Indexes should be used when tables contain large amounts of data.
They are most effective on frequently searched columns.
Proper indexing improves query speed significantly.
Indexes are useful for columns used in WHERE conditions.
They are also helpful in JOIN and ORDER BY operations.
These queries benefit the most from indexing.
Indexes should be created on columns that are used repeatedly in queries.
This helps avoid full table scans.
Columns with high uniqueness perform well with indexes.
Examples include id, email, and username fields.
These columns return fewer rows.
Indexes are best used in read-heavy applications.
They improve performance for reports and search queries.
Using indexes wisely is a key database skill.