: Architecture, Trade-offs & When Each Wins
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45 min read
Enterprise Data Warehouse Design (Inmon-Style): Multi-Source, Conformed, Governed
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Jun 5
Enterprise Data Warehouse Design (Inmon-Style): Multi-Source, Conformed, Governed
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45 min read
SQL for Data Analytics & Data Analysts: Cohorts, Funnels, Retention
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Jun 4
SQL for Data Analytics & Data Analysts: Cohorts, Funnels, Retention
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46 min read
SQL IF / IIF / NULLIF / NULL-Handling Cheat Sheet for Data Engineers
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Jun 4
SQL IF / IIF / NULLIF / NULL-Handling Cheat Sheet for Data Engineers
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42 min read
SQL LIKE, REGEXP & Wildcard Pattern Matching for Data Engineers
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Jun 4
SQL LIKE, REGEXP & Wildcard Pattern Matching for Data Engineers
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45 min read
SQL DISTINCT + COUNT(DISTINCT): Deduplication, Approximate Counts, HyperLogLog
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Jun 4
SQL DISTINCT + COUNT(DISTINCT): Deduplication, Approximate Counts, HyperLogLog
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44 min read
SQL Subqueries: Correlated, Scalar, Derived Tables & EXISTS
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Jun 3
SQL Subqueries: Correlated, Scalar, Derived Tables & EXISTS
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43 min read
SQL BETWEEN & Range Queries: Numeric, Date, Inclusive vs Exclusive
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Jun 3
SQL BETWEEN & Range Queries: Numeric, Date, Inclusive vs Exclusive
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47 min read
SQL ORDER BY, NULLS FIRST/LAST & Multi-Column Sorts
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Jun 3
SQL ORDER BY, NULLS FIRST/LAST & Multi-Column Sorts
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49 min read
SQL Aggregate Functions Deep Dive: SUM, AVG, MIN, MAX, COUNT(DISTINCT)
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Jun 3
SQL Aggregate Functions Deep Dive: SUM, AVG, MIN, MAX, COUNT(DISTINCT)
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44 min read
SQL Data Types Deep Dive: INT, NUMERIC, VARCHAR, JSON, ARRAY, TIMESTAMP
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Jun 2
SQL Data Types Deep Dive: INT, NUMERIC, VARCHAR, JSON, ARRAY, TIMESTAMP
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46 min read
SQL Cheat Sheet: Clause Order, Joins, Aggregates, Windows (2026)
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Jun 2
SQL Cheat Sheet: Clause Order, Joins, Aggregates, Windows (2026)
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44 min read
Data Engineering Internship Guide: Resume, Projects & Interview Loops
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Jun 2
Data Engineering Internship Guide: Resume, Projects & Interview Loops
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48 min read
What is Data Engineering? Role, Stack, Day-in-the-Life (2026)
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Jun 2
What is Data Engineering? Role, Stack, Day-in-the-Life (2026)
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45 min read
Data Engineering Skills: 10 Technical + 5 Soft Skills Hiring Managers Test
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Jun 2
Data Engineering Skills: 10 Technical + 5 Soft Skills Hiring Managers Test
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45 min read
Data Engineering Salary 2026: Levels, Locations & Comp Breakdowns
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Jun 2
Data Engineering Salary 2026: Levels, Locations & Comp Breakdowns
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46 min read
Data Engineering Projects: 8 Portfolio Projects to Land Your First DE Job
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Jun 2
Data Engineering Projects: 8 Portfolio Projects to Land Your First DE Job
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46 min read
Data Engineering Jobs: How to Land Your First DE Role in 2026
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Jun 1
Data Engineering Jobs: How to Land Your First DE Role in 2026
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49 min read
Data Engineering Courses & Self-Study Roadmap (2026): From SQL to Your First DE Job
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May 31
Data Engineering Courses & Self-Study Roadmap (2026): From SQL to Your First DE Job
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50 min read
Apache Iceberg vs Delta Lake vs Hudi: Table Formats Compared for Data Engineering
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May 31
Apache Iceberg vs Delta Lake vs Hudi: Table Formats Compared for Data Engineering
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44 min read
Kimball Dimensional Modeling for Data Engineering Interviews: Facts, Dimensions, Grain & SCDs
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May 31
Kimball Dimensional Modeling for Data Engineering Interviews: Facts, Dimensions, Grain & SCDs
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50 min read
Data Lakehouse vs Data Warehouse vs Data Lake: Which Architecture Wins
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May 31
Data Lakehouse vs Data Warehouse vs Data Lake: Which Architecture Wins
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41 min read
ACID, BASE & Transactions in SQL for Data Engineers
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May 30
ACID, BASE & Transactions in SQL for Data Engineers
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42 min read
SQL Query Optimization: EXPLAIN Plans, Indexes & Tuning Techniques for Data Engineers
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May 30
SQL Query Optimization: EXPLAIN Plans, Indexes & Tuning Techniques for Data Engineers
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44 min read
Databricks Lakehouse + Medallion Architecture: Bronze, Silver, Gold with Delta
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May 30
Databricks Lakehouse + Medallion Architecture: Bronze, Silver, Gold with Delta
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41 min read
Data Orchestration Compared: Airflow vs Dagster vs Prefect — A Modern Stack Guide
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May 30
Data Orchestration Compared: Airflow vs Dagster vs Prefect — A Modern Stack Guide
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44 min read
Star Schema vs Snowflake Schema: Dimensional Modeling for Data Engineering
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May 29
Star Schema vs Snowflake Schema: Dimensional Modeling for Data Engineering
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42 min read
Databricks Certification (Data Engineer Associate): Full Prep Guide
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May 29
Databricks Certification (Data Engineer Associate): Full Prep Guide
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42 min read
dbt for Data Engineering: Models, Tests, Macros & Production Patterns
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May 29
dbt for Data Engineering: Models, Tests, Macros & Production Patterns
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43 min read
Data Pipeline Design: Batch vs Streaming, Idempotency, Backfills
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May 29
Data Pipeline Design: Batch vs Streaming, Idempotency, Backfills
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53 min read
ETL Testing Interview Questions & Answers — A Complete Deep-Dive Guide
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May 28
ETL Testing Interview Questions & Answers — A Complete Deep-Dive Guide
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45 min read
ETL Tools Compared: Airflow, dbt, Fivetran, Glue, Talend, Informatica — A Deep Engineering Guide
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May 28
ETL Tools Compared: Airflow, dbt, Fivetran, Glue, Talend, Informatica — A Deep Engineering Guide
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43 min read
Apache Flink for Data Engineering Interviews: Streaming, Watermarks, State & Exactly-Once
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May 28
Apache Flink for Data Engineering Interviews: Streaming, Watermarks, State & Exactly-Once
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29 min read
Slowly Changing Dimensions (SCD) for Data Engineering Interviews: Type 1, 2, 3, 6 with SQL & dbt
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May 28
Slowly Changing Dimensions (SCD) for Data Engineering Interviews: Type 1, 2, 3, 6 with SQL & dbt
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29 min read
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