Mastering SQL

From Beginner to Advanced

Build a strong SQL foundation with a step-by-step, hands-on learning path. Start with database basics and progress to queries, joins, transactions, triggers, stored procedures, and practical database applications.

Beginner to advanced Hands-on SQL practice Real-world database skills
SQL course for database querying and data management by Codes With Pankaj
SQL Mastery

From Queries to Database Design

Learn to retrieve, transform, and manage data with SQL.

17 ModulesStructured curriculum
17 ModulesStructured learning
Hands-On SQLQuery practice
Database SkillsDesign and manage data
Flexible LearningLearn at your pace

Learn SQL Through Practice

Move from the basics of relational databases to advanced SQL programming concepts.

Database Fundamentals

Understand databases, tables, schemas, keys, constraints, and table design.

Query Data Efficiently

Write SELECT queries and use filtering, grouping, ordering, functions, and joins.

Reliable Transactions

Explore ACID properties, transaction control, isolation levels, and data integrity.

Advanced SQL

Learn views, triggers, stored procedures, and user-defined functions.

Database compatibility: SQL syntax varies across database systems. Some topics, including row limits, date functions, materialized views, and stored procedures, may require database-specific syntax.

Who Should Enroll?

A practical SQL learning path for people who work with data or want to build database skills.

  • Students and job seekers building technical skills
  • Data analysts and aspiring data professionals
  • Developers working with database-backed applications
  • Backend developers who want stronger query skills
  • Learners preparing for SQL interviews and projects
  • Anyone who wants to understand relational databases

Prerequisites & Foundations

No advanced programming background is required to begin learning SQL.

Basic Computer Skills

Comfort using a computer and installing or accessing learning tools is helpful.

Working with Data

Familiarity with tables, rows, and columns can help, but is not mandatory.

Curiosity & Practice

Be ready to write queries, inspect results, and practice concepts step by step.

SQL Course Content

Search the curriculum and expand a module to explore its topics.

17 topic groups
01Module 1: Introduction to SQLUnderstand SQL, its purpose, command categories, and how a query runs
  • What is SQL?
  • History and importance of SQL
  • SQL rules and syntax standards
  • SQL process: parsing, optimization, and execution
  • Types of SQL commands
  • DDL (Data Definition Language)
  • DML (Data Manipulation Language)
  • DCL (Data Control Language)
  • TCL (Transaction Control Language)
  • DQL (Data Query Language)
02Module 2: SQL DatabaseCreate, manage, and understand database structures
  • SQL CREATE DATABASE
  • SQL DROP DATABASE
  • SQL RENAME DATABASE
  • Select a database with USE
  • Database schema vs. instance
  • Metadata and system databases
03Module 3: SQL TablesCreate and modify tables and their structure
  • What is a table?
  • SQL CREATE TABLE statement
  • Create a table from another table (CREATE TABLE AS)
  • DROP TABLE vs. deleting rows
  • SQL RENAME TABLE
  • SQL TRUNCATE TABLE
  • Copy data with INSERT INTO … SELECT
  • Temporary tables (CREATE TEMP TABLE)
  • SQL ALTER TABLE
  • Add a column
  • Modify a column
  • Drop a column
  • Rename a column
04Module 4: SQL Keys & ConstraintsProtect data integrity with keys and constraints
  • Keys in SQL
  • Primary key
  • Foreign key
  • Composite key
  • Unique key
  • Alternate key
  • Constraints in SQL
  • NOT NULL constraint
  • DEFAULT constraint
  • UNIQUE constraint
  • PRIMARY KEY constraint
  • FOREIGN KEY constraint
  • CHECK constraint
  • Indexing considerations
  • Dropping constraints
05Module 5: SQL INSERTAdd records to database tables
  • SQL INSERT INTO statement
  • Insert a single row
  • Insert multiple rows
  • Insert using SELECT
  • Insert with default values
06Module 6: SQL UPDATEChange existing records safely and accurately
  • SQL UPDATE statement
  • Update a single column
  • Update multiple columns
  • UPDATE with WHERE clause
  • UPDATE JOIN: update using another table
  • UPDATE with date functions
07Module 7: SQL DELETERemove records and understand destructive operations
  • SQL DELETE statement
  • Delete selected rows
  • DELETE all rows: DELETE vs. TRUNCATE
  • Delete duplicate rows
  • Dropping a table and its data
  • Dropping a database: use caution and backups
  • Dropping a view
  • DELETE with JOIN
08Module 8: SQL SELECT QueriesRetrieve, filter, aggregate, and format data
  • SQL SELECT statement
  • SELECT UNIQUE and database-specific alternatives
  • SELECT DISTINCT
  • COUNT function
  • TOP and database-specific row limits
  • FIRST and LAST concepts
  • Random rows with ORDER BY RAND() or dialect equivalent
  • SELECT with IN
  • Select multiple columns
  • SELECT with dates
  • SUM, AVG, MIN, and MAX
  • NULL handling with IS NULL and IS NOT NULL
  • Column aliases with AS
09Module 9: SQL ClausesFilter, group, and summarize query results
  • WHERE clause
  • AND operator
  • OR operator
  • NOT operator
  • WITH: Common Table Expressions (CTEs)
  • AS: aliasing
  • HAVING clause
  • GROUP BY clause
  • Aggregate functions: COUNT, SUM, AVG, MIN, MAX
  • ROLLUP and CUBE grouping
10Module 10: SQL Ordering & LimitingSort results and control the number of returned rows
  • ORDER BY clause
  • Ascending order (ASC)
  • Descending order (DESC)
  • Random ordering
  • ORDER BY with LIMIT or dialect-specific equivalent
  • Sort by multiple columns
11Module 11: SQL JoinsCombine related data from one or more tables
  • Introduction to SQL JOIN
  • INNER JOIN
  • OUTER JOIN concepts
  • LEFT JOIN / LEFT OUTER JOIN
  • RIGHT JOIN / RIGHT OUTER JOIN
  • FULL JOIN / FULL OUTER JOIN
  • CROSS JOIN
  • SELF JOIN
  • Multi-table joins
  • JOIN vs. subquery
12Module 12: SQL Set OperationsCombine compatible query result sets
  • UNION
  • UNION ALL
  • INTERSECT
  • EXCEPT / MINUS (database dependent)
  • Set operators vs. joins
13Module 13: SQL FunctionsTransform text, numbers, dates, and values
  • String functions: CONCAT, UPPER, LOWER, SUBSTRING, TRIM, LENGTH
  • Numeric functions: ROUND, ABS, CEIL, FLOOR, MOD
  • Date and time functions: NOW, CURDATE, DATEDIFF, DATEADD, EXTRACT
  • Conditional functions: CASE, COALESCE, NULLIF
  • Conversion functions: CAST, CONVERT
14Module 14: SQL TransactionsManage reliable database changes
  • Introduction to transactions
  • ACID properties
  • Transaction control
  • COMMIT
  • ROLLBACK
  • SAVEPOINT
  • Isolation levels
  • Read Uncommitted
  • Read Committed
  • Repeatable Read
  • Serializable
15Module 15: SQL ViewsCreate reusable query-based views and manage access
  • Creating views
  • Updating data through views where supported
  • Dropping views
  • Materialized views in supported systems such as PostgreSQL and Oracle
  • Security and access control with views
16Module 16: SQL TriggersAutomate actions when database events occur
  • What are triggers?
  • Types of triggers
  • BEFORE INSERT / UPDATE / DELETE
  • AFTER INSERT / UPDATE / DELETE
  • INSTEAD OF triggers
  • Row-level vs. statement-level triggers
  • Trigger use cases: auditing, logging, and validation
17Module 17: Stored Procedures & FunctionsEncapsulate reusable database logic
  • What are stored procedures?
  • Create, execute, and drop procedures
  • User-defined functions: scalar and table-valued
  • Input and output parameters
  • Advantages and limitations

SQL syntax differs across MySQL, PostgreSQL, SQL Server, Oracle, and SQLite. Course examples should be adapted to the selected database system where needed.

Build Practical SQL Skills

A structured learning experience focused on concepts you can apply in projects and at work.

Complete SQL Coverage

Progress from database fundamentals to queries, joins, transactions, views, triggers, and stored procedures.

Hands-On Learning

Practice concepts with SQL examples, exercises, and real-world database scenarios.

Industry-Relevant Skills

Develop skills useful in analytics, backend development, data engineering, and database administration.

Multiple Database Concepts

Understand transferable SQL ideas while learning that specific syntax varies between database platforms.

Career Focus

Build a foundation for SQL interviews, practical assignments, and database-related job roles.

Flexible Learning

Work through the curriculum at a pace that suits your learning goals and practice schedule.

Meet Your Instructor, Pankaj Chouhan

I’m a software engineer and educator with 10+ years of experience, passionate about helping learners understand coding and problem-solving. My approach connects theory with practical examples and real-world application.

Our mission: Learn, Apply, Innovate. We aim to make learning structured, engaging, and career-focused.

Master SQL from Basics to Advanced

Build confidence with database design, query writing, and advanced SQL concepts. Book a free demo to discuss your goals and learning path.