SQL•2026-07-26•5 min read
Understanding SQL Query Performance: Table Scans vs Index Lookups
A guide to optimizing SQL query performance, understanding table scans vs index lookups, and reading database execution plans.
CX
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Utilities•2026-08-20•7 min read
How to Convert Unix Timestamps: JavaScript, Python, SQL, and CLI Recipes
Practical developer recipes for bidirectionally converting 10-digit (seconds) and 13-digit (milliseconds) Unix epoch timestamps into UTC, ISO 8601, and local dates across JavaScript, Python, SQL, and terminal CLI tools.
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CoShareXDeveloper Tools•2026-08-31•7 min read
How to Format SQL Queries: CTEs, JOIN Alignment, Window Functions, and SQLFluff Standards
Master SQL query formatting: uppercase keyword standards, Common Table Expression (CTE) indentation, JOIN alignment, window functions, and SQLFluff linting.
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