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次のクエリを翻訳するにはどうすればよいですか。
select col1,col2,col3 from table1 minus select col1,col2,col3 from table2
結合句を使用するクエリに?
select t1.col1, t1.col2, t1.col3 from table1 t1 left join table2 t2 on t1.col1 = t2.col1 and t1.col2 = t2.col2 and t1.col3 = t2.col3 where t2.col1 is null
SQLフィドル