📘 SQL Blog Series – 10 Days Roadmap

 Welcome to the SQL Blog Series! Over the next 10 days, we’ll explore SQL step by step, from the basics to advanced concepts. Below is the complete syllabus of what we’ll be covering.

SQL Learning Plan

Day 1 – Introduction to SQL & Series Roadmap

• What is SQL?

• Why SQL is important?

• Roadmap of the series.

Day 2 – SQL Basics

• Database & Tables.

• SQL Data Types.

• Basic commands (CREATE, DROP, USE).

Day 3 – CRUD Operations

• INSERT, SELECT, UPDATE, DELETE.

• Practical examples.

Day 4 – Filtering Data

• WHERE clause.

• Operators (=, >, <, LIKE, IN, BETWEEN).

• Sorting results with ORDER BY.

Day 5 – SQL Functions

• Aggregate functions (COUNT, SUM, AVG, MIN, MAX).

• String functions.

• Date & time functions.

Day 6 – Grouping Data

• GROUP BY.

• HAVING.

• Combining with aggregate functions.

Day 7 – SQL Joins

• INNER JOIN.

• LEFT JOIN, RIGHT JOIN, FULL JOIN.

• Real-world join queries.

Day 8 – Subqueries & Nested Queries

• Single-row subqueries.

• Multi-row subqueries.

• Correlated subqueries.

Day 9 – Keys & Constraints

• Primary Key, Foreign Key.

  
  

• Unique, Not Null, Default, Check.

• Importance of constraints in database design.

Day 10 – Advanced SQL

• Views & Indexes.

• Stored Procedures.

• Transactions (COMMIT, ROLLBACK).

• Introduction to Triggers.