Based on SQL-92, SQL+ syntax adds a series of special-purpose identifiers to widen its data query ability.
The functionality translates a SQL+ statement into an executable SPL script, which can then be optimized manually to further increase efficiency.
Both EsprocJDBC and EsprocODBC support the functionality. To use this feature, the former adds option sqlfirst=plus in url, and the latter set SqlFirst as plus in ODBC datasource tab.
Reopen dfx file
When a working local dfx file on the main screen is replaced, you can click this option to refresh it.