Use for questions about one or multiple Structured Query Language (SQL) flavours.
In order to get the most helpful answer your question should include the following:
- a specific SQL flavor tag (e.g. for MySQL, PostgreSQL, Oracle, MS SQL Server, IBM DB2)
- table definitions
- sample data if needed
- expected result when query results are not what you expect
For general questions that are not targeting a specific SQL flavor, questions and answers should use ISO/IEC standard SQL.