Sql Programming Tutorials, Guides & Best Practices

SHOW INDEX FROM table_name;

For example, to view indexes on the users table:

Performance Schema is enabled by default in MySQL 5.6 and later. To verify it's enabled, run the following query:

SHOW VARIABLES LIKE 'performance_schema';

• Basic knowledge of SQL and MySQL operations.
• Access to a MySQL server for executing sample queries.
• Familiarity with MySQL tools like EXPLAIN for query analysis.

Indexes are crucial for speeding up data retrieval operations. They work like a table of contents in a book, allowing the database to find data quickly without scanning the entire table.

• Query Caching: Enable if supported by your DBMS.

Combine tables to reduce joins in read-heavy systems. Use with care.