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

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Modelagem de Dados para Análise de Funis no Amazon Redshift

Modelagem de Dados para Análise de Funis no Amazon Redshift

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4 min read
What Is Row-Level Locking?

What Is Row-Level Locking?

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2 min read
mysqld Crashes with Signal 11 and Page Corrupt Error

mysqld Crashes with Signal 11 and Page Corrupt Error

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4 min read
TIL: Clustered and Non-clustered indices in SQL

TIL: Clustered and Non-clustered indices in SQL

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3 min read
Building Self-Correcting LLM Systems: The Evaluator-Optimizer Pattern

Building Self-Correcting LLM Systems: The Evaluator-Optimizer Pattern

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6 min read
Understanding Database Normalization

Understanding Database Normalization

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6 min read
Cursor & Trigger in DBMS

Cursor & Trigger in DBMS

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2 min read
CRUD Operations in MongoDB Atlas – A Beginner’s Guide with Student Database Example

CRUD Operations in MongoDB Atlas – A Beginner’s Guide with Student Database Example

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3 min read
CURSOR AND TRIGGER

CURSOR AND TRIGGER

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2 min read
GCP Cloud SQL + Terraform: Quick Start Guide

GCP Cloud SQL + Terraform: Quick Start Guide

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2 min read
Understanding Normalization in DBMS: Oracle Live SQL Practical Guide

Understanding Normalization in DBMS: Oracle Live SQL Practical Guide

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3 min read
Recuperando dados no Oracle (sem envolver o DBA) com FlashBack Query

Recuperando dados no Oracle (sem envolver o DBA) com FlashBack Query

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3 min read
Database Normalization

Database Normalization

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3 min read
Cursor +Trigger

Cursor +Trigger

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2 min read
ACID PROPERTIES

ACID PROPERTIES

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2 min read
normalization

normalization

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2 min read
Indexing, Hashing, and Query

Indexing, Hashing, and Query

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1 min read
From JSONB to Bitmasks: Faster Flags & Cleaner RLS in Postgres with Go/TS

From JSONB to Bitmasks: Faster Flags & Cleaner RLS in Postgres with Go/TS

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6 min read
Transactions, Deadlocks & Log Based Recovery

Transactions, Deadlocks & Log Based Recovery

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1 min read
MySQL Path: 4 Hands-On Challenges for Data Entry, User Management, Multi-Table Queries & Sales Analysis

MySQL Path: 4 Hands-On Challenges for Data Entry, User Management, Multi-Table Queries & Sales Analysis

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2 min read
Cursor and Trigger

Cursor and Trigger

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2 min read
MySQL ALTER TABLE: A Developer’s Guide to Schema Changes

MySQL ALTER TABLE: A Developer’s Guide to Schema Changes

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2 min read
Find the difference

Find the difference

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1 min read
The Backbone of Database Reliability: Exploring ACID in Action with SQL Transactions A Step-by-Step Guide

The Backbone of Database Reliability: Exploring ACID in Action with SQL Transactions A Step-by-Step Guide

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3 min read
Database Normalization in SQL — 1NF, 2NF, and 3NF Explained (Student–Course Case Study)

Database Normalization in SQL — 1NF, 2NF, and 3NF Explained (Student–Course Case Study)

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3 min read
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