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

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SQLite Concurrency Corruption, DuckDB Delta Writes, and DuckLake Data Inlining

SQLite Concurrency Corruption, DuckDB Delta Writes, and DuckLake Data Inlining

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3 min read
Beyond the SELECT: Mastering Advanced SQL for Surgical BI

Beyond the SELECT: Mastering Advanced SQL for Surgical BI

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2 min read
Data Analyst Interview Questions 2026: SQL, Business Cases, and Behavioral (What Actually Gets You Hired)

Data Analyst Interview Questions 2026: SQL, Business Cases, and Behavioral (What Actually Gets You Hired)

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4 min read
Why WHERE phone = NULL Returns Nothing in SQL

Why WHERE phone = NULL Returns Nothing in SQL

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4 min read
Coding Cat Oran S2 Ep1 — The Excel Republic

Coding Cat Oran S2 Ep1 — The Excel Republic

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2 min read
PostgreSQL Benchmarking Tool & SQLite Internals: API Error Handling, Join Optimization

PostgreSQL Benchmarking Tool & SQLite Internals: API Error Handling, Join Optimization

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3 min read
One Free Database Client That Replaced Five Tools in My Daily Workflow

One Free Database Client That Replaced Five Tools in My Daily Workflow

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4 min read
SQLite `generate_series` Precision Bug, PostgreSQL Pagination Tuning, & Large Table Replication

SQLite `generate_series` Precision Bug, PostgreSQL Pagination Tuning, & Large Table Replication

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3 min read
How I Built a Real-Time PostgreSQL WAL Reader in GO

How I Built a Real-Time PostgreSQL WAL Reader in GO

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2 min read
Master Window Function trong SQL: Bí Kíp Tối Ưu Phân Tích Dữ Liệu

Master Window Function trong SQL: Bí Kíp Tối Ưu Phân Tích Dữ Liệu

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4 min read
Hiểu Chuẩn ACID & Transaction: Đừng Để Database Của Bạn "Toang" Vì Lỗi Cơ Bản!

Hiểu Chuẩn ACID & Transaction: Đừng Để Database Của Bạn "Toang" Vì Lỗi Cơ Bản!

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6 min read
Set-Based Updates in Rails: 4 Hours to 8 Seconds

Set-Based Updates in Rails: 4 Hours to 8 Seconds

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5 min read
SQLite Internals & Audit Patterns; New Open-Source PostgreSQL UI

SQLite Internals & Audit Patterns; New Open-Source PostgreSQL UI

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4 min read
1.2.2 Semantic analysis: name resolution, type checking, catalog lookup

1.2.2 Semantic analysis: name resolution, type checking, catalog lookup

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10 min read
Beyond Basics: Mastering SQL's LEAD, LAG, RANK, DENSE_RANK, and NTILE

Beyond Basics: Mastering SQL's LEAD, LAG, RANK, DENSE_RANK, and NTILE

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6 min read
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