zOs/SQL/COLDIS

select *
    FROM SYSIBM.SYSCOLdist
    where tbowner = 'DGDB9998' and tbname = 'TWK001A'
;
select *
    FROM SYSIBM.SYSCOLumns
    where tbcreator = 'DGDB9998' and tbname = 'TWK001A'