Copying code into SQL statements

Instead of SELECT * or listing every column name, I'd like to put the
column names in a source member and "include" it in the main SQLRPGLE
compile. The source members are machine-generated; I'm doing this to
reduce the maintenance workload.

"from_src" is "a,b,c". "into_src" is ":a,:b,:c".

INCLUDE works with SELECT:
SELECT
INCLUDE from_src
INTO...

but the preprocessor won't accept
INTO
INCLUDE into_src
WHERE...

The error is SQL0104 and the preprocessor is looking for a comma or an
INTO. I have my INCFILE set correctly.

Using
FETCH NEXT FROM THIS_CURSOR INTO
into_src...

INCLUDE is tagged as a variable not found.

Am I missing something other than using dynamic SQL? It's just a reminder
of how incredibly productive DDS is!