Oracle多行转单行create or replace type vars is table of varchar2(10000); create or replace function sumvarc (p_in in vars) return clob is v_out clob; begin for i in 1..p_in.count loop v_out := v_out || p_in(i); end loop; return v_out; end; --用法select user_name, sumvar(cast(multiset(select ","||function_name from user_funciotn where a.user_name=user_name order by function_name) as vars ) ) as aggr from user_funciotnOracle DBLink脚本Oracle可转换的类型赋值相关资讯 oracle