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Netezza Performance Tuning Pdf Download

 
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MessagePosté le: Ven 28 Oct - 18:29 (2016)    Sujet du message: Netezza Performance Tuning Pdf Download Répondre en citant




Netezza Performance Tuning Pdf Download > shorl.com/vubojubypivo









Netezza Performance Tuning Pdf Download

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To,,break,,it,,down,,,a,,MOD,,with,,a,,divisor,,of,,10000,,,with,,result,,in,,a,,range,,of,,0-9999,,.,,Maybe,,,these,,,were,,,cash,,,orders,,,or,,,just,,,for,,,some,,,reason,,,have,,,no,,,identified,,,customer.,,,everything,,,,ties,,,,to,,,,them,,,,,you,,,,may,,,,still,,,,hit,,,,a,,,,skew,,,,problem,,,,like,,,,above.,,,,Logically,,the,,customer,,skey,,…,,Continue,,reading,,→,,Posted,,in,,Best,,Practices,,,Performance,,Tuning,,for,,Netezza,,,,Tagged,,colocation,,,distributed,,joins,,,modeling,,,netezza,,,Performance,,Tuning,,,,3,,Comments,,.,,You,,,can,,,see,,,this,,,id,,,by,,,querying,,,the,,,column,,,createxid,,,.,,,Im,,,currently,,,working,,,on,,,some,,,ways,,,to,,,spread,,,the,,,unknowns,,,sort,,,of,,,virtually,,,without,,,having,,,9999,,,extra,,,records,,,in,,,the,,,customer,,,table,,,,but,,,I,,,havent,,,completed,,,the,,,testing,,,on,,,that,,,yet.,,,Hopefully,,,Ill,,,have,,,more,,,in,,,the,,,future.,,,An,,example,,sql,,might,,be,,select,,count(distinct,,customerid),,from,,purchasetransaction,,For,,argument,,well,,say,,that,,purchasetransaction,,has,,random,,distribution.,,

Under,,,normal,,,circumstances,,,when,,,you,,,run,,,a,,,select,,,you,,,will,,,not,,,see,,,rows,,,that,,,have,,,a,,,deletexid,,,not,,,equal,,,to,,,zero.,,,In,,this,,example,,,to,,have,,both,,customer,,and,,orders,,distributed,,on,,customerkey,,has,,a,,performance,,boost,,when,,joining,,these,,2,,tables.,,For,,example,,,if,,-1,,is,,the,,standard,,key,,for,,your,,single,,Unknown,,customer,,,you,,may,,need,,to,,have,,10,000,,Unknown,,customer,,records,,and,,have,,the,,keys,,range,,from,,-1,,to,,-10,000.,,This,,,is,,,single,,,redistribution.,,,Lets,,,,say,,,,everything,,,,is,,,,distributed,,,,on,,,,random.,,,,Efficient,,,,Data,,,,Upload,,,,Method,,,,Via,,,,External,,,,Table,,,,Posted,,,,on,,,,July,,,,20,,,,,2012,,,,by,,,,NZGuy,,,,If,,,,you,,,,ever,,,,have,,,,tried,,,,to,,,,upload,,,,data,,,,to,,,,Netezza,,,,using,,,,convention,,,,query,,,,tool,,,,methods,,,,which,,,,create,,,,individual,,,,inserts,,,,,you,,,,will,,,,know,,,,this,,,,can,,,,be,,,,EXTREMELY,,,,SLOW.,,,,If,,,we,,,have,,,customer,,,distributed,,,by,,,customerkey,,,and,,,orders,,,distributed,,,by,,,orders,,,key,,,,then,,,the,,,orders,,,table,,,will,,,need,,,to,,,redistribute,,,by,,,customerkey,,,on,,,the,,,fly,,,,so,,,each,,,snippet,,,processor,,,can,,,have,,,that,,,matching,,,set,,,of,,,customers,,,and,,,orders.,,,There,,,are,,,times,,,you,,,need,,,to,,,just,,,bring,,,back,,,large,,,result,,,sets,,,in,,,a,,,file,,,,local,,,to,,,your,,,client,,,computer.,,,Posted,,in,,Best,,Practices,,,Performance,,Tuning,,for,,Netezza,,,,Tagged,,broadcast,,,colocation,,,distributed,,joins,,,netezza,,,Performance,,Tuning,,,redistribution,,,tuning,,,,Leave,,a,,comment,,.,,

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