如何从select mysql中省略列

Question

我有以下查询：

INSERT INTO kitchen (account_id, ingredient)
    SELECT
        kitchen.account_id,
        ingredients.ingredient,
        kitchen.ingredient,
        count(*) c
    FROM planned_meals
        JOIN meal
        JOIN kitchen
        JOIN ingredients
    WHERE planned_meals.mid = meal.mid
        AND ingredients.rid = meal.recipe_id
        AND ingredients.ingredient != ""
        AND ingredients.ingredient NOT LIKE CONCAT("%",kitchen.ingredient,"%")
    GROUP BY ingredients.ingredient
    HAVING c = (SELECT count(*) FROM kitchen);

当我单独运行选择部分时，我得到：

作为c列的结果，我收到错误，因为它与INSERT INTO函数中的字段数冲突。

如何使select查询省略c列以使INSERT INTO正常工作？我不能使列数相同，因为我需要count列才能使我的HAVING函数工作

Answer 1

插入时，您已定义了2列(account_id, ingredient)，而您提供了4列kitchen.account_id, ingredients.ingredient, kitchen.ingredient, count(*) c。您可以从select中删除不想插入的列

INSERT INTO kitchen (account_id, ingredient) 
SELECT kitchen.account_id, ingredients.ingredient 
 FROM planned_meals JOIN meal JOIN kitchen JOIN ingredients WHERE planned_meals.mid = meal.mid AND ingredients.rid = meal.recipe_id AND ingredients.ingredient != "" AND ingredients.ingredient NOT LIKE CONCAT("%",kitchen.ingredient,"%") 
GROUP BY ingredients.ingredient 
HAVING count(*) = (SELECT count(*) FROM kitchen);