Totaux de rapport
Les informations fournies ici décrivent les moyens d'affecter explicitement la règle d'agrégation pour les totaux de rapport, ce qui contribue à améliorer les performances. De plus, elles sont spécialement destinées aux développeurs techniques qui génèrent des rapports avec Oracle Analytics.
Dans cet exemple, la définition de rapport inclut l'année, le mois et la région client, avec la mesure 'Count Distinct of Customers with Orders', définie comme le nombre distinct de clients avec des commandes.
Requête logique :
SELECT
0 s_0,
"A - Sample Sales"."Cust Regions"."C50 Region" s_1,
"A - Sample Sales"."Counts"."32 # of Cust with Orders (Cnt Distinct)" s_2,
REPORT_AGGREGATE("A - Sample Sales"."Counts"."32 # of Cust with Orders (Cnt Distinct)" BY ) s_3
FROM "A - Sample Sales"
WHERE
("Time"."T02 Per Name Month" = '2011 / 11')
ORDER BY 2 ASC NULLS LAST
FETCH FIRST 500001 ROWS ONLYRequête physique générée :
WITH
SAWITH0 AS (select count(distinct T42433.Cust_Key) as c1,
T42430.Region as c2
from
BISAMPLE.SAMP_CUSTOMERS_D T42428 /* D60 Customers */ ,
BISAMPLE.SAMP_ADDRESSES_D T42430 /* D62 Customers Addresses */ ,
BISAMPLE.SAMP_TIME_MTH_D T42405 /* D02 Time Month Grain */ ,
BISAMPLE.SAMP_REVENUE_F T42433 /* F10 Billed Rev */
where ( T42405.Mth_Key = T42433.Bill_Mth_Key and T42405.Per_Name_Month = '2011 / 11' and T42428.Cust_Key = T42433.Cust_Key and T42428.Address_Key = T42430.Address_Key )
group by T42430.Region),
SAWITH1 AS (select count(distinct T42433.Cust_Key) as c1
from
BISAMPLE.SAMP_TIME_MTH_D T42405 /* D02 Time Month Grain */ ,
BISAMPLE.SAMP_REVENUE_F T42433 /* F10 Billed Rev */
where ( T42405.Per_Name_Month = '2011 / 11' and T42405.Mth_Key = T42433.Bill_Mth_Key ) )
select D1.c1 as c1, D1.c2 as c2, D1.c3 as c3, D1.c4 as c4 from ( select D1.c1 as c1,
D1.c2 as c2,
D1.c3 as c3,
D1.c4 as c4
from
(select 0 as c1,
D1.c2 as c2,
D1.c1 as c3,
D2.c1 as c4,
ROW_NUMBER() OVER (PARTITION BY D1.c2 ORDER BY D1.c2 ASC) as c5
from
SAWITH0 D1,
SAWITH1 D2
) D1
where ( D1.c5 = 1 )
order by c2 ) D1 where rownum <= 500001
La valeur totale, 480, est la somme des valeurs constitutives : 182+113+185. L'expression de requête logique qui calcule le total est la suivante : “REPORT_AGGREGATE("A - Sample Sales"."Counts"."32 # of Cust with Orders (Cnt Distinct)" BY ) s_3”.
Lorsque “REPORT_AGGREGATE” est utilisé, le total est calculé indépendamment des valeurs constitutives. Dans la conception de ce rapport, nous avons toutefois déterminé que le total correct peut être calculé à partir des valeurs constitutives du rapport.
Modifiez la formule de colonne pour remplacer la valeur “Aggregation Rule (Totals Row)” “Server Complex Aggregate” par “Sum”. Vous modifiez ainsi les requêtes SQL logique et physique.
Agrégation d'origine :
Agrégation modifiée :
La requête SQL logique modifiée comporte à présent “REPORT_SUM”.
SELECT
0 s_0,
"A - Sample Sales"."Cust Regions"."C50 Region" s_1,"A - Sample Sales"."Counts"."32 # of Cust with Orders (Cnt Distinct)" s_2,
REPORT_SUM("A - Sample Sales"."Counts"."32 # of Cust with Orders (Cnt Distinct)" BY ) s_3
FROM "A - Sample Sales"
WHERE
("Time"."T02 Per Name Month" = '2011 / 11')
ORDER BY 2 ASC NULLS LAST
FETCH FIRST 500001 ROWS ONLYRequête physique générée :
WITH
SAWITH0 AS (select count(distinct T42433.Cust_Key) as c1,
T42430.Region as c2
from
BISAMPLE.SAMP_CUSTOMERS_D T42428 /* D60 Customers */ ,
BISAMPLE.SAMP_ADDRESSES_D T42430 /* D62 Customers Addresses */ ,
BISAMPLE.SAMP_TIME_MTH_D T42405 /* D02 Time Month Grain */ ,
BISAMPLE.SAMP_REVENUE_F T42433 /* F10 Billed Rev */
where ( T42405.Mth_Key = T42433.Bill_Mth_Key and T42405.Per_Name_Month = '2011 / 11' and T42428.Cust_Key = T42433.Cust_Key and T42428.Address_Key = T42430.Address_Key )
group by T42430.Region),
SAWITH1 AS (select 0 as c1,
D1.c2 as c2,
D1.c1 as c3
from
SAWITH0 D1)
select D1.c1 as c1, D1.c2 as c2, D1.c3 as c3, D1.c4 as c4 from ( select D1.c1 as c1,
D1.c2 as c2,
D1.c3 as c3,
sum(D1.c3) over () as c4
from
SAWITH1 D1
order by c2 ) D1 where rownum <= 500001
La même option servant à définir explicitement l'agrégation est disponible dans les classeurs :
Examinez vos rapports afin de vérifier que la meilleure règle d'agrégation est utilisée pour le rapport. Utilisez une règle d'agrégation explicite lorsque la conception du rapport le permet.
Pour plus d'informations sur les rapports, reportez-vous à Création d'analyses.