Your iPhone might be hoarding space-wasting duplicates. Here's how to find and delete them.

The Photos app ended up being the fix I was searching for. On iOS 16 or newer, a Duplicates album gathers identical shots so you can merge or delete them in batches. I opened it out of curiosity ...

Review schema (DESCRIBE in MySQL, sp_help / INFORMATION_SCHEMA in SQL Server). Check relationships between tables (PK–FK, constraints).