1366 (HY000)：十进制值不正确：第 1 行的“价格”列“8.99”答案

【问题标题】：1366 (HY000): Incorrect decimal value: ''8.99'' for column 'price' at row 11366 (HY000)：十进制值不正确：第 1 行的“价格”列“8.99”
【发布时间】：2021-08-05 15:53:32
【问题描述】：

create_query = '''CREATE TABLE Sales(
order_num VARCHAR(255) NOT NULL,
order_type VARCHAR(255) NOT NULL,
cust_name VARCHAR(255) NOT NULL,
cust_state VARCHAR(255) NOT NULL,
prod_category VARCHAR(255) NOT NULL,
prod_number VARCHAR(255) NOT NULL,
prod_name VARCHAR(255) NOT NULL,
quantity INT(255) NOT NULL,
price DEC(65) NOT NULL,
discount DEC(65) NOT NULL,
order_total DEC(65) NOT NULL,
PRIMARY KEY (order_num))'''

cursor.execute("DROP TABLE IF EXISTS Sales")

cursor.execute(create_query)

with open('./red30.csv', 'r') as f:
    csv_data = csv.reader(f)
    for row in csv_data:
        row_tuple = tuple(row)
        cursor.execute('INSERT INTO Sales(order_num,order_type, cust_name, cust_state, prod_category, prod_number, prod_name, quantity, price, discount, order_total) VALUES("%s","%s", "%s", "%s", "%s", "%s", "%s", "%s", "%s", "%s", "%s")', row_tuple)

【问题讨论】：

标签： python mysql csv

【解决方案1】：

你的列price必须允许小数位：

price DEC(65, 2) NOT NULL,

见https://dev.mysql.com/doc/refman/8.0/en/precision-math-decimal-characteristics.html

【讨论】：

另外 65 位的精度可能是过高的，除非你预计通货膨胀会增加很多！