Use the column checkboxes to build your query. Header columns sets/unsets all columns
SELECT MANDT, BUKRS, GSART, NKOMPPOS, SKOMPNAM, SKOMPART, SKOMPGEN, XKOMPWERT, NUMKR, SKOMPPZ, SKOMPPZV, RPERFORM, RMODP, JGSARTGEN FROM TZN01