Sql Programming Tutorials, Guides & Best Practices

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To export an entire database, use the following command:

mysqldump -u your_username -p your_database_name > backup.sql

Use LIMIT to restrict the number of rows returned by a query, especially for large datasets.

SELECT first_name, last_name FROM users LIMIT 10;

• A basic understanding of SQL and MySQL operations.
• Access to a MySQL server for executing sample queries.

A transaction is a sequence of one or more SQL operations that are executed as a single unit of work. Transactions have four key properties, often referred to as ACID:

Enter your password when prompted. Once logged in, you'll be able to execute SQL commands to query the database.

To view the size of a specific database, you'll query the information_schema.tables table. This table contains metadata about all the tables in your databases.