摘要： 建立表空间及用户 create temporary tablespace nhgl_temp tempfile 'E:\oracledata\nhgl\nhgl_temp.dbf' size 50m autoextend on next 50m extent management local; cr 阅读全文

摘要： select t.* from TEST23 T; select t.id,listagg(t.name,',')within group(order by t.id) name from TEST23 t group by t.id 阅读全文