Sql Programming Tutorials, Guides & Best Practices

For example, to create an index on the last_name column of a users table:

CREATE INDEX idx_last_name ON users(last_name);

mysqldump is a powerful command-line tool used to create logical backups of a MySQL database. It generates SQL statements to recreate the database schema and populate it with data.

To export an entire database, use the following command:

The Performance Dashboard includes reports on:

• Server Health: CPU, memory, and disk usage.
• Top Queries: The most time-consuming queries.
• InnoDB Metrics: Buffer pool size, read/write operations, and more.

LOCK TABLES accounts WRITE;

-- Perform operations here

UNLOCK TABLES;

• Keep transactions short to reduce the risk of deadlocks and improve performance.
• Use the appropriate isolation level based on your application’s consistency and performance requirements.
• Regularly monitor and optimize your queries to minimize lock contention.

After executing these queries, you'll have a clear understanding of the total size of your database and which table is consuming the most space. This information can help you make informed decisions about database optimization and storage planning.

If you're using a temporary session or a testing environment, you might want to clean up any test databases or tables. Always ensure you have backups before making changes to your database.