从csv部分更新表

Question

我正在运行以下查询：

CREATE TEMPORARY TABLE data LIKE customers;

LOAD DATA INFILE 'D:/iban.csv'
INTO TABLE data
FIELDS TERMINATED BY ','
(customers_id, customers_banktransfer_iban, customers_banktransfer_bic); 

UPDATE data B
INNER JOIN customers A USING (customers_id)
SET A.customers_id = B.customers_id;
SET A.customers_banktransfer_iban = B.customers_banktransfer_iban;
SET A.customers_banktransfer_bic = B.customers_banktransfer_bic;
DROP TEMPORARY TABLE data;

我得到的错误信息是：

#1193 - Unknown system variable 'customers_banktransfer_iban' 

有谁知道问题是什么？

Answer 1

您的更新查询应如下所示：

UPDATE data B
INNER JOIN customers A USING (customers_id)
SET A.customers_id = B.customers_id,
A.customers_banktransfer_iban = B.customers_banktransfer_iban,
A.customers_banktransfer_bic = B.customers_banktransfer_bic;

否则，您正在尝试为尚未声明的变量赋值。