Querytech Academy Querytech Academy Academy
Part of the Data Intelligence Architect Pathway

Data Intelligence Professional Foundation

The professional foundation for a career in data. Learn to turn real, messy data into answers a business can trust — SQL, spreadsheets, Python, analysis and clear communication — built up across three progressive terms.

About 574 hours of real coursework

Enroll in this Pathway
The Credential

Certified Technology Professional - Data Intelligence

Finishing every course is not what earns this credential. You earn it by demonstrating all 14 required competencies through real, assessed evidence, then bringing them together in the Project below — reviewed end to end, not graded on attendance.

Professional & Solution Architecture

  • Identify the Underlying Problem
  • Elicit Functional Requirements

Data Science and Analytics

  • Data Modeling & Schema Design
  • SQL & Data Querying
  • Data Analysis with Python
  • Statistical Analysis
  • Exploratory Data Analysis
  • Business Intelligence & Reporting
  • Data Cleaning & Preparation
  • Business Analytics
  • Data Ethics & Governance
  • Data Portfolio & Communication
  • Spreadsheet-Based Data Analysis

Data Intelligence

  • Machine Learning Foundations for Data Systems
Term 1 of 3 ₦300,000 / term

Fundamentals

Build the essential knowledge and capability of a data professional: spreadsheets, SQL, how databases are structured, and the statistical reasoning to read data critically. You finish able to answer clear questions from a dataset with confidence.

"A short orientation before the tools. It sets out what data intelligence is -- turning data into reliable intelligence for decisions, systems and solutions -- and how that differs from data analytics. You leave knowing the shape of a data professional's work, how the three levels build on each other, and where the pathway leads."

Included Modules
What Data Intelligence Is
The Data Professional's Work
How This Program Works
Where This Leads

"The gentlest on-ramp into structured data work, and a tool most analysts still use daily. You build real working capability in a spreadsheet -- formulas, lookups, pivot tables, clean data entry -- enough to answer everyday questions from a dataset without writing code. Tool-agnostic across Excel, Google Sheets and LibreOffice Calc. Stops at self-service data modelling (Power Query / Power Pivot / DAX), covered in the BI & Visualization specialisation."

Included Modules
Spreadsheet Basics for Data Work
Formulas & Functions
Sorting, Filtering & Conditional Formatting
Lookups
PivotTables & PivotCharts
Data Validation & Clean Entry
Basic Charts

"The essential SQL capability every data professional needs: reading, filtering, combining and summarising data from a relational database in standard ANSI SQL that works across MySQL, PostgreSQL, SQL Server and Oracle. You finish able to answer clear questions from a single database confidently. Stops where analytical querying begins -- subqueries, CTEs and window functions are SQL Applied."

Included Modules
Relational Databases & the SQL Language
SELECT & Filtering
Sorting, Grouping & Aggregation
Joining Tables
Reading an Existing Schema
Data Types & Built-in Functions

"How the data a professional queries is actually structured, and how to design a structure that holds up. Keys, normalisation and entity-relationship modelling; you can read, critique and produce a sound relational schema for a transactional system. Dimensional / analytical modelling is awareness only -- its depth belongs in the Data Engineering and BI specialisations."

Included Modules
Why Schema Design Matters
Keys & Constraints
Normalisation (1NF-3NF)
Entity-Relationship Modelling
Designing & Critiquing a Schema
Transactional vs Analytical Shapes

"The reasoning a data professional applies before and after the calculation. Data literacy -- questioning where a number came from and what it does and does not say -- plus the practical statistics to summarise data, describe uncertainty, and tell correlation from causation. Formal experiment design is out of scope here; it is owned by Business Analytics so it is not taught twice."

Included Modules
Reading Data Critically
Descriptive Statistics
Distributions
Sampling & Uncertainty
Confidence Intervals
Correlation vs Causation
Statistical Significance

Skills Gained at This Stage

  • Querying a relational database to answer real questions
  • Designing a clean, normalised schema from requirements
  • Describing and interpreting data with descriptive statistics
  • Modelling and analysing data in a spreadsheet

Professional Competencies

  • • Spreadsheet-Based Data Analysis
  • • SQL & Data Querying
  • • Data Modeling & Schema Design
  • • Statistical Analysis

Industry Tools

SQL (DBeaver / MySQL Workbench) MySQL / PostgreSQL Excel / Google Sheets
Term 2 of 3 ₦400,000 / term

Applied

Turn that knowledge into practical capability. Query and analyse messy real datasets in SQL and Python, clean and prepare data others can trust, explore it systematically, communicate what you find, and build a foundation in machine learning.

"Applied SQL for real analysis: composing multi-table queries, subqueries, CTEs and window functions to answer layered questions from messy, realistic datasets -- the queries an analyst actually writes on the job. Assumes SQL Fundamentals."

Included Modules
Advanced Filtering & Conditional Logic
Advanced Joins & Self-Joins
Subqueries & Correlated Subqueries
Common Table Expressions (CTEs)
Window Functions
Reporting Aggregations
Set Operations

"Python as a data professional's second core tool alongside SQL: the language essentials, then the pandas / NumPy workflow for loading, shaping and analysing data programmatically. Deliberately overlaps SQL and the EDA course -- the same task done a second way builds real fluency. Advanced wrangling and production practices are out of scope here."

Included Modules
Python for Data Professionals
Data Structures & Files
NumPy Essentials
pandas: DataFrames & Series
Transforming Data with pandas
Exploratory Analysis in Python
Case Studies

"The part of the job that is most of the job. You take raw, real-world data -- inconsistent, incomplete, duplicated -- and turn it into something analysis can trust, with steps that can be re-run when the data refreshes. Refocused from 'manipulation & analysis' onto preparation specifically."

Included Modules
The Shape of Real Data
Missing & Invalid Values
Types, Formats & Encoding
Deduplication & Record Matching
Merging & Reshaping
Validation & Reusable Cleaning Steps

"This course teaches systematic techniques to explore, understand, and extract insights from data before formal modeling or reporting."

Included Modules
Principles of Exploratory Analysis
Trend Detection & Pattern Analysis
Outlier Detection & Treatment
Distribution Analysis
Sector & Competitor Benchmarking
Regression Fundamentals
EDA Reporting & Insights

"Two halves of one job: making data visible and making it land. Clear statistical and comparative visuals, dashboards and repeatable reports, then structuring a finding for a decision-maker without distorting it. Absorbs the former Business Communication & Storytelling course. Ends with your first real portfolio piece."

Included Modules
Plotting Fundamentals
Statistical & Comparative Visuals
Dashboards & Repeatable Reporting
Visual Storytelling Principles
Avoiding Misleading Charts
Presenting to Decision-Makers
Translating Metrics into Business Language
Building a Data Portfolio

"Build a rigorous foundation in machine learning: training, evaluation, and the bias-variance tradeoff that governs model quality."

Included Modules
Supervised vs Unsupervised Learning
Training vs Testing Data
Feature Engineering
Bias & Variance
Model Evaluation Metrics
Cross-Validation
Hyperparameter Tuning

Skills Gained at This Stage

  • Cleaning and preparing messy real-world datasets
  • Running an exploratory analysis from question to finding
  • Analysing data programmatically with Python and pandas
  • Building dashboards and a portfolio-ready data story
  • Training and evaluating a first machine-learning model

Professional Competencies

  • • SQL & Data Querying
  • • Data Analysis with Python
  • • Data Cleaning & Preparation
  • • Exploratory Data Analysis
  • • Business Intelligence & Reporting
  • • Data Portfolio & Communication
  • • Machine Learning Foundations for Data Systems

Industry Tools

Python (pandas, NumPy) Jupyter / Google Colab Power BI or Tableau scikit-learn
Term 3 of 3 ₦375,000 / term

Professional

Perform as a data professional. Define a data solution from a vague business problem, work in SQL at production depth, connect analysis to real decisions, and practise responsibly -- then prove it in the Professional Data Intelligence Project.

"Where you move from "I can work with data" to "I can understand a professional problem and determine what a data solution needs to do." Given a vague business ask, you learn to find the real problem underneath it, identify who and what constrains the solution, and produce clear, testable requirements a team could build from. This is the first place inside the Foundation program where solution-thinking is taught rather than assumed."

Included Modules
Problem vs Proposed Solution
Stakeholders & Constraints
Writing a Defensible Problem Statement
Eliciting Functional Requirements
Non-Functional Requirements
Documenting & Communicating Requirements

"SQL used the way a professional uses it: from a requirement, for performance, in a team, toward something that runs in production. You cover how a database executes a query, how to write queries that stay fast as data grows, and the practices that make SQL work maintainable by more than one person. Assumes SQL Applied."

Included Modules
How Databases Execute Queries
Writing for Performance
Staging & Reusable Patterns
Working from a Requirement
SQL in a Team
Toward Production

"Key business metrics, customer and revenue analytics, and A/B testing -- building the bridge between raw analysis and business decision-making."

Included Modules
Key Business Metrics & KPIs
Customer Analytics Fundamentals
Revenue & Growth Analytics
A/B Testing & Experimentation
Connecting Analysis to Business Decisions

"Data privacy, bias and fairness, transparency, and real-world regulation (GDPR and beyond) -- culminating in an ethics review of a real or hypothetical data project."

Included Modules
Data Privacy Fundamentals
Bias & Fairness in Data & Algorithms
Transparency & Explainability
Data Protection Regulations (GDPR & Beyond)
Conducting a Data Ethics Review

Skills Gained at This Stage

  • Separating the real problem from a proposed solution
  • Eliciting and documenting requirements for a data solution
  • Writing optimised, production-oriented SQL
  • Framing analysis around a business decision
  • Applying data ethics and governance to real work

Professional Competencies

  • • Identify the Underlying Problem
  • • Elicit Functional Requirements
  • • SQL & Data Querying
  • • Business Analytics
  • • Data Ethics & Governance

Industry Tools

SQL (query profiling / EXPLAIN plans) Requirements & data-modelling documentation A BI platform (Power BI / Tableau)
The Project

Professional Data Intelligence Project

One real data problem taken end to end: define it, determine what a solution needs to do, query and explore a real dataset, and communicate the finding to a decision-maker. This is where the program's capabilities come together as integrated evidence -- not one more course.

  1. 1

    Discover

    A problem statement and a data-requirements summary.

  2. 2

    Define

    Success criteria, scope, and the questions to answer.

  3. 3

    Analyse

    A real dataset queried, cleaned and explored; findings.

  4. 4

    Communicate

    A decision-ready write-up and a portfolio entry.

Ready to Start?

This program is part of the Data Intelligence Architect — Emergence Pathway. You'll pick your starting cohort for Data Intelligence Professional Foundation — the first program in the pathway — on the next step.

Reserve Your Spot