[MSSQL] 2016이하 버전에서 group_concat 기능 유사하게
SELECT order_no, m_id, STUFF( (SELECT ',' + regdate FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = 'schedule_tbl' ORDER BY regdate FOR XML PATH('')), 1, 1, '') AS regdates FROM schedule_tbl WHERE order_no IN('NW240313151600493301','NW240313151600490302')…