Release 10.1A: OpenEdge Data Management:
SQL Reference

Embedded SQL

In OpenEdge™ Release 10, the ESQL interface is being deprecated. It is provided to help OpenEdge customers transition to the use of other interfaces. For the long term, you should use ODBC or JDBC to access SQL data. These newer interfaces offer better performance and access by many development and reporting tools, as described in the following sections:

ESQL elements and statements in Backus Naur Form (BNF)
Compliance with industry standards