Learn how to combine multiple conditions in SQL using AND, OR, and NOT operators. Filter data with precision using logical operators with practical examples and exercises.
Tag: SQL for Beginners
SQL WHERE — How to Filter Rows with Conditions
The WHERE clause filters rows based on specific conditions. Learn how to use comparison operators, filter text and numbers, combine conditions, and avoid common WHERE mistakes in this beginner SQL tutorial.
SQL SELECT DISTINCT — How to Remove Duplicate Rows from Results
The SELECT DISTINCT statement removes duplicate values from your query results. Learn how to get unique values from one or multiple columns with practical SQL examples and exercises.
SQL SELECT — How to Retrieve Data from a Database Table
The SELECT statement is the most used SQL command. Learn how to retrieve specific columns, all columns, and formatted data from database tables with practical examples and exercises.
SQL Syntax — Rules, Structure and How to Write SQL Statements
Learn SQL syntax rules, statement structure, and formatting best practices. This beginner-friendly chapter covers how SQL statements are written, SQL keywords, clauses, semicolons, case sensitivity, and common syntax mistakes to avoid.
SQL Quiz — Test Your Knowledge with 75 Interactive Questions
CHAPTER 31 of 31 SQL Tutorial — Free Course on Neotech Navigators SQL Quiz — Test Your Knowledge is the final chapter of our free SQL tutorial course. This interactive quiz contains 75 questions covering everything from SELECT and WHERE to JOINs, subqueries, and window functions. Each attempt randomly picks 20 questions, gives you 30 […]
SQL Introduction — What Is SQL and Why Should You Learn It?
SQL stands for Structured Query Language — the standard language for working with databases. This beginner-friendly chapter covers what SQL is, why it matters in 2026, and walks you through your very first SQL query with examples.