… One of the first result in Google was sqlfiddle [2] page. At first sight website looks very simple. And in reality – it is. On the left side you have to write DDL statements, and on the right side, you may use created schema by sending some queries. For now, service offers many different databases:
- MySQL (a few versions)
- Oracle
- PostgreSQL (a few versions)
- SQLite
- MS SQL Server (a few versions)
Reference: Creating SQL database `on the fly`