create or replace type wmsys.wm_concat_impl wrapped 
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/
exec wmsys.wm$execSQL('grant execute on wm_concat_impl to public')  ;
create or replace function wmsys.wm_concat wrapped 
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H/E=

/
exec wmsys.wm$execSQL('revoke all on wm_concat from public')  ;
exec wmsys.wm$execSQL('grant execute on wm_concat to public')  ;
create or replace public synonym wm_concat for wmsys.wm_concat  ;