Get All Your Database Data With One SQL Query

Description:
Learn how to retrieve all data from a database table using SQL and PostgreSQL!

In this beginner-friendly SQL tutorial, you'll learn how to use `SELECT *` to display every column and every row from a table. We'll use PostgreSQL and the Northwind database to practice real SQL queries.

**In this tutorial, you'll learn:**
- How to retrieve all data from a table using `SELECT *`
- How to use the `SELECT` and `FROM` keywords
- How to query the `customers`, `employees`, and `products` tables
- Why SQL keywords are often written in uppercase
- How and why to use semicolons in SQL statements
- How to write and execute your first SQL queries in pgAdmin

**Practice SQL Queries:**

```sql
SELECT *
FROM customers;

SELECT *
FROM employees;

SELECT *
FROM products;
```

By the end of this lesson, you'll understand the basic structure of a SQL query and be ready to select specific columns in the next tutorial.

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