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

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ADVANCED SQL FOR DATA ANALYTICS:ADVANCED TECHNIQUES EVERY DATA ANALYST SHOULD KNOW.

ADVANCED SQL FOR DATA ANALYTICS:ADVANCED TECHNIQUES EVERY DATA ANALYST SHOULD KNOW.

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7 min read
SQL Injection – UNION attack, retrieving multiple values in a single column | PortSwigger Lab Note #5

SQL Injection – UNION attack, retrieving multiple values in a single column | PortSwigger Lab Note #5

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1 min read
Log 01: The Legacy Break | Switching to Docker for Data Science

Log 01: The Legacy Break | Switching to Docker for Data Science

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2 min read
INSERT Performance Tuning for TimescaleDB

INSERT Performance Tuning for TimescaleDB

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4 min read
SQL Window Functions Don't Have to Be Scary 🪟

SQL Window Functions Don't Have to Be Scary 🪟

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3 min read
Bancos de Dados Relacionais: A Estrutura que Sustenta Aplicações Modernas

Bancos de Dados Relacionais: A Estrutura que Sustenta Aplicações Modernas

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3 min read
SQL Injection – UNION attack, retrieving data from other tables | PortSwigger Lab Note #4

SQL Injection – UNION attack, retrieving data from other tables | PortSwigger Lab Note #4

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1 min read
SQL Injection – UNION attack | PortSwigger Lab Note #3

SQL Injection – UNION attack | PortSwigger Lab Note #3

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1 min read
Connecting Power BI to SQL Databases: A Comprehensive Guide

Connecting Power BI to SQL Databases: A Comprehensive Guide

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9 min read
SQL ANALYTICAL MECHANICS: JOINS & WINDOW FUNCTIONS

SQL ANALYTICAL MECHANICS: JOINS & WINDOW FUNCTIONS

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7 min read
Data Engineers: What If Your BigQuery Function Could Return Multiple Tables?

Data Engineers: What If Your BigQuery Function Could Return Multiple Tables?

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2 min read
9 Data Engineering Challenges That Kill Pipelines in Production (And How I approached Them With Pure Snowflake SQL)

9 Data Engineering Challenges That Kill Pipelines in Production (And How I approached Them With Pure Snowflake SQL)

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14 min read
PostgreSQL Query Optimization: 10 Techniques That Actually Work

PostgreSQL Query Optimization: 10 Techniques That Actually Work

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12 min read
SQL Queries Asked In Interview

SQL Queries Asked In Interview

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2 min read
Understanding SQL Joins with Practical Examples (Beginner Friendly Guide)

Understanding SQL Joins with Practical Examples (Beginner Friendly Guide)

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8 min read
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