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

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Difference between WHERE vs HAVING Clause in SQL

Difference between WHERE vs HAVING Clause in SQL

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3 min read
SQL Injection Isn't Dead Yet

SQL Injection Isn't Dead Yet

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6 min read
Exploring Advanced SQL Techniques: Aggregation Methods for Structured Data Retrieval

Exploring Advanced SQL Techniques: Aggregation Methods for Structured Data Retrieval

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4 min read
Mastering SQL Queries: A Comprehensive Guide for Beginners

Mastering SQL Queries: A Comprehensive Guide for Beginners

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2 min read
How I migrated from Firebase to Supabase

How I migrated from Firebase to Supabase

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5 min read
Using migrations with Golang

Using migrations with Golang

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5 min read
How to Replace a Null with the Corresponding Value in the Previous Record

How to Replace a Null with the Corresponding Value in the Previous Record

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1 min read
Calculate the Total Price According to the Cumulative Price Table

Calculate the Total Price According to the Cumulative Price Table

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1 min read
Types of equi-joins

Types of equi-joins

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4 min read
What is the Difference between "sequel" and "SQL"?

What is the Difference between "sequel" and "SQL"?

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1 min read
About transaction identifier (transaction_id) in PostgreSQL.

About transaction identifier (transaction_id) in PostgreSQL.

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2 min read
In a Multilevel Relationship, How to Replace Null Values at Nodes by Corresponding Values at Their Parent Nodes

In a Multilevel Relationship, How to Replace Null Values at Nodes by Corresponding Values at Their Parent Nodes

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1 min read
JOINs in SQL

JOINs in SQL

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5 min read
How to Calculate Median on Values That Have Corresponding Quantities

How to Calculate Median on Values That Have Corresponding Quantities

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2 min read
How to Transpose Rows to Columns on Multiple Fields in Each Group

How to Transpose Rows to Columns on Multiple Fields in Each Group

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2 min read
Dimension alignment

Dimension alignment

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4 min read
Practical Experiments for Optimizing Django query with the power of SQL joins

Practical Experiments for Optimizing Django query with the power of SQL joins

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7 min read
SQL | DDL, DQL, DML, DCL and TCL Commands

SQL | DDL, DQL, DML, DCL and TCL Commands

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2 min read
Introducing Filterable: Simplify Data Handling in Your Laravel Applications

Introducing Filterable: Simplify Data Handling in Your Laravel Applications

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7 min read
Easy no-code REST API for your databases

Easy no-code REST API for your databases

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3 min read
Oracle Database - Compare Execution Plans

Oracle Database - Compare Execution Plans

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5 min read
How to calculate the distance between Kyoto and Tokyo using a PostgreSQL database?

How to calculate the distance between Kyoto and Tokyo using a PostgreSQL database?

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2 min read
The best type for storing money in our posgresql db

The best type for storing money in our posgresql db

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2 min read
Understanding of NULL in PostgreSQL database.

Understanding of NULL in PostgreSQL database.

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2 min read
Predicate Pushdown - Understanding Practically With An Example

Predicate Pushdown - Understanding Practically With An Example

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2 min read
Common Table Expressions (CTEs) in SQL

Common Table Expressions (CTEs) in SQL

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1 min read
Introduction to Amazon Athena: A Fast and Cost-Effective Serverless Query Service

Introduction to Amazon Athena: A Fast and Cost-Effective Serverless Query Service

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3 min read
PostgreSQL: Deleting all records from a table, except for the first and last ones.

PostgreSQL: Deleting all records from a table, except for the first and last ones.

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2 min read
Why MongoDB is not great for complex reporting?

Why MongoDB is not great for complex reporting?

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1 min read
What is SQL in picture

What is SQL in picture

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1 min read
Say No to SQL đź™…

Say No to SQL đź™…

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3 min read
Oracle Database - Identifying Session Tracefiles - without actually tracing them :-)

Oracle Database - Identifying Session Tracefiles - without actually tracing them :-)

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5 min read
Understanding SQL vs. NoSQL Databases: A Beginner's Guide

Understanding SQL vs. NoSQL Databases: A Beginner's Guide

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2 min read
JOINS IN SQL

JOINS IN SQL

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2 min read
Custom SQL Scripts in PostgreSQL PgBench

Custom SQL Scripts in PostgreSQL PgBench

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6 min read
Using Temporary Tables in MariaDB

Using Temporary Tables in MariaDB

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2 min read
Statistical information about tables in a PostgreSQL Database.

Statistical information about tables in a PostgreSQL Database.

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2 min read
What is SQL in pictures. Diving deeper (Part 2)

What is SQL in pictures. Diving deeper (Part 2)

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2 min read
Move Fast and “Branch” Things

Move Fast and “Branch” Things

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8 min read
Python and SQL: Objects in Programming

Python and SQL: Objects in Programming

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3 min read
Advanced SQL Techniques: Take Next Level with CTE and SubQueries

Advanced SQL Techniques: Take Next Level with CTE and SubQueries

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2 min read
How to join tables in PostgreSQL using the WITH clause?

How to join tables in PostgreSQL using the WITH clause?

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2 min read
A Software Engineer's Tips and Tricks #1: Drizzle

A Software Engineer's Tips and Tricks #1: Drizzle

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2 min read
Top 10 most asked SQL interview questions along with their answers

Top 10 most asked SQL interview questions along with their answers

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3 min read
Week 1: New NOTR Server - Containerization and Data Storage

Week 1: New NOTR Server - Containerization and Data Storage

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3 min read
SQL DATA MANIPULATION

SQL DATA MANIPULATION

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3 min read
Tracking Personal Finances with SQL: Learn As You Manage Your Money!

Tracking Personal Finances with SQL: Learn As You Manage Your Money!

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2 min read
Fetching Data (Next.js)

Fetching Data (Next.js)

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2 min read
Simulate Clock Skew in Docker Container

Simulate Clock Skew in Docker Container

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2 min read
Finding Which Columns Value Has Actually Changed in PostgreSQL Trigger Functions

Finding Which Columns Value Has Actually Changed in PostgreSQL Trigger Functions

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2 min read
Tips and Tricks for Troubleshooting ClickHouse Wait Events

Tips and Tricks for Troubleshooting ClickHouse Wait Events

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2 min read
How to find the third and fifth-highest values in a PostgreSQL table?

How to find the third and fifth-highest values in a PostgreSQL table?

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2 min read
How to Back Up and Restore Azure SQL Databases

How to Back Up and Restore Azure SQL Databases

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8 min read
How to Secure Your Supabase Database and Storage

How to Secure Your Supabase Database and Storage

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6 min read
Mastering SQL WHERE statement with dbForge Studio for SQL Server

Mastering SQL WHERE statement with dbForge Studio for SQL Server

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1 min read
Inside GmOwl: A Guide to Quiz Functionality

Inside GmOwl: A Guide to Quiz Functionality

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2 min read
Mastering Conversations: A Guide to Building and Using a Java-Based Chat (StarChat) with IRIS Cloud SQL.

Mastering Conversations: A Guide to Building and Using a Java-Based Chat (StarChat) with IRIS Cloud SQL.

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3 min read
Quick SQL guide and cheat sheet: Essential Commands

Quick SQL guide and cheat sheet: Essential Commands

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1 min read
What’s New in Blazor Query Builder: 2024 Volume 1

What’s New in Blazor Query Builder: 2024 Volume 1

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8 min read
Effective Annotating of Strace Output for MySQL Performance Troubleshooting

Effective Annotating of Strace Output for MySQL Performance Troubleshooting

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4 min read
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