Oracle ->> 行转列， 列转行

* FROM (SELECT job, sum(decode(deptno,10,sal)) DEPT10, sum(decode(deptno,20,sal)) DEPT20, sum(decode(deptno,30,sal)) DEPT30, sum(decode(deptno,40,sal)) DEPT40 FROM scott.emp GROUP BY job) ORDER BY 1; JOB DEPT10 DEPT20 DEPT30 DEPT40 --------- ---------- ---------- ---------- ---------- ANALYST 6000 CLERK 1300 1900 950 MANAGER 2450 2975 2850 PRESIDENT 5000 SALESMAN 5600

 

Oracle ->> 行转列， 列转行

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