connot perform an aggregate function ... with GROUP BY - sql

Question

Hello i'm trying to write a query which consists to calculate the sum of 2 values, the second sum is result of multiplication between the first value and another. could someone help to solve this please ?? ( excuse me for my english, im frensh developer ) :
SELECT ISNULL(CONVERT(VARCHAR,CONVERT(date,MARE_DAT_CRE,103)),'Total') AS Dat
, SUM (MARE_CAUTIONNEMENT) AS HT
, SUM ( MARE_CAUTIONNEMENT * ( SELECT DISTINCT LCF_TAUXTVA
FROM F_LIGNECOMFOU
INNER JOIN F_AFFAIRES ON LCF_CODE_AFF = AF_CODE_AFFAIRE
INNER JOIN F_LOT ON LT_AFFAIRE = AF_CODE_AFFAIRE
INNER JOIN F_COMMANDEFOU ON CF_NUMERO = LCF_CF_NUMERO
INNER JOIN F_P_FOURNISSEUR ON CF_IDENT_FO = FOU_IDENT
WHERE AF_CODE_AFFAIRE = '15065-00' AND LT_IDENT = 500002200 AND FOU_IDENT = 500000838 ) ) FROM F_AVENANT_RETENUE INNER JOIN F_MARCHE_AVENANT ON MAAV_IDENT = MARE_MAAV_IDENT INNER JOIN F_MARCHE_TRAVAUX ON MATR_IDENT = MAAV_MATR_IDENT INNER JOIN F_AFFAIRES ON AF_CODE_AFFAIRE = MATR_AF_IDENT INNER JOIN F_LOT ON LT_AFFAIRE = AF_CODE_AFFAIRE INNER JOIN F_AVENANT_COTATION ON AVCO_IDENT = MARE_AVCO_IDENT WHERE AF_CODE_AFFAIRE = '15065-00' AND LT_IDENT = 500002200 AND MATR_FOU_IDENT = 500000838 AND MARE_CAUTIONNEMENT IS NOT NULL
GROUP BY MARE_DAT_CRE WITH ROLLUP

Answer 1

You could try sticking that sub select in your joins. Now you haven't used table alias so I'm not sure which tables contain the fields AF_CODE_AFFAIRE, LT_IDENT and MATR_FOU_IDENT so you'll have to add table aliases;
SELECT ISNULL(CONVERT(VARCHAR, CONVERT(DATE, MARE_DAT_CRE, 103)), 'Total') AS Dat
,SUM(MARE_CAUTIONNEMENT) AS HT
,SUM(MARE_CAUTIONNEMENT) * SUM(new.LCF_TAUXTVA)
FROM F_AVENANT_RETENUE
INNER JOIN F_MARCHE_AVENANT ON MAAV_IDENT = MARE_MAAV_IDENT
INNER JOIN F_MARCHE_TRAVAUX ON MATR_IDENT = MAAV_MATR_IDENT
INNER JOIN F_AFFAIRES ON AF_CODE_AFFAIRE = MATR_AF_IDENT
INNER JOIN F_LOT ON LT_AFFAIRE = AF_CODE_AFFAIRE
INNER JOIN F_AVENANT_COTATION ON AVCO_IDENT = MARE_AVCO_IDENT
LEFT JOIN (
SELECT DISTINCT LCF_TAUXTVA
FROM F_LIGNECOMFOU
INNER JOIN F_AFFAIRES ON LCF_CODE_AFF = AF_CODE_AFFAIRE
INNER JOIN F_LOT ON LT_AFFAIRE = AF_CODE_AFFAIRE
INNER JOIN F_COMMANDEFOU ON CF_NUMERO = LCF_CF_NUMERO
INNER JOIN F_P_FOURNISSEUR ON CF_IDENT_FO = FOU_IDENT
) new ON AF_CODE_AFFAIRE = new.AF_CODE_AFFAIRE
AND LT_IDENT = new.LT_IDENT
AND MATR_FOU_IDENT = new.MATR_FOU_IDENT
WHERE AF_CODE_AFFAIRE = '15065-00'
AND LT_IDENT = 500002200
AND MATR_FOU_IDENT = 500000838
AND MARE_CAUTIONNEMENT IS NOT NULL
GROUP BY ISNULL(CONVERT(VARCHAR, CONVERT(DATE, MARE_DAT_CRE, 103)), 'Total')
WITH ROLLUP