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SQL CREATE TABLE

10 min read

What is SQL CREATE TABLE?

In this lesson, we explore SQL CREATE TABLE. This is an important concept in SQL development that you will use frequently when building real-world projects. Understanding SQL CREATE TABLE will help you write cleaner, more efficient code.

Syntax & Usage

The syntax and usage patterns for SQL CREATE TABLE follow standard SQL conventions. Below you will see code examples that demonstrate the most common use cases. Try modifying these examples in your own editor to experiment with different approaches.

Example

Here is a practical example demonstrating SQL CREATE TABLE:

Tips & Best Practices

  • Always use parameterized queries to prevent SQL injection
  • Use indexes on columns that are frequently searched or joined
  • Normalize your database to reduce data redundancy
  • Use transactions for operations that must succeed or fail together

Summary

In this lesson you learned about SQL CREATE TABLE. Practice writing code to reinforce these concepts and move on to the next lesson when you feel comfortable.

Examples

Example
sql 
CREATE TABLE users (
    id INT AUTO_INCREMENT PRIMARY KEY,
    username VARCHAR(50) NOT NULL UNIQUE,
    email VARCHAR(100) NOT NULL,
    password_hash VARCHAR(255) NOT NULL,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    is_active BOOLEAN DEFAULT TRUE,
    CONSTRAINT chk_email CHECK (email LIKE '%@%.%')
);
Practice Yourself »

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