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

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SQL: Aggregate Queries

SQL: Aggregate Queries

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4 min read
PostgreSQL 22013 Error: Causes and Solutions Complete Guide

PostgreSQL 22013 Error: Causes and Solutions Complete Guide

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3 min read
SQL: Normalização e Formas Normais

SQL: Normalização e Formas Normais

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4 min read
Introduzindo SQL

Introduzindo SQL

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5 min read
SQL Keyword, Tipos de Dados & Operators

SQL Keyword, Tipos de Dados & Operators

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3 min read
T-SQL patterns that break when you migrate SQL Server to PostgreSQL (and where they hide in Java/C#)

T-SQL patterns that break when you migrate SQL Server to PostgreSQL (and where they hide in Java/C#)

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1 min read
Running Real SQL on DynamoDB: How It Actually Works

Running Real SQL on DynamoDB: How It Actually Works

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8 min read
QL AI Database Solutions: Building a Text-to-SQL Pipeline You Can Actually Run

QL AI Database Solutions: Building a Text-to-SQL Pipeline You Can Actually Run

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5 min read
Data Definition Language (DDL)

Data Definition Language (DDL)

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2 min read
Data Manipulation Language (DML)

Data Manipulation Language (DML)

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2 min read
From Individual Sandbox to Multiplayer: Group Rooms, Linked Servers, and Gamification in T-SQL Online

From Individual Sandbox to Multiplayer: Group Rooms, Linked Servers, and Gamification in T-SQL Online

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1 min read
Learning to Think in Sets, Not Loops

Learning to Think in Sets, Not Loops

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2 min read
SQL vs NoSQL Performance Optimization Considerations

SQL vs NoSQL Performance Optimization Considerations

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7 min read
PostgreSQL 2200D Error: Causes and Solutions Complete Guide

PostgreSQL 2200D Error: Causes and Solutions Complete Guide

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3 min read
A practical SQL query tuning playbook: execution plans, joins, indexes, and the traps

A practical SQL query tuning playbook: execution plans, joins, indexes, and the traps

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5 min read
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