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Sql takes out multiple values of a field and adds them together.
Choice? Order number? As? What is the bill number and amount (price)? Amount? from

(choose? A. Order number, B. Price? From where? Order? Answer? Left? Join? Recipes? b

Open? ','? +? A. order number? +? ','? Like what? '%,'? +? B.what's the dish number+? ',%')? c？ Group? By who? Order number

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