}

Performance Index Page 1

PostgreSQL EXPLAIN ANALYZE: Fix Slow Queries with Proper Indexes (2026)

Master PostgreSQL EXPLAIN ANALYZE in 2026. Read query plans, create B-tree, partial, GIN, and expression indexes. Real case study: 30-second query reduced to 50ms step by step.

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SQLAlchemy Bulk Insert 2026: The Fastest Methods Compared (40x to 240x Speedup)

SQLAlchemy bulk insert performance guide 2026. ORM add_all vs bulk_save_objects vs Core execute_many (40x) vs PostgreSQL COPY via psycopg2 (240x). Real benchmarks with 100K rows. Async support included.

Performance Index Page 1

Javascript: Why you should use for() to iterate

If in your code you are using Array.forEach, check this blog post about the performance of javascript using for(). Learn how to improve the performance of the forEach in javascript.

Performance Index Page 1

JavaScript Links: # vs javascript:void(0)

In this article we explain the differences of using "#" or "javascript:void(0)" in the href attribute. We warn you that for modern javascript you should avoid using this values in the href since it's a bad practice.

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PostgreSQL Configuration Tuning

Learn how to tune PostgreSQL for optimal performance. Configure shared_buffers, work_mem, effective_cache_size and other key parameters.