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

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Day 10 of 100 Days of ClickHouse®: What Makes ClickHouse SQL Different?

Day 10 of 100 Days of ClickHouse®: What Makes ClickHouse SQL Different?

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4 min read
How do I answer "what did my data look like last month" in Postgres?

How do I answer "what did my data look like last month" in Postgres?

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4 min read
DuckDB Integrates Lance Lakehouse; SQLite CVE Fix; Postgres 19 Beta on K8s

DuckDB Integrates Lance Lakehouse; SQLite CVE Fix; Postgres 19 Beta on K8s

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3 min read
I got tired of writing the same history table boilerplate, so I built a Postgres extension

I got tired of writing the same history table boilerplate, so I built a Postgres extension

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3 min read
PostgreSQL 2201E Error: Causes and Solutions Complete Guide

PostgreSQL 2201E Error: Causes and Solutions Complete Guide

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3 min read
Oracle ORA-00289 Error: Causes and Solutions Complete Guide

Oracle ORA-00289 Error: Causes and Solutions Complete Guide

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3 min read
Day 9 of 100 Days of ClickHouse®: Mastering Data Aggregation from GROUP BY to CUBE

Day 9 of 100 Days of ClickHouse®: Mastering Data Aggregation from GROUP BY to CUBE

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4 min read
PostgreSQL 22015 Error: Causes and Solutions Complete Guide

PostgreSQL 22015 Error: Causes and Solutions Complete Guide

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3 min read
Oracle ORA-00265 Error: Causes and Solutions Complete Guide

Oracle ORA-00265 Error: Causes and Solutions Complete Guide

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3 min read
Scaling PostgreSQL in Production: Indexing, RPC Functions, Views, and Query Optimization

Scaling PostgreSQL in Production: Indexing, RPC Functions, Views, and Query Optimization

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6 min read
SQLite Optimizer Deep Dive, Change-Set Internals & Azure PostgreSQL Architecture

SQLite Optimizer Deep Dive, Change-Set Internals & Azure PostgreSQL Architecture

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3 min read
How I Cut 769 Database Queries With One Window Function

How I Cut 769 Database Queries With One Window Function

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9 min read
Oracle ORA-00264 Error: Causes and Solutions Complete Guide

Oracle ORA-00264 Error: Causes and Solutions Complete Guide

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3 min read
When Text Becomes Code: Defending LLM–Database Integrations from Prompt Injection

When Text Becomes Code: Defending LLM–Database Integrations from Prompt Injection

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7 min read
Why LLM Agents Still Can't Query NoSQL Databases

Why LLM Agents Still Can't Query NoSQL Databases

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5 min read
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