Use the column checkboxes to build your query. Header columns sets/unsets all columns
SELECT MANDT, DCT_PERNR, DCT_SEQNR, DCT_ROWID, BEGDA, ENDDA, DLNLL, DLNLW, DATLW, KENTLW, DLNOW, DATOW, KENTOW, TTSOW, DSTLL, DATLL, KENTLL, SKNOW, KENTSKNOW, DABOV, URBOV, VGBOV, EHBOV_UR, EHBOV_VG, DATBOV, KENTBOV, DVMBO, PVMBO, DSTAG, DLEVC, DTEVC, PSTAG, DLINC, DTINC FROM P2RN_AK