SQL Introduction & RDBMS

What is SQL and how do relational databases organize data?

SQL (Structured Query Language) is the standard language for accessing and manipulating databases. SQL became a standard of the American National Standards Institute (ANSI) in 1986.

What Can SQL Do?

1Execute queries against a database.

2Retrieve data from a database.

3Insert new records in a database.

4Update records in a database.

5Delete records from a database.

6Create new databases, tables, and views.

A Basic SQL Query

Try It Yourself »

-- Retrieve all customers from London
SELECT CustomerName, City, Country 
FROM Customers 
WHERE City = 'London';

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Test Yourself With Exercise

+15 XP

What does SQL stand for?

Next: SQL SELECT & SELECT DISTINCT »