This isn't tied to SQL. See https://www.ietf.org/archive/id/draft-ietf-httpbis-safe-method-w-body-02.html#name-examples https://www.ietf.org/archive/id/draft-i

This isn't tied to SQL. See https://www.ietf.org/archive/id/draft-ietf-httpbis-safe-method-w-body-02.html#name-examples https://www.ietf.org/archive/id/draft-ietf-httpbis-safe-meth... > The non-normative examples in this section make use of a simple, hypothetical plain-text based query syntax based on SQL with results returned as comma-separated values. This is done for illustration purposes only. Implementations are free to use any format they wish on both the request and response.