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

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PostgreSQL Performance in the Spotlight: Linux 7.0 Impact, Benchmarking & Vacuum Tuning

PostgreSQL Performance in the Spotlight: Linux 7.0 Impact, Benchmarking & Vacuum Tuning

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3 min read
How to Make xt850 Match xt 850

How to Make xt850 Match xt 850

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6 min read
From Chaos to Clarity: How SQL Transforms Raw Data into Powerful Stories

From Chaos to Clarity: How SQL Transforms Raw Data into Powerful Stories

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9 min read
Modelagem de Dados no Agro: Unindo fluxo de caixa e Ganho Médio Diário (GMD) no mesmo Banco de Dados

Modelagem de Dados no Agro: Unindo fluxo de caixa e Ganho Médio Diário (GMD) no mesmo Banco de Dados

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6 min read
I Tried to Analyze SQL Lineage Across 15 Databases — Everything Broke Until I Did This

I Tried to Analyze SQL Lineage Across 15 Databases — Everything Broke Until I Did This

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3 min read
Elasticsearch & Inverted Indices — The Death of SQL ILIKE (2026)

Elasticsearch & Inverted Indices — The Death of SQL ILIKE (2026)

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2 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
"Table 'test.p' doesn't exist" — Understanding SQL Aliases and Default JOIN Behavior

"Table 'test.p' doesn't exist" — Understanding SQL Aliases and Default JOIN Behavior

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2 min read
How Databricks Genie Turns Plain English Into SQL Code

How Databricks Genie Turns Plain English Into SQL Code

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11 min read
SQL Views Explained: Write Once, Query Forever

SQL Views Explained: Write Once, Query Forever

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6 min read
CVE-2026-21643: FortiClient EMS Critical SQL Injection — Actively Exploited, No Credentials Required

CVE-2026-21643: FortiClient EMS Critical SQL Injection — Actively Exploited, No Credentials Required

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2 min read
Cryogenic Storage: A Developer's Guide (Yes, Really)

Cryogenic Storage: A Developer's Guide (Yes, Really)

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2 min read
MySQL InnoDB Locking: The Silent Killer Behind Database Crashes

MySQL InnoDB Locking: The Silent Killer Behind Database Crashes

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24 min read
CTEs vs Subqueries in SQL: Which One Should You Use?

CTEs vs Subqueries in SQL: Which One Should You Use?

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3 min read
PetStore: Pure Java for UI and Safe SQL Mapping

PetStore: Pure Java for UI and Safe SQL Mapping

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3 min read
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