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

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Boolean Data Type in Oracle ِDatabase 23ai

Boolean Data Type in Oracle ِDatabase 23ai

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2 min read
# PostgreSQL Tutorial: 📚 What Really Happens When You Add and Drop Columns 2000 Times in PostgreSQL

# PostgreSQL Tutorial: 📚 What Really Happens When You Add and Drop Columns 2000 Times in PostgreSQL

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Entity-Relationship (ER) Diagrams: Visualizing Your Database Structure

Entity-Relationship (ER) Diagrams: Visualizing Your Database Structure

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2 min read
5 SQL Queries Everyone Should Know

5 SQL Queries Everyone Should Know

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2 min read
oracle 23ai - Control PDB Open Order

oracle 23ai - Control PDB Open Order

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2 min read
SQL For Data Analytics in a Nutshell

SQL For Data Analytics in a Nutshell

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5 min read
Number Non-Null Values in Order within the Group — From SQL to SPL #17

Number Non-Null Values in Order within the Group — From SQL to SPL #17

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🎬 Behind the Scenes of a Simple SQL Query in PostgreSQL

🎬 Behind the Scenes of a Simple SQL Query in PostgreSQL

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2 min read
Hashing in Presto/Athena

Hashing in Presto/Athena

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1 min read
SQL Basics: SELECT, INSERT, UPDATE, and DELETE Explained

SQL Basics: SELECT, INSERT, UPDATE, and DELETE Explained

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1 min read
What Is SQL Server? A Beginner’s Guide to Microsoft’s Database System

What Is SQL Server? A Beginner’s Guide to Microsoft’s Database System

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4 min read
Getting Started with SQL: A Guide for Data Analysts

Getting Started with SQL: A Guide for Data Analysts

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Olake (Lakehouse)

Olake (Lakehouse)

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2 min read
Apresentação do Repositório Dotnet Templates

Apresentação do Repositório Dotnet Templates

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2 min read
Backup (and restore) an Sql database inside a docker container.

Backup (and restore) an Sql database inside a docker container.

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1 min read
Using SQLite in the Browser with WebAssembly and React (Local-First Apps with No Backend)

Using SQLite in the Browser with WebAssembly and React (Local-First Apps with No Backend)

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3 min read
Building Weekly Historical Insights with SQL Server, Python, SQLite, and Power BI

Building Weekly Historical Insights with SQL Server, Python, SQLite, and Power BI

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1 min read
Oracle 23ai — Automatic SQL Transpiler Feature

Oracle 23ai — Automatic SQL Transpiler Feature

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1 min read
Basics of Animal Tracking Databases: Crafting the Schema

Basics of Animal Tracking Databases: Crafting the Schema

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4 min read
Pagination with COUNT(*) OVER() in Atlassian Forge SQL: How to avoid double queries — and stay secure in TypeScript

Pagination with COUNT(*) OVER() in Atlassian Forge SQL: How to avoid double queries — and stay secure in TypeScript

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2 min read
Oracle Database 23ai - CLOB vs JSON - Series Part 3 | Data Type Realistic Stress Load Comparison on Weather Data

Oracle Database 23ai - CLOB vs JSON - Series Part 3 | Data Type Realistic Stress Load Comparison on Weather Data

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125 min read
Ecto for Elixir: A Beginner's Guide to Database Interactions

Ecto for Elixir: A Beginner's Guide to Database Interactions

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3 min read
Getting Values from Multiple Format Strings to Multiple Records — From SQL to SPL #16

Getting Values from Multiple Format Strings to Multiple Records — From SQL to SPL #16

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SQL vs. NoSQL: Key Differences Explained

SQL vs. NoSQL: Key Differences Explained

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SQL JOINs Explained: Connecting Data Across Tables

SQL JOINs Explained: Connecting Data Across Tables

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6 min read
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