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

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Filtering Out Rows Using LEFT JOIN: A Clean Alternative to NOT IN

Filtering Out Rows Using LEFT JOIN: A Clean Alternative to NOT IN

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3 min read
SQL Commands
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SQL Commands

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2 min read
Hackerrank - SQL - Occupations
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Hackerrank - SQL - Occupations

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2 min read
From Redundancy to Reusability: A Better Way to Manage Shared Records in Relational Databases

From Redundancy to Reusability: A Better Way to Manage Shared Records in Relational Databases

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1 min read
🧩 When to Use NoSQL and SQL?
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🧩 When to Use NoSQL and SQL?

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2 min read
Hackerrank - SQL - Higher Than 75 Marks

Hackerrank - SQL - Higher Than 75 Marks

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2 min read
Unlock Database Perfection: 15 Essential Resources for SQL Normalization Mastery

Unlock Database Perfection: 15 Essential Resources for SQL Normalization Mastery

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5 min read
Hackerrank - SQL - Japanese Cities' Names

Hackerrank - SQL - Japanese Cities' Names

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1 min read
Hackerrank - SQL - Average Population of Each Continent

Hackerrank - SQL - Average Population of Each Continent

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2 min read
How I Analyzed Retail Sales Data Using SQL
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How I Analyzed Retail Sales Data Using SQL

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2 min read
SQL Server Stored Procedure Design for Flexible Record Lookup
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SQL Server Stored Procedure Design for Flexible Record Lookup

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5 min read
Hackerrank - SQL - Employee Salaries

Hackerrank - SQL - Employee Salaries

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2 min read
Rust Query Builder for SQL an SurrealDB

Rust Query Builder for SQL an SurrealDB

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2 min read
Django ORM: consultas complexas pt.2
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Django ORM: consultas complexas pt.2

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4 min read
Create ER Diagrams for PostgreSQL with a Free Design Tool
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Create ER Diagrams for PostgreSQL with a Free Design Tool

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5 min read
What is SQL? A Beginner's Complete Guide
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What is SQL? A Beginner's Complete Guide

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7 min read
The Cartesian Product Trap in Django ORM

The Cartesian Product Trap in Django ORM

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3 min read
SPL Lightweight Multisource Mixed Computation Practices
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SPL Lightweight Multisource Mixed Computation Practices

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3 min read
💡 Java Streams vs SQL – When to Use Which and Why

💡 Java Streams vs SQL – When to Use Which and Why

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2 min read
How I Built a Hospital Patient Management System Using SQL

How I Built a Hospital Patient Management System Using SQL

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2 min read
🧠 From Hive and Elastic to ClickHouse: What Surprised Me
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🧠 From Hive and Elastic to ClickHouse: What Surprised Me

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3 min read
Safeguarding Your PostgreSQL Data: A Practical Guide to pg_dump and pg_restore

Safeguarding Your PostgreSQL Data: A Practical Guide to pg_dump and pg_restore

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5 min read
Mastering Foreign Keys in MySQL: A Comprehensive Guide

Mastering Foreign Keys in MySQL: A Comprehensive Guide

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6 min read
Beginner’s Guide to SQL Server Stored Procedures
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Beginner’s Guide to SQL Server Stored Procedures

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5 min read
[Share] SQL - A Quick Intro

[Share] SQL - A Quick Intro

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8 min read
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