Sql Programming Tutorials, Guides & Best Practices

To create an index on a single column, use the following syntax:

CREATE INDEX index_name ON table_name(column_name);

• Enable query caching in your MySQL configuration by setting query_cache_size and query_cache_type.
• Ensure your application logic allows for caching (i.e., queries are identical).

Subqueries can be inefficient as they may require multiple scans of the same table. Use joins or derived tables instead.

• Query Caching: Enable if supported by your DBMS.

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