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

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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
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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
The Real Costs of ETL and How MindsDB Eliminates Them
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The Real Costs of ETL and How MindsDB Eliminates Them

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

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6 min read
Cursor & Trigger in DBMS

Cursor & Trigger in DBMS

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2 min read
CURSOR AND TRIGGER

CURSOR AND TRIGGER

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

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2 min read
Understanding Normalization in DBMS: Oracle Live SQL Practical Guide
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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
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Recuperando dados no Oracle (sem envolver o DBA) com FlashBack Query

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3 min read
Database Normalization
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Database Normalization

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3 min read
Cursor +Trigger
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Cursor +Trigger

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2 min read
ACID PROPERTIES
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ACID PROPERTIES

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2 min read
normalization

normalization

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

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6 min read
Indexing, Hashing, and Query
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Indexing, Hashing, and Query

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

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2 min read
MySQL ALTER TABLE: A Developer’s Guide to Schema Changes
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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
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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)
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Database Normalization in SQL — 1NF, 2NF, and 3NF Explained (Student–Course Case Study)

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3 min read
The First Production Performance Problem I Faced (and How I Solved It)
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The First Production Performance Problem I Faced (and How I Solved It)

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2 min read
Comparative guide for SQL Subqueries vs CTEs vs Temp Tables vs Views vs Materialized Views in AWS Aurora
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Comparative guide for SQL Subqueries vs CTEs vs Temp Tables vs Views vs Materialized Views in AWS Aurora

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5 min read
PostgreSQL Advanced Queries & Data Types: A Practical Guide to Robust Data Management
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PostgreSQL Advanced Queries & Data Types: A Practical Guide to Robust Data Management

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3 min read
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