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

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SQL, split values of two columns respectively and count members of their intersection #eg20

SQL, split values of two columns respectively and count members of their intersection #eg20

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1 min read
Build a Database Schema In 5 Steps

Build a Database Schema In 5 Steps

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26 min read
SQL as fast as NoSQL, Bulk Loads, Covering and Partial Indexes

SQL as fast as NoSQL, Bulk Loads, Covering and Partial Indexes

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4 min read
SQL, Set different flags for different groups according to whether there are duplicate values #eg19

SQL, Set different flags for different groups according to whether there are duplicate values #eg19

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How Indexing Works in MariaDB and Why It Helps with Optimization

How Indexing Works in MariaDB and Why It Helps with Optimization

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9 min read
5 Common SQL Server Performance Issues and How to Fix Them.

5 Common SQL Server Performance Issues and How to Fix Them.

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Add Missing Sequence Numbers to One Table according to The Other and Combine Two Tables #eg18

Add Missing Sequence Numbers to One Table according to The Other and Combine Two Tables #eg18

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Data Analyst vs Business Analyst: Understanding the Key Differences and Required Skill Sets

Data Analyst vs Business Analyst: Understanding the Key Differences and Required Skill Sets

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4 min read
Get the First Missing Item for the Sequence of Should-have-been Continuous Sequence Numbers #eg16

Get the First Missing Item for the Sequence of Should-have-been Continuous Sequence Numbers #eg16

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Postgres major version upgrades with minimal downtime

Postgres major version upgrades with minimal downtime

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4 min read
Enabling Special Needs Education and Empowerment

Enabling Special Needs Education and Empowerment

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2 min read
Understanding Database Isolation Levels: An Essential Overview

Understanding Database Isolation Levels: An Essential Overview

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3 min read
Transpose Multiple Columns into One Row in Each Group #eg15

Transpose Multiple Columns into One Row in Each Group #eg15

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PostgreSQL Fitness: 10 Essential Maintenance Practices for a Healthy Database

PostgreSQL Fitness: 10 Essential Maintenance Practices for a Healthy Database

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DBMS - Introduction

DBMS - Introduction

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Uploading Excel Files to SSMS Table

Uploading Excel Files to SSMS Table

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3 min read
Building a D&D 5e Character Generator: A Journey Through SQL and RPG Complexity

Building a D&D 5e Character Generator: A Journey Through SQL and RPG Complexity

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Why Developers should understand SQL Server Performance

Why Developers should understand SQL Server Performance

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2 min read
Fixing a slow table join

Fixing a slow table join

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7 min read
Linearly Scalable Architecture with Separation of Concern

Linearly Scalable Architecture with Separation of Concern

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2 min read
How To Debug SQL Procedures and Queries in Microsoft Visual Studio

How To Debug SQL Procedures and Queries in Microsoft Visual Studio

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SQL, mark continuous rows with sequence numbers #eg30

SQL, mark continuous rows with sequence numbers #eg30

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SQL, get historical status of each ID #eg22

SQL, get historical status of each ID #eg22

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ProjectEvent

ProjectEvent

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3 min read
ProBook

ProBook

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1 min read
Send reminder to employees when tasks are due

Send reminder to employees when tasks are due

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2 min read
Celebrating My Achievement: Snowflake Badge 1 Completion 🎉

Celebrating My Achievement: Snowflake Badge 1 Completion 🎉

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2 min read
Recommended Project: Querying Official Languages and Sorting

Recommended Project: Querying Official Languages and Sorting

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2 min read
Understanding Transactions In Databases : Keeping Your Records Consistent 📊💰🔄📚✅

Understanding Transactions In Databases : Keeping Your Records Consistent 📊💰🔄📚✅

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NoSQL vs NewSQL vs Distributed SQL: A Comprehensive Comparison

NoSQL vs NewSQL vs Distributed SQL: A Comprehensive Comparison

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4 min read
LINQPad for everything(or at least a lot)

LINQPad for everything(or at least a lot)

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3 min read
Blackboxing SQL in CFScript - Part 1

Blackboxing SQL in CFScript - Part 1

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5 min read
TypedSQL in Prisma: Type-Safe SQL Made Simple

TypedSQL in Prisma: Type-Safe SQL Made Simple

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SQL, get median of all columns in each row #eg21

SQL, get median of all columns in each row #eg21

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Where To Learn SQL

Where To Learn SQL

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SQL 101 📊 | A Guide to Basic Commands for Beginners 💡

SQL 101 📊 | A Guide to Basic Commands for Beginners 💡

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Hotel reservation Schema design (PostgreSQL)

Hotel reservation Schema design (PostgreSQL)

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4 min read
Sites to practice SQL

Sites to practice SQL

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10-Day .Net Aspire Challenge: Day 2— Add MSSQL Component

10-Day .Net Aspire Challenge: Day 2— Add MSSQL Component

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Choosing the Right Database for Your Project: Beyond Personal Experience

Choosing the Right Database for Your Project: Beyond Personal Experience

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SQL vs NoSQL: Understand the difference and know when to use each! 05:50

SQL vs NoSQL: Understand the difference and know when to use each!

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Ice vegas

Ice vegas

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1 min read
SQL, output associated records having many-to-many relationship row by row #eg26

SQL, output associated records having many-to-many relationship row by row #eg26

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1 min read
HackerRank SQL Preparation: Weather Observation Station 3(MySQL)

HackerRank SQL Preparation: Weather Observation Station 3(MySQL)

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Create Histogram Charts With MySQL – Tutorial

Create Histogram Charts With MySQL – Tutorial

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Launching ChartDB: Visualize database schemas with a single query

Launching ChartDB: Visualize database schemas with a single query

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1 min read
PREVENT YOUR BACKEND FROM SQL INJECTION

PREVENT YOUR BACKEND FROM SQL INJECTION

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RoadMap to Data-Analytics 2024!

RoadMap to Data-Analytics 2024!

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2 min read
An ASP.NET Core Web Api to access and manipulate project data using EF Core, and JWT on a PostgreSQL or SQL Server database.

An ASP.NET Core Web Api to access and manipulate project data using EF Core, and JWT on a PostgreSQL or SQL Server database.

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SQL Complete guide for Interview

SQL Complete guide for Interview

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How to Effectively Use the ALL Keyword in SQL Server Queries

How to Effectively Use the ALL Keyword in SQL Server Queries

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6 min read
Recommended Project: Personnel Management System Database Setup

Recommended Project: Personnel Management System Database Setup

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3 min read
How I Slashed CPU Usage by 20%: 5 Proven SQL Optimization Techniques

How I Slashed CPU Usage by 20%: 5 Proven SQL Optimization Techniques

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Ma Première Expérience avec SQL Server et T-SQL : Création d'une Base de Données pour une Bibliothèque

Ma Première Expérience avec SQL Server et T-SQL : Création d'une Base de Données pour une Bibliothèque

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5 min read
Creating Unique Slugs on Supabase with PostgreSQL

Creating Unique Slugs on Supabase with PostgreSQL

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SQL Server: How to Use the ADD Keyword for Schema Changes

SQL Server: How to Use the ADD Keyword for Schema Changes

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3 min read
Exploring New Features in PostgreSQL 17 with Python

Exploring New Features in PostgreSQL 17 with Python

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Understanding Your Data: The Essentials of Exploratory Data Analysis

Understanding Your Data: The Essentials of Exploratory Data Analysis

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8 min read
Basic MySQL Queries: A Comprehensive Guide

Basic MySQL Queries: A Comprehensive Guide

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4 min read
Database Indexing Explained: Why It's Like a Book's Table of Contents

Database Indexing Explained: Why It's Like a Book's Table of Contents

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3 min read
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