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

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Jan 23

Old Oracle Joins vs ANSI JOINs: Why I Chose One and Stuck With It

#oracle #sql #database #beginners

2 min read

Cover image for “How I Built an End-to-End ETL Pipeline Using Databricks & Delta Lake”

Khandare Shubham

Dec 19 '25

“How I Built an End-to-End ETL Pipeline Using Databricks & Delta Lake”

#databricks #sql #pyspark #etl

2 min read

Cover image for Medallion Architecture 101: Building Data Pipelines That Don't Fall Apart

Jan 23

Medallion Architecture 101: Building Data Pipelines That Don't Fall Apart

#dataengineering #database #python #sql

11 min read

Cover image for Querying & Filtering in Oracle Databases: What Actually Clicked for Me As a Beginner

Jan 19

Querying & Filtering in Oracle Databases: What Actually Clicked for Me As a Beginner

#oracle #sql #database #beginners

4 min read

Cover image for The Day I Chose VARCHAR(255) and Regretted It: A PostgreSQL String Story

Jan 22

The Day I Chose VARCHAR(255) and Regretted It: A PostgreSQL String Story

#postgres #database #performance #sql

8 min read

Cover image for How One Can Start Their Journey in Data Engineering

Jan 10

How One Can Start Their Journey in Data Engineering

#programming #dataengineering #sql #beginners

4 min read

Cover image for MSSQL DBCC How good are they really ?

Amar Abaz

Jan 21

MSSQL DBCC How good are they really ?

#sql #tutorial #sqlserver #database

6 min read

Cover image for SQL Nulls Finally Made Sense: COALESCE, NULLIF, and Safer Calculations

Jan 20

SQL Nulls Finally Made Sense: COALESCE, NULLIF, and Safer Calculations

#sql #postgres #database #beginners

3 min read

Cover image for Columns & Data Types in Oracle: What Actually Stuck on Day 2 (As a Beginner)

Jan 17

Columns & Data Types in Oracle: What Actually Stuck on Day 2 (As a Beginner)

#oracle #sql #beginners #database

3 min read

Jan 21

Subqueries vs JOINs: When to Use Each in SQL

#beginners #database #performance #sql

4 min read

Jan 9

TIL: Blazing-fast correlated exists queries

#rails #performance #sql

1 min read

Cover image for Table Design: Database Fundamentals to Know as a Beginner

Jan 19

Table Design: Database Fundamentals to Know as a Beginner

#sql #database #beginners #learning

4 min read

Cover image for How SQLite Replaced PostgreSQL as My First Choice

Wolfgang Rathgeb

Dec 15 '25

How SQLite Replaced PostgreSQL as My First Choice

#sql #database #programming

4 min read

Cover image for Learning Databases Beyond SQL: My First Day with Oracle Tables

Jan 16

Learning Databases Beyond SQL: My First Day with Oracle Tables

#sql #oracle #beginners #database

3 min read

Cover image for From CSV to Insights: Analysing Walmart Sales with Python & PostgreSQL

Akanle Tolulope

Dec 15 '25

From CSV to Insights: Analysing Walmart Sales with Python & PostgreSQL

#database #python #sql #beginners

2 min read

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