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28 lines
533 B
28 lines
533 B
-- Query 24
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SELECT
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consommation.numcons,
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consommation.libcons,
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(
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SELECT COUNT(comprend.numfacture)
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FROM comprend
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WHERE comprend.numcons = consommation.numcons
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) AS `nb factures`
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FROM consommation
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HAVING `nb factures` >= 2;
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/* == RESULT ==
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"NUMCONS","LIBCONS","Nb factures"
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100,"Café",10
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101,"Café double",13
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102,"Café crème",11
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105,"Chocolat",5
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106,"Bière pression",6
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107,"Bière 25 Cl",5
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108,"Bière 33 Cl",13
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110,"Bière 50 Cl",3
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122,"Perrier",7
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124,"Orangina",8
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130,"Coca Cola",6
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*/
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