oracle - How to Delete these Records in Netezza(Aginity) -


i written query identify duplicate records.

as below.

with dups   (select a_surveyid,     cast(e_responsedate date) e_responsedate,     e_lg_vm_survey_type_enum   transient..interim_nps_survey_mobile_results_20170909   group a_surveyid,     cast(e_responsedate date),     e_lg_vm_survey_type_enum  having count(*) > 1   ),   ranked   (select r.drs_record_id,     r.a_surveyid,     r.e_responsedate ,     row_number() on ( partition r.a_surveyid, cast(r.e_responsedate date),        r.e_lg_vm_survey_type_enum order substr(r.drs_record_id, instr(':', r.drs_record_id, 37) + 1, 14) desc,        substr(r.drs_record_id, instr(':', r.drs_record_id, 32) + 1, 4) asc ) dr   transient..interim_nps_survey_mobile_results_20170909 r   inner join dups   on r.a_surveyid                    = dups.a_surveyid   , cast(r.e_responsedate date) = dups.e_responsedate   , r.e_lg_vm_survey_type_enum     = dups.e_lg_vm_survey_type_enum   )  select * transient..interim_nps_survey_mobile_results_20170909 f inner join ranked on f.drs_record_id = ranked.drs_record_id ranked.dr     > 1

--

by using above query able retrieve records.(some 6000+ ).

but unable delete records.

can please me on this.

regards,

krish

you close. in last 5 lines, instead:

delete from transient..interim_nps_survey_mobile_results_2017090 drs_record_id in (     select drs_record_id ranked dr>1)

should work :)

btw: i'm pretty sure can done less code, not important...


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