Oracle分組查詢2-CUBE

Oracle分組查詢2——cube     和rullup一樣  只是結果維度更多了！ eg.按工齡、部門、職務 從大到小 查詢工資和 select to_char(b.hiredate) as 上班日期,a.dname as 部門,b.job as 職務,sum(b.sal) sum_sal from dept a, emp b where a.deptno=b.deptno group byc

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