How can I optimize my Knex.js queries in Node.js?

How can I optimize my Knex.js queries in Node.js?

To optimize your Knex.js queries, consider using the following techniques: 1. Use select to fetch only necessary columns. 2. Utilize where clauses to filter data early. 3. Implement pagination with limit and offset. 4. Use indexes in your database for faster lookups.

What about using transactions? Are they helpful?

Yes, transactions can help maintain data integrity and improve performance when executing multiple related queries. Use knex.transaction() to group your queries.

How can I debug slow queries?

You can use the knex.debug() method to log the SQL queries being executed. Additionally, analyze the query execution time and check for any missing indexes.

Are there any specific performance tips for large datasets?

For large datasets, consider using batch processing, avoiding N+1 query problems, and leveraging database views or materialized views for complex queries.