SQL Language reference for PxPlus and past versions of ProvideX.
SQL Functions / ExpressionsString, Numeric, Time and Date and System functions
https://manual.pvxplus.com/PXPLUS/odbc/using_odbc_driver/scalar_functions.htm
Data Types
https://manual.pvxplus.com/PXPLUS/odbc/using_odbc_driver/example_sql.htm