1. SELECT * FROM A_DB.A_Table WHERE A_Column_1 not in (select B_Column_1 from B_DB.B_Table) 2. SELECT * FROM A_DB.A_Table ta WHERE not exists ( select B_Column_1, B_Column_2 from B_DB.B_Table tb where ta.A_Column_1 = tb.B_Column_1 and ta.A_Column_2 = tb.B_Column_2 ) http://oskardevelopers.blogspot.com/2015/10/it-database-sql_13.html [Database] [MSSQL] 두 테이블을 비교하여 일치하지 않는 항목 추출 (서로 다른 항목 추출) * A_..