This guide describes how to use Embedded QUEL (EQUEL) with the following programming languages:

For the most part EQUEL is identical in syntax and functionality across all supported host programming languages. Therefore the documentation describes it independently of any one host language in the QUEL Reference Guide, which covers database statements, and in the Forms-based Application Development Tools User Guide, which covers forms statements. The host language-dependent details of its use are described in this Companion Guide.