SQL & Tableau: Advanced Business Intelligence

SQL & Tableau: Advanced Business Intelligence – taught by Himanshu Kaushik – is a deep‑dive Udemy course that lets you master the data‑pipeline from relational databases to executive‑level visual storytelling. Updated July 2026, this free‑coupon‑enabled training answers searches like “free SQL course”, “SQL & Tableau Udemy course”, and “learn business intelligence online”. It equips you with hands‑on SQL query mastery, Tableau dashboard creation, and a portfolio‑ready certification that employers recognize. Whether you’re moving beyond Excel or aiming for a BI analyst role, the course delivers practical, job‑ready skills in one comprehensive package.

What You'll Learn

• Build complex SQL queries that extract, transform, and analyze massive relational datasets.
• Master inner, outer, and self‑joins, as well as subqueries, to combine data across multiple tables.
• Learn advanced window functions (ROW_NUMBER, RANK, LAG, LEAD) for time‑series and ranking analyses.
• Understand data preparation techniques that clean and shape raw data for visual analytics.
• Create interactive Tableau dashboards that visualize key business KPIs with filters, parameters, and actions.
• Implement visual storytelling methods that translate SQL‑driven insights into executive‑ready presentations.
• Apply best practices for publishing Tableau workbooks to Tableau Server or Tableau Public.
• Analyze real‑world case studies that connect database architecture to strategic decision‑making.

Course Details

• Instructor: Himanshu Kaushik
• Level: All Levels (beginner‑friendly, with advanced content)
• Language: English (en‑US)
• Certificate: Yes, upon completion
• Includes: Lifetime access to all video lectures, mobile‑friendly playback, downloadable resources (SQL scripts and Tableau workbook files)

What This Course Covers

Advanced SQL Techniques

• Writing multi‑table SELECT statements with complex conditions.
• Using CTEs (Common Table Expressions) to simplify nested queries.
• Optimizing query performance with indexes and execution plans.

SQL Joins & Subqueries

• Constructing inner, left, right, and full outer joins for data integration.
• Embedding subqueries in SELECT, FROM, and WHERE clauses.
• Handling many‑to‑many relationships with bridge tables.

Window Functions & Analytics

• Applying ROW_NUMBER, RANK, DENSE_RANK for ranking results.
• Leveraging LAG, LEAD, and FIRST_VALUE for comparative analysis.
• Calculating running totals, moving averages, and cumulative sums.

Tableau Dashboard Design

• Connecting Tableau to MySQL and other relational sources.
• Building calculated fields, parameters, and dynamic filters.
• Designing responsive layouts for desktop and mobile viewers.

Data Storytelling & Presentation

• Translating raw query results into compelling visual narratives.
• Using color theory, typography, and layout to highlight insights.
• Preparing dashboards for executive review and stakeholder buy‑in.

Portfolio & Certification Project

• Developing a end‑to‑end BI project from data extraction to dashboard publishing.
• Compiling a professional portfolio showcasing SQL scripts and Tableau workbooks.
• Completing the course assessment to earn a Udemy‑verified certificate.

Who Should Take This Course

• Aspiring data analysts seeking to move beyond spreadsheet reporting.
• Business intelligence professionals who need advanced SQL and Tableau skills.
• Corporate employees tasked with building internal dashboards for executives.
• Recent graduates aiming for a BI analyst or data‑engineer entry‑level role.
• Self‑learners who prefer a structured, hands‑on online training environment.

Prerequisites

• No prior experience needed — this course is beginner‑friendly.
• Basic familiarity with relational database concepts (tables, rows, columns) is helpful but not required.
• Recommended: a personal computer with internet access and the ability to install MySQL Community Edition and Tableau Public (both free).

Why Enroll in This Course

Enroll now to take advantage of a free coupon that offers 100 % off for a limited time. The course delivers a complete end‑to‑end BI workflow, something many fragmented tutorials lack. With lifetime access, you can learn at your own pace while building a portfolio that differentiates you in the competitive data‑analytics job market.

Course Highlights

• Lifetime access to all video lessons and resources, allowing self‑paced learning.
• Hands‑on projects that produce a ready‑to‑show portfolio of SQL scripts and Tableau dashboards.
• Certificate of completion that can be added to LinkedIn and resumes.
• Mobile‑friendly content enables study on smartphones and tablets.
• Downloadable SQL and Tableau files for offline practice and reference.
• 30‑day money‑back guarantee for risk‑free enrollment (if you choose the paid version later).

Frequently Asked Questions

Q: Is this course really free?
A: Yes. By applying the available free coupon, you can enroll at 100 % off. The coupon provides full access to all course materials without any hidden fees.

Q: What will I learn in this SQL & Tableau course?
A: You will learn to write advanced SQL queries, master joins, subqueries, and window functions, and design interactive Tableau dashboards that turn raw data into actionable business insights.

Q: Do I get a certificate after completing this course?
A: Absolutely. Upon finishing all modules and the final project, Udemy issues a certificate of completion that you can share on professional networks.

Q: Is this course suitable for beginners?
A: Yes. The instructor starts with fundamental concepts before progressing to advanced topics, making it appropriate for learners with little or no prior SQL or Tableau experience.

Q: How long do I have to enroll for free?
A: The free coupon is available for a limited time; we recommend enrolling as soon as possible to secure the 100 % discount before the offer expires.

Final Thoughts

SQL & Tableau: Advanced Business Intelligence equips beginners and seasoned analysts alike with the full skill set needed to extract, analyze, and visualize data at an enterprise level. If you aim to become a high‑value BI professional, this Udemy course provides the tools, projects, and certification to launch your career. Start your learning journey today and transform raw data into strategic insight.