SQL Tutorial

1. High-performance database engine optimized for read-intensive applications.
2. Multi-threaded architecture that allows concurrent query processing.
3. Support for various data types, including numerical, string, date/time, and spatial data.
4. Comprehensive security features, including user authentication and access control.
5. Built-in support for transactions and ACID properties (Atomicity, Consistency, Isolation, and Durability).
6. Flexible replication and clustering capabilities for high availability and scalability.

MySQL is commonly used for applications that need to store and retrieve large amounts of data quickly and efficiently, such as e-commerce platforms, content management systems, and social networks. It is often used with other software tools and frameworks to build complex web applications.

• Creating a database: To create a new database in MySQL, use the "CREATE DATABASE" statement followed by the database name. For example, to create a database called "mydb," use the following command:

  
  CREATE DATABASE mydb;

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• Creating a table: After creating a database, you can create tables to store data. Use the "CREATE TABLE" statement followed by the table name and the columns. For example, to create a table called "users" with "id," "name," and "email," use:

  
  CREATE TABLE users (id INT PRIMARY KEY, name VARCHAR(100), email VARCHAR(100));

  In this example, "id" is the primary key, which serves as a unique identifier for each row.

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• Inserting data into a table: To insert data, use the "INSERT INTO" statement followed by the table name and the values. For example, to add a new user to the "users" table:

  
  INSERT INTO users (id, name, email) VALUES (1, 'John Doe', 'john@example.com');

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• Retrieving data from a table: Use the "SELECT" statement to get data from a table. For example, to retrieve all data from the "users" table:

  
  SELECT * FROM users;

  This command returns all rows and their values for each column.

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• Updating data in a table: To update data, use the "UPDATE" statement followed by the table name, the columns to update, and the new values. For example, to update the email address for the user with ID 1:

  
  UPDATE users SET email = 'newemail@example.com' WHERE id = 1;

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• Deleting data from a table: To delete data, use the "DELETE FROM" statement followed by the table name and the conditions for deletion. For example, to delete the user with ID 2:

  
  DELETE FROM users WHERE id = 2;