SQL - how to create NOT NULL fields in a SELECT stmt

chgvar &sqlCmd ('select zoned(client_n,6,0) as client_n , max(case when client_act = ''S'' then ''S'' else '' '' end) as Field_1 from clientact group by client_n order by client_n')

RJSIMAGE/DOCSQL SQLSTM(&SQLCMD) OUTPUT(*OUTFILE)



Field_1 is null-capable.

Is it possible to run this SELECT and create Field_1 which does NOT allow nulls?

Or do I have to Create the table first with "Not Null" for the field?

I was hoping to do something like:

chgvar &sqlCmd ('select zoned(client_n,6,0) as client_n , max(case when client_act = ''S'' then ''S'' else '' '' end) as Field_1 NOT NULL from clientact group by client_n order by client_n')
^^^^^^^^
RJSIMAGE/DOCSQL SQLSTM(&SQLCMD) OUTPUT(*OUTFILE)

But this doesn't work.

Thanks

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