Run SQL Queries
You are tasked with running SQL queries against the WordPress development database.
Prerequisites
- Database credentials are stored in
CLAUDE.local.mdunder "Database Access" - Docker compose services must be running
- Commands must be run from the docker-compose project directory
Command Pattern
docker compose exec mariadb mysql -u<USER> -p<PASSWORD> <DATABASE> -e "YOUR_SQL_HERE"
Refer to CLAUDE.local.md for the actual credentials and connection details.
Examples
Show all tables
docker compose exec mariadb mysql -u<USER> -p<PASSWORD> <DATABASE> -e "SHOW TABLES;"
Query Simple History events
docker compose exec mariadb mysql -u<USER> -p<PASSWORD> <DATABASE> -e "SELECT * FROM wp_simple_history ORDER BY id DESC LIMIT 10;"
Describe a table structure
docker compose exec mariadb mysql -u<USER> -p<PASSWORD> <DATABASE> -e "DESCRIBE wp_simple_history;"
Count records
docker compose exec mariadb mysql -u<USER> -p<PASSWORD> <DATABASE> -e "SELECT COUNT(*) FROM wp_posts;"
Table Prefixes
The database contains multiple WordPress installations with different prefixes:
| Prefix | Installation |
|--------|--------------|
| wp_ | Main install (wordpress_mariadb) |
| wp_nightly_ | Nightly build |
| wp_6_0_ to wp_6_6_ | Version-specific installs |
| wp_multisite_ | Multisite install |
| wp_php74_ | PHP 7.4 install |
| wp_subfolder_ | Subfolder install |
Simple History Tables
The main Simple History tables (using wp_ prefix):
wp_simple_history- Main events tablewp_simple_history_contexts- Event context/metadata
Instructions
- Read credentials from
CLAUDE.local.md - Ask the user what SQL query they want to run (if not specified)
- Run the query using the command pattern above
- Display the results
- Offer to run follow-up queries if needed
Notes
- For complex queries, consider using
\Gat the end for vertical output - Be careful with UPDATE/DELETE queries - always confirm with user first