Database Connections Setup example 36

What this example teaches

Database Connections Setup

Output

Backend controller executes query against database and prints sanitized JSON records.

Line-by-line explanation

• Line 1 sets up the Database Connections Setup example: import { connectDatabase } from "./db";.
• Line 2 adds one required part of the working pattern: const db = await connectDatabase();.
• Line 3 exposes the output so you can verify the behavior: const results = await db.query("SELECT * FROM users;");.
• Line 4 exposes the output so you can verify the behavior: console.log(results);.

Why this example is useful

This example is useful because it isolates database connections setup without surrounding noise, so you can see the idea clearly.

Where it is used in real projects

Database Connections Setup appears in real Backend Development work when a feature needs a clear pattern that can be reviewed and changed safely.

Beginner variation

Change one label, value or condition in the Database Connections Setup example and run it again.

Advanced variation

Combine Database Connections Setup with validation, error handling or reusable structure.