Use the column checkboxes to build your query. Header columns sets/unsets all columns
SELECT MANDT, DATUM, UZEIT, DOCDT, INNUL, KPP00, OKATO, DOCTY, NYEAR, PERNR, DOCID, TAX_RATE, TAX_BASE, TAX_DEDUCT, TAX_REST, TAX_CALC, TAX_HOLD, DEBT_AGENT, DEBT_PAYER, DEBT_LEVY, TAX_TRANSF FROM T7RU2NDFL