表数据

Oracle中将多行数据合并为一行_其他

将group by 后重复的数据拼接起来
SELECT t.job, wmsys.wm_concat(t.ename) as naems, count(1)

  FROM emp t

 GROUP BY t.job;

Oracle中将多行数据合并为一行_数据_02

将多行数据转为一行数据
select wm_concat(t.ename) names from emp t;

Oracle中将多行数据合并为一行_其他_03