database cleanup Archives

WordPress SQL injection prevention with wpdb prepare placeholder code example

WordPress SQL Injection Prevention: $wpdb->prepare() Deep Dive

Every WordPress database query that concatenates user input without $wpdb->prepare() is a ticking time bomb. This guide covers every prepare() pattern in production code.

Varun Dubey · May 23, 2026 · 13 min read

Abstract geometric network sphere representing performance-optimized content moderation architecture

How To

How to Handle User-Generated Content Moderation in WordPress Without Killing Performance

Content moderation features add database queries to every page load. This guide covers the performance pitfalls of WordPress community moderation — N+1 queries, uncached block lists, per-item report checks — and how to fix them with proper caching, batching, and schema design.

Shashank Dubey · March 24, 2026 · 13 min read

Convert WordPress Database Tables from MyISAM to InnoDB - Performance, Crash Recovery, and Row-Level Locking

Database Optimization

How to Convert WordPress Database Tables from MyISAM to InnoDB

Convert your WordPress database from MyISAM to InnoDB for better performance, crash recovery, and row-level locking. Step-by-step guide with WP-CLI commands.

Varun Dubey · March 11, 2026 · 13 min read

How To

Redis vs Memcached for WordPress: Object Cache Setup and Benchmarks

Redis and Memcached both slash WordPress database queries by 80%. Here is how each works, real benchmarks from a WooCommerce store, and when to pick which one.

Shashank Dubey · March 6, 2026 · 13 min read

How To

11 WordPress Database Mistakes That Will Crash Your Site

Most WordPress crashes start in the database. After reviewing hundreds of sites, these are the 11 database mistakes that cause the most damage — and exactly how to fix each one.

Shashank Dubey · March 6, 2026 · 13 min read

WordPress Performance Audit Checklist: Find Why Your Site Loads Slowly

How To

WordPress Performance Audit Checklist: Find Exactly Why Your Site Loads Slowly

A systematic 10-step WordPress performance audit: measure baseline, diagnose TTFB, profile database queries, isolate slow plugins, audit render-blocking assets, optimize images, verify caching layers, check CDN coverage, clean the database, and evaluate hosting. Includes WP-CLI commands and SQL queries.

Shashank Dubey · March 2, 2026 · 13 min read

WordPress database maintenance guide showing OPTIMIZE TABLE commands and WP-CLI database tools

Performance

WordPress Database Optimization: OPTIMIZE TABLE, Repair, WP-CLI

A complete guide to WordPress database maintenance: OPTIMIZE TABLE for InnoDB and MyISAM, WP_ALLOW_REPAIR, WP-CLI db optimize, phpMyAdmin operations, monthly cron automation, and monitoring database health with SQL queries.

Varun Dubey · March 2, 2026 · 13 min read

Custom database indexes for WordPress wp_postmeta query optimization

Database Optimization

How to Add Custom Database Indexes to wp_postmeta in WordPress

Learn how to add custom database indexes to wp_postmeta in WordPress. This step-by-step guide covers diagnosing slow queries with EXPLAIN, adding meta_value indexes, automating with an mu-plugin, and benchmarking query performance improvements of 80% or more.

Varun Dubey · February 23, 2026 · 13 min read

Database Optimization

WordPress Transients Explained: How to Find and Delete Expired Transients

WordPress transients are one of the most misunderstood parts of the WordPress database. They are designed to be temporary cached data with an expiration … Read more

Varun Dubey · February 22, 2026 · 13 min read

How To

WordPress Post Revisions: How to Limit, Disable, and Clean Up Safely

Learn how to limit, disable, and clean up WordPress post revisions safely using wp-config.php constants, the wp_revisions_to_keep filter, WP-CLI commands, and bulk SQL queries. Reduce database bloat and improve performance.

Varun Dubey · February 16, 2026 · 13 min read

Tag: database cleanup

WordPress SQL Injection Prevention: $wpdb->prepare() Deep Dive

How to Handle User-Generated Content Moderation in WordPress Without Killing Performance

How to Convert WordPress Database Tables from MyISAM to InnoDB

Redis vs Memcached for WordPress: Object Cache Setup and Benchmarks

11 WordPress Database Mistakes That Will Crash Your Site

WordPress Performance Audit Checklist: Find Exactly Why Your Site Loads Slowly

WordPress Database Optimization: OPTIMIZE TABLE, Repair, WP-CLI

How to Add Custom Database Indexes to wp_postmeta in WordPress

WordPress Transients Explained: How to Find and Delete Expired Transients

WordPress Post Revisions: How to Limit, Disable, and Clean Up Safely