Use the column checkboxes to build your query. Header columns sets/unsets all columns
SELECT MANDT, SSOUR, VRSIO, SPMON, SPTAG, SPWOC, SPBUP, VKORG, KUNNR, WETTB, PERIV, VWDAT, STWAE, BASME, AENETWR, FAENETWR, AEMENGE, FAEMENGE, UMNETWR, FUMNETWR, VBELN FROM S997