Leertraject Data Analyst with SQL - Online-Opleiding met certificaat

Data Analyst with SQL

Beginner

4.2

11 reviews

41 Learners

A comprehensive beginner-level learning track designed for aspiring data analysts and junior data professionals. This track introduces the core concep…

148

Chapters

Learning hours

202

Assignments

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Shareable Certificate

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Wat je zult leren

Understand the basics of data, the data lifecycle, and the role of a data analyst

Apply filtering, sorting, and aggregation techniques to analyze datasets

Build analytical reports and dashboards using SQL and BI tools

Grasp the structure and organization of relational databases

Combine data from multiple tables using SQL joins

Write and execute basic SQL queries to retrieve and manipulate data

Clean and transform data using essential SQL functions

Learning track content

What is Data?

Types of Data

The Data Lifecycle

Introduction to Data Analysis

Why Data Analysis Matters

The Data Analysis Process

Key Roles in Data Analysis

The Data Analyst: Responsibilities and Skills

Tools and Technologies for Data Analysis

Data-Driven Decision Making

Retrieving Individual Columns

Retrieving Multiple Columns

Retrieving All Columns

Retrieving Distinct Rows

Limiting Results

Challenge: Find the Population of the Countries

Challenge: Find All Countries

Challenge: Find All Countries With Their IDs

Challenge: Find Country Capitals

Challenge: Find the Regions in Which All Countries Are Located

Sorting Data

Challenge: Population Sort

Sorting by Multiple Columns

Challenge: Dual-Sort Query

Specifying Sort Direction

Challenge: Sort the Countries by Region and Capital

Challenge: Sort Capitals in Descending Order

Challenge: Sort Countries in Ascending Order

Challenge: Find Countries, Their IDs, and Their Populations

Challenge: Find Countries, IDs, Populations, Regions, and Sort Them

Challenge: Find All Continents and Sort Them in Ascending Order

Using the WHERE Clause

Challenge: North America Population Sort

The WHERE Clause Operators

Challenge: Population Threshold Query

Checking for a Range of Values

Checking for NO Value

Using the AND Operator

Challenge: Europe Region Sort

Using the OR operator

Challenge: America Regions Filter

Using the NOT Operator

Challenge: Non-Europe Capitals Sort

The AVG() Function

Challenge: Surface Area Selection

The COUNT() Function

Challenge: Continental Count

The MAX() Function

The MIN() Function

Challenge: Large Surface Area Average

The SUM() Function

GROUP BY-Clausule

Volgorde van Instructies

Uitdaging: Totale Reistijd voor Elke Metrolijn

Uitdaging: Gemiddelde Cijfer van de Student

Uitdaging: Zoeken naar de Beste Wiskundestudenten

HAVING-Clausule

Meerdere Aggregatiefuncties in de Query

Complexere Filtering

Introduction to Subqueries

Subqueries in SELECT and WHERE Clauses

Challenge: Top Customers by Order Count

Challenge: Products Never Ordered

Challenge: Customers from Specific Cities with Orders

Challenge: Most Popular Product Category

Non-correlated vs Correlated Subqueries

Subqueries in FROM Clauses

Challenge: Recently Hired Employees

Challenge: Departments with Above-average Salaries

Challenge: Employees Without Recent Salary Increase

Challenge: Highest Paid Employee per Department

Subqueries for Aggregation and Filtering

Subqueries for Existence and Non-existence

Challenge: Most Active Members

Challenge: Books Borrowed in the Last Month

Challenge: Members with No Borrowings

Challenge: Most Popular Genre

Understanding INNER JOIN

Challenge: Find Customers with Orders

Exploring LEFT JOIN

Challenge: List All Customers and Their Orders

RIGHT and FULL OUTER JOIN in Action

Challenge: Orders Without Customers

Joining More Than Two Tables

Challenge: Employee Project Assignments

Self-Joins for Hierarchical Data

Challenge: Manager-Employee Relationships

Advanced Join Conditions

Challenge: Complex Assignment Matching

Challenge: Employees Without Projects

Dealing with NULLs in Joins

Join Performance and Optimization

Challenge: Optimize a Join Query

Real-World Join Scenarios

Challenge: Student Performance Dashboard

Introduction to String Functions

Challenge: Standardize Customer Names

Challenge: Extract Email Domains

Advanced String Manipulation

Challenge: Mask Sensitive Information

Challenge: Clean Up City Names

Working with Dates and Times

Challenge: Calculate Order Age

Challenge: Find Late Deliveries

Advanced Date and Time Calculations

Challenge: Monthly Order Summary

Challenge: Predict Delivery Dates

Introduction to Numeric Functions

Challenge: Calculate Discounted Prices

Challenge: Find Low Stock Products

Advanced Numeric Operations

Challenge: Analyze Price Distribution

Challenge: Calculate Inventory Value

Introduction to Logical Functions

Challenge: Categorize Transactions

Challenge: Handle Missing Payment Methods

Advanced Logical Expressions

Challenge: Flag Suspicious Transactions

Challenge: Summarize Transaction Status

Understanding Null Functions

Challenge: Assign Default Bonuses

Challenge: Find Employees Without Managers

Advanced Null Handling

Challenge: Calculate Average Bonus

Challenge: Prevent Division by Zero

Introduction to JSON Functions

Challenge: Extract User Interests

Challenge: Find Users by City

Advanced JSON Manipulation

Challenge: Update User Age

Multi-level Aggregations for Business Reports

Window Functions: ROW_NUMBER, RANK, DENSE_RANK

Running Totals and Moving Averages

Period-over-Period Comparisons (MoM, YoY)

Cohort Analysis

Funnel Analysis with CASE WHEN + SUM

Customer Segmentation (RFM-style Logic)

Top-N per Group Reports

Pivot-Style Reports with CASE WHEN

KPI Calculations: Conversion, Retention, Churn, ARPU

Multi-step Analytical Pipelines with CTEs

Data Quality Checks as Analytical Queries

Advanced Window Functions: NTILE, PERCENT_RANK, CUME_DIST

Time Series Analysis: Gaps and Islands

Churn Prediction with SQL

Retention Curve Analysis

Dynamic Date Bucketing for Reports

Combining Multiple Analytical Techniques

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Direct toegang tot 500+ cursussen

Vertrouwd door Werknemers van Toonaangevende Bedrijven
en Studenten van Topuniversiteiten