Insert the record in one table from another table with some criteria in oracle -


i need insert record 1 table table exact replica of other table ,condition putting when same record (for condition match) coming table update existing record , when brand new record come insert record.

i have written query below please correct me if possible.

insert  temp1   (b,c,d,provider_id,national_provider_identifier,taxonimy_code,f,g,h)  select  w.b,w.c,w.d,w.provider_id,w.national_provider_identifier,w.taxonimy_code,w.f,w.g,w.h temp2 w left join  temp1 on( a.provider_id = w.provider_id , a.national_provider_identifier = w.national_provider_identifier , a.taxonomy_code = w.taxonomy_code)  w.source_id = 'cosmos'

it's still bit unclear me, sound want using merge statement.

if so, statement (hoping understood data model)

merge temp1 using (   select b,c,d,provider_id,national_provider_identifier,taxonimy_code,f,g,h   temp2   source_id = 'cosmos' ) w on (a.provider_id = w.provider_id ,      a.national_provider_identifier = w.national_provider_identifier ,     a.taxonomy_code = w.taxonomy_code ) when matched   update set a.b = w.b,              a.c = w.c,              a.d = w.d,              a.f = w.f,              a.g = w.g,              a.h = w.h when not matched   insert (a.b,a.c,a.d,a.provider_id,a.national_provider_identifier,a.taxonimy_code,a.f,a.g,a.h)   values (w.b,w.c,w.d,w.provider_id,w.national_provider_identifier,w.taxonimy_code,w.f,w.g,w.h);

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