CRUD Operations: Inserting, Reading, Updating, and Deleting Data

Intermediate

🔄 CRUD Operations in MySQL

CRUD operations form the foundation of interacting with MySQL databases.

➕ INSERT INTO

Add new records by specifying column values:

INSERT INTO users (name, email) VALUES ('Alice', 'alice@example.com');

🔍 SELECT

Retrieve data with optional clauses:

SELECT * FROM users WHERE name = 'Alice' ORDER BY id DESC LIMIT 1;
  • WHERE: Filter rows
  • ORDER BY: Sort results
  • LIMIT: Restrict number of rows

✏️ UPDATE

Modify existing records:

UPDATE users SET email = 'new@example.com' WHERE name = 'Alice';

⚠️ Always use WHERE to avoid unintentional bulk updates.

❌ DELETE FROM

Remove records safely:

DELETE FROM users WHERE name = 'Alice';

📦 Practicing these operations enables dynamic data handling essential for real-world applications, from user management to inventory systems.