Jessica Aki

Learning databases, data engineering, and building in public

Abuja, FCT, Nigeria Joined on Jan 6, 2026

Education

B. Eng Computer Engineering at Covenant University

Pronouns

She/Her

Jessica Aki

Feb 1

SQL Stored Procedures: From Hard‑Coded Logic to Reusable SQL

#database #postgres #sql #beginners

3 min read

Want to connect with Jessica Aki?

Create an account to connect with Jessica Aki. You can also sign in below to proceed if you already have an account.

Create Account

Already have an account? Sign in

Cover image for ROLLUP vs CUBE: How I Finally Understood SQL Subtotals

Jessica Aki

Jan 26

ROLLUP vs CUBE: How I Finally Understood SQL Subtotals

#sql #postgres #database #beginners

3 min read

Jessica Aki

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 SQL JOINs Finally Clicked for Me (and How They Can for You Too)

Jessica Aki

Jan 22

How SQL JOINs Finally Clicked for Me (and How They Can for You Too)

#database #sql #postgres #beginners

4 min read

Jessica Aki

Jan 21

SQL Dates Finally Made Sense: NOW, AGE, EXTRACT, and Why Time Is Weird

#sql #database #postgres #beginners

3 min read

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

Jessica Aki

Jan 20

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

#sql #postgres #database #beginners

3 min read

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

Jessica Aki

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 Table Design: Database Fundamentals to Know as a Beginner

Jessica Aki

Jan 19

Table Design: Database Fundamentals to Know as a Beginner

#sql #database #beginners #learning

4 min read

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

Jessica Aki

Jan 17

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

#oracle #sql #beginners #database

3 min read

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

Jessica Aki

Jan 16

Learning Databases Beyond SQL: My First Day with Oracle Tables

#sql #oracle #beginners #database

3 min read

Cover image for SQL Aggregations Finally Made Sense: GROUP BY, HAVING, MIN, MAX, AVG

Jessica Aki

Jan 13

SQL Aggregations Finally Made Sense: GROUP BY, HAVING, MIN, MAX, AVG

#database #postgres #beginners #sql

3 min read

Cover image for I Built a PostgreSQL User Analytics System — Here’s What I Learned About Real SQL

Jessica Aki

Jan 9

I Built a PostgreSQL User Analytics System — Here’s What I Learned About Real SQL

#postgres #beginners #database #sql

3 min read

Cover image for SQL Pattern Matching As A Beginner (LIKE, ILIKE, IN, BETWEEN)

Jessica Aki

Jan 9

SQL Pattern Matching As A Beginner (LIKE, ILIKE, IN, BETWEEN)

#sql #postgres #beginners #database

3 min read

Cover image for Learning SQL Subqueries as a Beginner: What Made Sense and What Didn’t

Jessica Aki

Jan 9

Learning SQL Subqueries as a Beginner: What Made Sense and What Didn’t

#sql #database #beginners #postgres

3 min read

Cover image for Practicing SQL with Real Data: INSERT, WHERE, ORDER BY, and GROUP BY

Jessica Aki

Jan 7

Practicing SQL with Real Data: INSERT, WHERE, ORDER BY, and GROUP BY

#database #sql #postgres #beginners

3 min read

Cover image for Learning SQL in Practice: LeetCode Challenges and Setting Up PostgreSQL

Jessica Aki

Jan 7

Learning SQL in Practice: LeetCode Challenges and Setting Up PostgreSQL

#sql #postgres #database #beginners

3 min read

Cover image for Databases & SQL Basics As A Beginner: A Practical Introduction

Jessica Aki

Jan 6

Databases & SQL Basics As A Beginner: A Practical Introduction

#database #sql #beginners #postgressql

3 min read

Forem

Jessica Aki

Badges

1 Week Community Wellness Streak

Writing Debut

Skills/Languages

Currently learning

SQL Stored Procedures: From Hard‑Coded Logic to Reusable SQL

Want to connect with Jessica Aki?

ROLLUP vs CUBE: How I Finally Understood SQL Subtotals

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

How SQL JOINs Finally Clicked for Me (and How They Can for You Too)

SQL Dates Finally Made Sense: NOW, AGE, EXTRACT, and Why Time Is Weird

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

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

Table Design: Database Fundamentals to Know as a Beginner

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

Learning Databases Beyond SQL: My First Day with Oracle Tables

SQL Aggregations Finally Made Sense: GROUP BY, HAVING, MIN, MAX, AVG

I Built a PostgreSQL User Analytics System — Here’s What I Learned About Real SQL

SQL Pattern Matching As A Beginner (LIKE, ILIKE, IN, BETWEEN)

Learning SQL Subqueries as a Beginner: What Made Sense and What Didn’t

Practicing SQL with Real Data: INSERT, WHERE, ORDER BY, and GROUP BY

Learning SQL in Practice: LeetCode Challenges and Setting Up PostgreSQL

Databases & SQL Basics As A Beginner: A Practical Introduction