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Posts on tips and tricks, using and learning about SQL for database development and analysis.

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DuckDB-Iceberg v1.5.3 Features, SQLite R-Tree -0.0 Bug, and pg_kpart for PostgreSQL Partitioning

DuckDB-Iceberg v1.5.3 Features, SQLite R-Tree -0.0 Bug, and pg_kpart for PostgreSQL Partitioning

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3 min read
Digital Trainee Struggles with SQL SELECT Queries and Table Relationships: Targeted Practice and Mentorship Offer Solutions

Digital Trainee Struggles with SQL SELECT Queries and Table Relationships: Targeted Practice and Mentorship Offer Solutions

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15 min read
Top 12 SQL Interview Problems for Data Engineers, With Answers

Top 12 SQL Interview Problems for Data Engineers, With Answers

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9 min read
PostgreSQL 22P01 Error: Causes and Solutions Complete Guide

PostgreSQL 22P01 Error: Causes and Solutions Complete Guide

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3 min read
Building My First End-to-End ETL Pipeline with Airflow, BigQuery, and Docker

Building My First End-to-End ETL Pipeline with Airflow, BigQuery, and Docker

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2 min read
AI-Native Data Engineering: From ETL Pipelines to Agentic Data Serving

AI-Native Data Engineering: From ETL Pipelines to Agentic Data Serving

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12 min read
PostgreSQL 2200F Error: Causes and Solutions Complete Guide

PostgreSQL 2200F Error: Causes and Solutions Complete Guide

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3 min read
SELECT FINAL and OPTIMIZE FINAL Are Not the Same Thing

SELECT FINAL and OPTIMIZE FINAL Are Not the Same Thing

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3 min read
Day 15 of #100DaysOfClickHouse: Mastering the ClickHouse Client

Day 15 of #100DaysOfClickHouse: Mastering the ClickHouse Client

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2 min read
PostgreSQL 22027 Error: Causes and Solutions Complete Guide

PostgreSQL 22027 Error: Causes and Solutions Complete Guide

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3 min read
Oracle ORA-00600 Error: Causes and Solutions Complete Guide

Oracle ORA-00600 Error: Causes and Solutions Complete Guide

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3 min read
# How I Cut SQL Query Time from 45 Seconds to 8 Seconds

# How I Cut SQL Query Time from 45 Seconds to 8 Seconds

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1 min read
DuckDB Data Inlining, SQLite Fossildelta OOB, Postgres 19 Temporal Data

DuckDB Data Inlining, SQLite Fossildelta OOB, Postgres 19 Temporal Data

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3 min read
Why I Built a Go SQL Helper

Why I Built a Go SQL Helper

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8 min read
SQL as Architecture: The Irreconcilable Philosophies of jOOQ and LINQ

SQL as Architecture: The Irreconcilable Philosophies of jOOQ and LINQ

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17 min read
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