The SQL compatibility mode (which by default is SQL 89, level 1 can be upgraded to SQL-92 under File -> Options -> Object Designers -> SQL Server Compatible Syntax (ANSI 92):
Changing the option with Visual Basic for Application
With VBA, it is possible to set this options like so:
setOption "ANSI Query Mode", 1
setOption is defined in the Application object. Because this object is the default object, it does not need to be specified.