Use the column checkboxes to build your query. Header columns sets/unsets all columns
SELECT MANDT, PERNR, SUBTY, OBJPS, SPRPS, ENDDA, BEGDA, SEQNR, AEDTM, UNAME, HISTO, ITXEX, REFEX, ORDEX, ITBLD, PREAS, FLAG1, FLAG2, FLAG3, FLAG4, RESE1, RESE2, GRPVL, ASSIGN_TYPE, RECEIV_ORG, NEW_POSITION, DECSN_REF_NO, DECSN_DATE, DECSN_TXT, DECSN_APPVR, PLANS, PKPRZ FROM PA3356