Oracle同一字段用逗號分隔(列轉行)

--分組加排序，數據量大時結果會比較慢
SELECT listagg(t.ename,',') WITHIN GROUP(ORDER BY t.sal) FROM scott.emp t;
SELECT listagg(t.ename,';') WITHIN GROUP(ORDER BY t.sal) FROM scott.emp t;

--查詢結果為CLOB
SELECT wm_concat_11g(t.ename) FROM scott.emp t ORDER BY t.sal;

來自 <https://www.cnblogs.com/henuyuxiang/p/12762299.html>
區別：
listagg WITHIN GROUP 和 wm_concat_11g
前者可以指定分隔符（逗號或者封號或者……）