SQL Comments
Learn how to use SQL comments to document queries using single-line (–) and multi-line (/* … */) comments with examples.
SQL tutorial
SQL Aliases
Learn SQL aliases using AS to rename columns or tables for better readability. Step-by-step examples included.
SQL Basic Functions
Learn SQL basic functions like UPPER, LOWER, ROUND, NOW(), and DATE functions. Step-by-step examples for string, number, and date operations.
SQL LIMIT & FETCH FIRST
Learn SQL LIMIT and FETCH FIRST for row limiting. Step-by-step guide with syntax, examples, and practice queries for MySQL, PostgreSQL, and SQL Server.
SQL Operators
Learn SQL Operators in detail – Arithmetic, Comparison, Logical, and Bitwise operators with syntax and examples.
🚀 SQL Beginner Level Course
Start your SQL journey with RetailCoder.com! Learn SQL basics, data types, CRUD operations, SELECT, WHERE, ORDER BY, and more. Structured, beginner-friendly lessons.
SQL INSERT, UPDATE, DELETE – Modify Data in Tables
Learn SQL INSERT, UPDATE, and DELETE statements with examples. Step-by-step guide to add, change, and remove data in SQL tables. Beginner-friendly tutorial.
SQL CREATE, ALTER, DROP – Table & Database
Learn SQL CREATE, ALTER, and DROP statements to create and modify databases and tables. Step-by-step guide with examples for beginners.
SQL Data Types – Complete Beginner’s Guide
Learn all SQL data types with examples. Understand numeric, string, date/time, and special types in Oracle, MySQL, and SQL Server. Step-by-step beginner guide.
Introduction to SQL: Unlocking the Language of Databases
Get started with SQL (Structured Query Language). Learn its importance, key commands, real-life applications, and simple examples to manage databases effectively.