Category: 9. Managing Database Structure

Introduction Imagine your database is like a big school building.Inside the building, each table is like a classroom filled with students (data). Now… what if a classroom is no longer needed?Maybe no classes happen there, maybe it’s broken, or maybe it was created by mistake. In MySQL, you have a SUPERPOWER called DROP TABLE. It lets you remove the entire classroom from the database —POOF! Gone!Not just the students… but the whole room disappears. But with great power comes great responsibility — because once you drop a table, it’s gone forever (unless you have a backup). Let’s learn this magical…

You built a LEGO house (your database table).Later, you decide: To do all this, MySQL gives you a magic tool called: ALTER TABLE 1. Adding a New Column Just like adding a new LEGO brick. ➤ Syntax: ➤ Example: Add a new column email to students table: ➤ Add column at a specific position: 2. Removing (Dropping) a Column Removing a brick from your LEGO model. ➤ Syntax: ➤ Example: Remove middle_name column: 3. Modifying/Changing a Column Make the LEGO brick bigger, smaller, or change its type. ➤ Syntax: ➤ Example: Increase name size: ➤ Rename a column: 4. Adding…

Imagine you’re building a Lego house. Before you start putting Lego pieces together, you need a base plate—a clean, flat surface where your house will stand.In MySQL, that base plate is called a table. A table is where your data lives. It’s like a grid with rows and columns—just like your school timetable! Today, we’ll learn how to create tables using the SQL command: CREATE TABLE Let’s break it down in a super simple way. 1. What Is a Table? (Explained Like You’re 10) Think of a table like a notebook. For example, if you make a notebook page about…