Database Management Development Tutorials, Guides & Insights

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Step 1: Back Up the Tables

mysqldump -u root -p my_database users orders > backup_users_orders.sql

To export only the database schema without data, use the --no-data option:

mysqldump -u your_username -p --no-data your_database_name > schema_backup.sql

Ensure that the columns used in joins have indexes. This can significantly reduce the time taken to execute join operations.

Efficient SELECT statements can greatly improve query performance.

• Locks: MySQL automatically locks the necessary rows during transactions to prevent conflicts. However, you can manually acquire locks using the LOCK TABLES command if needed.
• Deadlocks: Occur when two or more transactions block each other. MySQL automatically detects deadlocks and rolls back one of the transactions.

LOCK TABLES accounts WRITE;

-- Perform operations here

UNLOCK TABLES;