标题: 循环同义词链错误：ORA-01775: looping chain of synonyms [打印本页] 作者: 郑全 时间: 2021-9-8 01:24 标题: 循环同义词链错误：ORA-01775: looping chain of synonyms 在工作中，有时会遇到 ORA-01775: looping chain of synonyms的错误，你发现同义词中，没有其他叫这个名字的同义词，但实际是有的，怎么找出这个存在的循环同义词呢：
比如
SQL> CREATE OR REPLACE PACKAGE BODY sys.dbms_logmnr_internal wrapped
...
766 /
Warning: Package Body created with compilation errors.
使用以下语句，可以查找到同义词：
select owner,object_name,object_id,object_type,status
from dba_objects
where object_id in (
select p_OBJ#
from DEPENDENCY$
where d_obj# = (select object_id
from dba_objects
where object_name like 'DBMS_LOGMNR_INTERNAL' and object_type = 'PACKAGE BODY'
)
);
HCKW-0018: OBJECT name clashes with SCHEMA name <<<<
Schema=SYSTEM Object=PUBLIC.SYSTEM (SYNONYM)
There is a public synonym with name SYSTEM
Drop the public synonym SYSTEM and repeat the activity.