Sqlite3

https://www.sqlite.org

• https://www.sqlite.org/lang.html

-https://ru.wikipedia.org/wiki/SQLite

https://ruseller.com/lessons.php?rub=28&id=2277 – Стартуем с SQLite3 – Основные команды

php

https://www.php.net/manual/ru/book.sqlite3.php
https://webformyself.com/forum/index.php/topic/966/ – Call to undefined function sqlite_open()