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

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How SQL Actually Works Under the Hood — A Deep Dive Into Snowflake and Redshift

How SQL Actually Works Under the Hood — A Deep Dive Into Snowflake and Redshift

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5 min read
DrawSQL Alternative: An Offline Desktop ERD Tool With No Table Limits

DrawSQL Alternative: An Offline Desktop ERD Tool With No Table Limits

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21 min read
PostgreSQL: A Beginner's Guide to Getting Started

PostgreSQL: A Beginner's Guide to Getting Started

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2 min read
Reconstructing Wallet Journeys Across DEX Frontends, One Chain at a Time

Reconstructing Wallet Journeys Across DEX Frontends, One Chain at a Time

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8 min read
SQL Is Surviving, Franklin: When Tables Start Talking

SQL Is Surviving, Franklin: When Tables Start Talking

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6 min read
Understanding and Solving the N+1 Problem in Spring Data JPA / Hibernate

Understanding and Solving the N+1 Problem in Spring Data JPA / Hibernate

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4 min read
Why Senior Data Engineers Write SQL Differently

Why Senior Data Engineers Write SQL Differently

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8 min read
How I Stopped Recalculating the Same MAX(date) Subquery on Redshift

How I Stopped Recalculating the Same MAX(date) Subquery on Redshift

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4 min read
10 MySQL Performance Optimization Techniques Every PHP Developer Must Know

10 MySQL Performance Optimization Techniques Every PHP Developer Must Know

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3 min read
SQL vs NoSQL for Node.js Applications: A Practical Guide

SQL vs NoSQL for Node.js Applications: A Practical Guide

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7 min read
Understanding SQL joins.

Understanding SQL joins.

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5 min read
Your text-to-SQL agent picks tables before security runs. Here’s the fix.

Your text-to-SQL agent picks tables before security runs. Here’s the fix.

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2 min read
'Column Must Appear in the GROUP BY Clause' — Why SQL Won't Let You Do That

'Column Must Appear in the GROUP BY Clause' — Why SQL Won't Let You Do That

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3 min read
Building a Visitor Data Platform with Digital Membership Cards

Building a Visitor Data Platform with Digital Membership Cards

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2 min read
Building a Zero-Budget Eval Harness for LLM-Assisted SQL Generation

Building a Zero-Budget Eval Harness for LLM-Assisted SQL Generation

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5 min read
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