oracle wm_concat 列转行 逗号分隔

[sql]

复制代码 代码如下:

create table wlbtest1(

username varchar2(2),

deptid number

);

create table wlbtest2(

deptname varchar2(10),

deptid number

);

insert into wlbtest1 values (‘a’, 1);

insert into wlbtest1 values (‘b’, 1);

insert into wlbtest1 values (‘c’, 1);

insert into wlbtest1 values (‘d’, 2);

insert into wlbtest1 values (‘e’, 2);

insert into wlbtest1 values (‘f’, 2);

insert into wlbtest2 values ( ‘部门1’ ,1);

insert into wlbtest2 values ( ‘部门2’, 2);

select deptid, wm_concat(username) username,’部门’||deptid deptname from wlbtest1 group by deptid

 

执行结果：