#sql Development Tutorials & Tips | Roast Dev

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Automating SQL Queries with LangChain and Gemini : A Step-by-Step Guide

GitHub RepositoryLearn how to automate SQL query generation and execution using LangChain, Google Gemini AI, and MySQL. This guide walks you through setting up a seamless pipeline from transforming na...

02.04.2025 0 Read More

How to Optimize a Slow Query

Analyze the slow execution plan with EXPLAIN Use the database’s EXPLAIN or EXPLAIN ANALYZE (PostgreSQL), EXPLAIN PLAN (Oracle), or SHOW PLAN (SQL Server) to see how the database executes the query...

02.04.2025 0 Read More

SQL Temporary Tables: A Quick and Practical Guide

Temporary tables in SQL help manage large queries efficiently. They are session-specific and get removed automatically when no longer needed. This guide explains how to create them and when to use the...

03.04.2025 0 Read More

Foreign Keys: A must in SQL, but not in a Document Database?

In relational SQL databases, foreign keys are essential for guaranteeing referential integrity. There are two main reasons to declare them, particularly regarding their cascading behavior: Enforcing S...

03.04.2025 0 Read More

Desire for Structure (read “SQL”)

Or obsession for control?Let’s admit it: we love the idea of running SQL queries on ALL our data! Not just a preference — it feels like an obsession. No matter how old or how rarely accessed, we c...

03.04.2025 0 Read More

(Beyond) The Art of Database Indexing

and Why Indexes Alone Won’t Save You Executive Summary Modern databases handle vast amounts of data — often spanning tens of terabytes or even petabytes — and relying solely on indexing ...

03.04.2025 0 Read More

DuckDB 🦆: Unleashing the Powerhouse Query Engine Within

Introduction DuckDB is widely recognized for its analytical processing capabilities, but its true power lies in its exceptional query engine. Unlike traditional databases that require extensi...

03.04.2025 0 Read More

DuckDB 🦆 : Libérez le puissant moteur de Requêtes

Introduction DuckDB est largement reconnu pour ses capacités de traitement analytique, mais sa véritable puissance réside dans son moteur de requête exceptionnel. Contrairement aux bases ...

03.04.2025 0 Read More

Hacker rank's Median SQL Solution

Let's get to know the questionA median is defined as a number separating the higher half of a data set from the lower half. Query the median of the Northern Latitudes (LAT_N) from STATION and round yo...

04.04.2025 0 Read More

SQL vs. NoSQL: Key Differences Explained

Understanding the difference between SQL and NoSQL databases is crucial for choosing the right data management system. SQL databases offer structured schema and are ideal for complex queries and ACID ...

05.04.2025 0 Read More

Automating SQL Queries with LangChain and Gemini : A Step-by-Step Guide

How to Optimize a Slow Query

SQL Temporary Tables: A Quick and Practical Guide

Foreign Keys: A must in SQL, but not in a Document Database?

Desire for Structure (read “SQL”)

(Beyond) The Art of Database Indexing

DuckDB 🦆: Unleashing the Powerhouse Query Engine Within

DuckDB 🦆 : Libérez le puissant moteur de Requêtes

Hacker rank's Median SQL Solution

SQL vs. NoSQL: Key Differences Explained

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