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請列出所有客戶的名稱和電子郵件。
CREATE TABLE customer ( id VARCHAR(50) NOT NULL, name TEXT, email TEXT, PRIMARY KEY (id) ) COLLATE utf8mb4_0900_ai_ci DEFAULT CHARSET=utf8mb4 ENGINE=InnoDB; /* 3 rows from customer table: id name email c1 annie annie123@gmail.com c2 jack jacklee@gmail.com c3 bob bob456@gmail.com */ CREATE T...
SELECT name, email FROM customer;
請找出所有已訂購過商品的客戶名字。
CREATE TABLE customer ( id VARCHAR(50) NOT NULL, name TEXT, email TEXT, PRIMARY KEY (id) ) COLLATE utf8mb4_0900_ai_ci DEFAULT CHARSET=utf8mb4 ENGINE=InnoDB; /* 3 rows from customer table: id name email c1 annie annie123@gmail.com c2 jack jacklee@gmail.com c3 bob bob456@gmail.com */ CREATE T...
SELECT DISTINCT c.name FROM customer c LEFT JOIN orders o ON c.id = o.customer_id WHERE o.id IS NOT NULL;
請列出所有客戶,包括沒有購買過商品的客戶。
CREATE TABLE customer ( id VARCHAR(50) NOT NULL, name TEXT, email TEXT, PRIMARY KEY (id) ) COLLATE utf8mb4_0900_ai_ci DEFAULT CHARSET=utf8mb4 ENGINE=InnoDB; /* 3 rows from customer table: id name email c1 annie annie123@gmail.com c2 jack jacklee@gmail.com c3 bob bob456@gmail.com */ CREATE T...
SELECT c.name, c.email FROM customer c LEFT JOIN orders o ON c.id = o.customer_id;
請列出每位客戶購買過哪些商品及其總金額。
CREATE TABLE customer ( id VARCHAR(50) NOT NULL, name TEXT, email TEXT, PRIMARY KEY (id) ) COLLATE utf8mb4_0900_ai_ci DEFAULT CHARSET=utf8mb4 ENGINE=InnoDB; /* 3 rows from customer table: id name email c1 annie annie123@gmail.com c2 jack jacklee@gmail.com c3 bob bob456@gmail.com */ CREATE T...
SELECT c.name, o.product, SUM(o.amount) AS total_amount FROM customer c LEFT JOIN orders o ON c.id = o.customer_id GROUP BY c.name, o.product;
請列出所有訂單及其相對應客戶的名稱。
CREATE TABLE customer ( id VARCHAR(50) NOT NULL, name TEXT, email TEXT, PRIMARY KEY (id) ) COLLATE utf8mb4_0900_ai_ci DEFAULT CHARSET=utf8mb4 ENGINE=InnoDB; /* 3 rows from customer table: id name email c1 annie annie123@gmail.com c2 jack jacklee@gmail.com c3 bob bob456@gmail.com */ CREATE T...
SELECT o.id, c.name FROM orders o LEFT JOIN customer c ON o.customer_id = c.id;
請列出所有沒有訂購過任何商品的客戶。
CREATE TABLE customer ( id VARCHAR(50) NOT NULL, name TEXT, email TEXT, PRIMARY KEY (id) ) COLLATE utf8mb4_0900_ai_ci DEFAULT CHARSET=utf8mb4 ENGINE=InnoDB; /* 3 rows from customer table: id name email c1 annie annie123@gmail.com c2 jack jacklee@gmail.com c3 bob bob456@gmail.com */ CREATE T...
SELECT c.name, c.email FROM customer c LEFT JOIN orders o ON c.id = o.customer_id WHERE o.id IS NULL;
請列出所有已購買過 'apple' 的客戶名字。
CREATE TABLE customer ( id VARCHAR(50) NOT NULL, name TEXT, email TEXT, PRIMARY KEY (id) ) COLLATE utf8mb4_0900_ai_ci DEFAULT CHARSET=utf8mb4 ENGINE=InnoDB; /* 3 rows from customer table: id name email c1 annie annie123@gmail.com c2 jack jacklee@gmail.com c3 bob bob456@gmail.com */ CREATE T...
SELECT DISTINCT c.name FROM customer c LEFT JOIN orders o ON c.id = o.customer_id WHERE o.product = 'apple';
請列出所有客戶的名稱及其訂購總金額。
CREATE TABLE customer ( id VARCHAR(50) NOT NULL, name TEXT, email TEXT, PRIMARY KEY (id) ) COLLATE utf8mb4_0900_ai_ci DEFAULT CHARSET=utf8mb4 ENGINE=InnoDB; /* 3 rows from customer table: id name email c1 annie annie123@gmail.com c2 jack jacklee@gmail.com c3 bob bob456@gmail.com */ CREATE T...
SELECT c.name, COALESCE(SUM(o.amount), 0) AS total_spent FROM customer c LEFT JOIN orders o ON c.id = o.customer_id GROUP BY c.name;
請找出在 '2025/2/4' 訂購的商品及其客戶名字。
CREATE TABLE customer ( id VARCHAR(50) NOT NULL, name TEXT, email TEXT, PRIMARY KEY (id) ) COLLATE utf8mb4_0900_ai_ci DEFAULT CHARSET=utf8mb4 ENGINE=InnoDB; /* 3 rows from customer table: id name email c1 annie annie123@gmail.com c2 jack jacklee@gmail.com c3 bob bob456@gmail.com */ CREATE T...
SELECT c.name, o.product FROM orders o LEFT JOIN customer c ON o.customer_id = c.id WHERE o.order_date = '2025/2/4';
請列出購買過的所有商品及其總數量。
CREATE TABLE customer ( id VARCHAR(50) NOT NULL, name TEXT, email TEXT, PRIMARY KEY (id) ) COLLATE utf8mb4_0900_ai_ci DEFAULT CHARSET=utf8mb4 ENGINE=InnoDB; /* 3 rows from customer table: id name email c1 annie annie123@gmail.com c2 jack jacklee@gmail.com c3 bob bob456@gmail.com */ CREATE T...
SELECT product, SUM(amount) AS total_amount FROM orders GROUP BY product;
請列出每位客戶在特定日期(如 '2025/2/3')的總購買金額。
CREATE TABLE customer ( id VARCHAR(50) NOT NULL, name TEXT, email TEXT, PRIMARY KEY (id) ) COLLATE utf8mb4_0900_ai_ci DEFAULT CHARSET=utf8mb4 ENGINE=InnoDB; /* 3 rows from customer table: id name email c1 annie annie123@gmail.com c2 jack jacklee@gmail.com c3 bob bob456@gmail.com */ CREATE T...
SELECT c.name, SUM(o.amount) AS total_spent FROM customer c LEFT JOIN orders o ON c.id = o.customer_id WHERE o.order_date = '2025/2/3' GROUP BY c.name;
請列出所有客戶及其購買的商品數量,如果沒有購買則顯示為 0。
CREATE TABLE customer ( id VARCHAR(50) NOT NULL, name TEXT, email TEXT, PRIMARY KEY (id) ) COLLATE utf8mb4_0900_ai_ci DEFAULT CHARSET=utf8mb4 ENGINE=InnoDB; /* 3 rows from customer table: id name email c1 annie annie123@gmail.com c2 jack jacklee@gmail.com c3 bob bob456@gmail.com */ CREATE T...
SELECT c.name, COUNT(o.product) AS product_count FROM customer c LEFT JOIN orders o ON c.id = o.customer_id GROUP BY c.name;
請列出所有商品及其購買次數,只包含至少被購買一次的商品。
CREATE TABLE customer ( id VARCHAR(50) NOT NULL, name TEXT, email TEXT, PRIMARY KEY (id) ) COLLATE utf8mb4_0900_ai_ci DEFAULT CHARSET=utf8mb4 ENGINE=InnoDB; /* 3 rows from customer table: id name email c1 annie annie123@gmail.com c2 jack jacklee@gmail.com c3 bob bob456@gmail.com */ CREATE T...
SELECT product, COUNT(*) AS purchase_count FROM orders GROUP BY product HAVING COUNT(*) > 0;
請列出所有客戶及其訂購金額超過 200 的記錄。
CREATE TABLE customer ( id VARCHAR(50) NOT NULL, name TEXT, email TEXT, PRIMARY KEY (id) ) COLLATE utf8mb4_0900_ai_ci DEFAULT CHARSET=utf8mb4 ENGINE=InnoDB; /* 3 rows from customer table: id name email c1 annie annie123@gmail.com c2 jack jacklee@gmail.com c3 bob bob456@gmail.com */ CREATE T...
SELECT c.name, o.product, o.amount FROM customer c LEFT JOIN orders o ON c.id = o.customer_id WHERE o.amount > 200;
請找出所有購買過 'pen' 的客戶名字。
CREATE TABLE customer ( id VARCHAR(50) NOT NULL, name TEXT, email TEXT, PRIMARY KEY (id) ) COLLATE utf8mb4_0900_ai_ci DEFAULT CHARSET=utf8mb4 ENGINE=InnoDB; /* 3 rows from customer table: id name email c1 annie annie123@gmail.com c2 jack jacklee@gmail.com c3 bob bob456@gmail.com */ CREATE T...
SELECT DISTINCT c.name FROM customer c LEFT JOIN orders o ON c.id = o.customer_id WHERE o.product = 'pen';
請列出所有訂單及其客戶的電子郵件。
CREATE TABLE customer ( id VARCHAR(50) NOT NULL, name TEXT, email TEXT, PRIMARY KEY (id) ) COLLATE utf8mb4_0900_ai_ci DEFAULT CHARSET=utf8mb4 ENGINE=InnoDB; /* 3 rows from customer table: id name email c1 annie annie123@gmail.com c2 jack jacklee@gmail.com c3 bob bob456@gmail.com */ CREATE T...
SELECT o.id, c.email FROM orders o LEFT JOIN customer c ON o.customer_id = c.id;
請列出所有訂購金額超過 250 的客戶名字及其訂單詳情。
CREATE TABLE customer ( id VARCHAR(50) NOT NULL, name TEXT, email TEXT, PRIMARY KEY (id) ) COLLATE utf8mb4_0900_ai_ci DEFAULT CHARSET=utf8mb4 ENGINE=InnoDB; /* 3 rows from customer table: id name email c1 annie annie123@gmail.com c2 jack jacklee@gmail.com c3 bob bob456@gmail.com */ CREATE T...
SELECT DISTINCT c.name, o.product FROM customer c LEFT JOIN orders o ON c.id = o.customer_id WHERE o.amount > 250;
請找出沒有購買 'apple' 的客戶名字。
CREATE TABLE customer ( id VARCHAR(50) NOT NULL, name TEXT, email TEXT, PRIMARY KEY (id) ) COLLATE utf8mb4_0900_ai_ci DEFAULT CHARSET=utf8mb4 ENGINE=InnoDB; /* 3 rows from customer table: id name email c1 annie annie123@gmail.com c2 jack jacklee@gmail.com c3 bob bob456@gmail.com */ CREATE T...
SELECT DISTINCT c.name FROM customer c LEFT JOIN orders o ON c.id = o.customer_id WHERE o.product != 'apple' OR o.product IS NULL;
請列出所有客戶及其購買的商品名稱,以及每個商品的總金額。
CREATE TABLE customer ( id VARCHAR(50) NOT NULL, name TEXT, email TEXT, PRIMARY KEY (id) ) COLLATE utf8mb4_0900_ai_ci DEFAULT CHARSET=utf8mb4 ENGINE=InnoDB; /* 3 rows from customer table: id name email c1 annie annie123@gmail.com c2 jack jacklee@gmail.com c3 bob bob456@gmail.com */ CREATE T...
SELECT c.name, o.product, COALESCE(SUM(o.amount), 0) AS total_amount FROM customer c LEFT JOIN orders o ON c.id = o.customer_id GROUP BY c.name, o.product;
請找出所有客戶的名字,並按照他們的總購買金額進行排序。
CREATE TABLE customer ( id VARCHAR(50) NOT NULL, name TEXT, email TEXT, PRIMARY KEY (id) ) COLLATE utf8mb4_0900_ai_ci DEFAULT CHARSET=utf8mb4 ENGINE=InnoDB; /* 3 rows from customer table: id name email c1 annie annie123@gmail.com c2 jack jacklee@gmail.com c3 bob bob456@gmail.com */ CREATE T...
SELECT c.name, COALESCE(SUM(o.amount), 0) AS total_spent FROM customer c LEFT JOIN orders o ON c.id = o.customer_id GROUP BY c.name ORDER BY total_spent DESC;
請列出所有客戶及其購買 'apple' 的次數。
CREATE TABLE customer ( id VARCHAR(50) NOT NULL, name TEXT, email TEXT, PRIMARY KEY (id) ) COLLATE utf8mb4_0900_ai_ci DEFAULT CHARSET=utf8mb4 ENGINE=InnoDB; /* 3 rows from customer table: id name email c1 annie annie123@gmail.com c2 jack jacklee@gmail.com c3 bob bob456@gmail.com */ CREATE T...
SELECT c.name, COUNT(o.product) AS apple_count FROM customer c LEFT JOIN orders o ON c.id = o.customer_id WHERE o.product = 'apple' GROUP BY c.name;
請列出所有客戶的名字及其購買商品的總數。
CREATE TABLE customer ( id VARCHAR(50) NOT NULL, name TEXT, email TEXT, PRIMARY KEY (id) ) COLLATE utf8mb4_0900_ai_ci DEFAULT CHARSET=utf8mb4 ENGINE=InnoDB; /* 3 rows from customer table: id name email c1 annie annie123@gmail.com c2 jack jacklee@gmail.com c3 bob bob456@gmail.com */ CREATE T...
SELECT c.name, COUNT(o.id) AS total_orders FROM customer c LEFT JOIN orders o ON c.id = o.customer_id GROUP BY c.name;
請找出所有訂單的商品及其購買客戶名字。
CREATE TABLE customer ( id VARCHAR(50) NOT NULL, name TEXT, email TEXT, PRIMARY KEY (id) ) COLLATE utf8mb4_0900_ai_ci DEFAULT CHARSET=utf8mb4 ENGINE=InnoDB; /* 3 rows from customer table: id name email c1 annie annie123@gmail.com c2 jack jacklee@gmail.com c3 bob bob456@gmail.com */ CREATE T...
SELECT DISTINCT o.product, c.name FROM orders o LEFT JOIN customer c ON o.customer_id = c.id;
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