SQL Fiddle

You want help with a tricky query, and you'd like to post a question to a Q/A site like StackOverflow. Build a representative database (schema and data) and post a link to it in your question. Unique URLs for each database (and each query) will be generated as you use the site; just copy and paste the URL that you want to share, and it will be available for anyone who wants to take a look. They will then be able to use your DDL and your SQL as a starting point for answering your question. When they have something they'd like to share with you, they can then send you a link back to their query.

Tags

collaboration mssql oraclesql postgresql sql sqllite