존재하지 않는 Object를 참조하는 동의어(Synonym) 삭제하는 SQL ,[오라클/ORACLE교육/오라클강좌/구로디지털단지오라클/실무오라클교육/재직자ORACLE교육]
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rem
rem Generate DDL to drop phantom synonyms in your database
rem Excludes SYS and SYSTEM users
rem
spool dr_ph_syn.sql
set pages 0 feed off
select 'drop '||decode(owner,'PUBLIC',' public ',null)||
'synonym '||
decode(owner,'PUBLIC',null,owner||'.')||
synonym_name||';'
from dba_synonyms s
where owner not in('SYSTEM','SYS')
and
db_link is null
and
not exists(select 1 from all_objects o
where object_type
in('TABLE','VIEW','SYNONYM',
'SEQUENCE','PROCEDURE',
'PACKAGE','FUNCTION')
and
s.table_owner=o.owner
and
s.table_name=o.object_name);
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