50 lines
1.3 KiB
MySQL
50 lines
1.3 KiB
MySQL
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-- Q1
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select B.numbuveur, nom, ville
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from buveur B, Commande C
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where B.numbuveur = C.numbuveur;
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select distinct B.numbuveur, nom, ville
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from buveur B, Commande C
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where B.numbuveur = C.numbuveur;
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select distinct numbuveur, nom, ville
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from buveur natural join Commande ;
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select distinct numbuveur, nom, ville
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from buveur join Commande using(numbuveur) ;
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select distinct b.numbuveur, nom, ville
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from buveur b join Commande c on (b.numbuveur=c.numbuveur);
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-- Q2
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select distinct numvitic, nom, prenom
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from viticulteur natural join vin
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where region = 'LOIRE' and millesime = 1983;
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-- Q3
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select distinct B.numbuveur, nom
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from buveur b, commande c, vin v
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where b.numbuveur = c.numbuveur and c.numvin=v.numvin and cru = 'POMMARD' ;
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select distinct numbuveur, nom
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from buveur natural join commande natural join vin
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where cru = 'POMMARD';
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-- Q4
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select distinct nom
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from vin v, commande c, viticulteur t
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where c.numvin = v.numvin and v.numvitic = t.numvitic and numbuveur = 1600;
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select distinct nom
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from commande natural join vin natural join viticulteur
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where numbuveur = 1600;
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select distinct nom
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from viticulteur
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where numvitic in (select numvitic
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from vin
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where numvin in (select numvin
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from commande
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where numbuveur = 1600));
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