我正在 MYSQL 工作台中编写此代码以检查多个表中的数据，以便在多个表中输入客户和各种客户详细信息而不会重复，并在移动到下一个表之前从每个表中收集变量的主键。我对 INSERT 语句使用了相同的 IF ELSE 语法，该语句可以完美运行，但是由于在开头添加 SELECT 语句以检查视图中的 customerID 并在末尾添加 UPDATE 语句而不是仅 INSERTS 而失败。
它失败并出现错误 1241 操作数应包含 1 列
我试图找到这个问题的答案，发现了很多关于这个错误的问题，但没有一个与这个语法有关。
任何人都可以帮忙吗？代码如下
CREATE DEFINER=`U03qew`@`%` PROCEDURE `sp_modify_customer`(IN CUST_ID INT(11), IN CUST_COUNTRY VARCHAR(50),
IN CUST_NAME VARCHAR(45), IN CUST_ADDRESS VARCHAR(50), IN CUST_ADDRESS2 VARCHAR(50), IN CUST_CITY VARCHAR(50),
IN CUST_ZIP VARCHAR(10), IN CUST_PHONE VARCHAR(20), IN CUR_USER VARCHAR(50))
BEGIN
DECLARE ccountryId VARCHAR(50);
DECLARE ccityId VARCHAR(50);
DECLARE caddressId VARCHAR(50);
IF (SELECT * FROM customer WHERE customerId = CUST_ID) IS NOT NULL THEN
BEGIN
IF (SELECT countryId FROM country WHERE country = CUST_COUNTRY) IS NOT NULL THEN
BEGIN
SELECT countryId FROM country WHERE country = CUST_COUNTRY
INTO ccountryId;
END;
ELSE BEGIN
INSERT INTO country (country, createDate, createdBy, lastUpdate, lastUpdateBy)
VALUES (CUST_COUNTRY, current_date(), CUR_USER, current_timestamp(), CUR_USER);
SELECT countryId FROM country WHERE country = CUST_COUNTRY
INTO ccountryId;
END;
END IF;
IF (SELECT cityId FROM city WHERE city = CUST_CITY AND countryId = ccountryId) IS NOT NULL THEN
BEGIN
SELECT cityId FROM city WHERE city = CUST_CITY AND countryId = ccountryId
INTO ccityId;
END;
ELSE BEGIN
INSERT INTO city (city, countryId, createDate, createdBy, lastUpdate, lastUpdateBy)
VALUES (CUST_CITY, ccountryId, current_date(), CUR_USER, current_timestamp(), CUR_USER);
SELECT cityId FROM city WHERE city = CUST_CITY AND countryId = ccountryId
INTO ccityId;
END;
END IF;
IF (SELECT addressId FROM address WHERE address = CUST_ADDRESS AND address2 = CUST_ADDRESS2 AND phone = CUST_PHONE AND cityId = ccityId) IS NOT NULL THEN
BEGIN
SELECT addressID FROM address WHERE address = CUST_ADDRESS AND address2 = CUST_ADDRESS2 AND phone = CUST_PHONE AND cityId = ccityID
INTO caddressId;
END;
ELSE BEGIN
INSERT INTO address (address, address2, cityId, postalCode, phone, createDate, createdBy, lastUpdate, lastUpdateby)
VALUES (CUST_ADDRESS, CUST_ADDRESS2, ccityId, CUST_ZIP, CUST_PHONE, current_date(), CUR_USER, current_timestamp(), CUR_USER);
SELECT addressId FROM address WHERE address = CUST_ADDRESS AND address2 = CUST_ADDRESS2 AND phone = CUST_PHONE AND cityId = ccityID
INTO caddressId;
END;
END IF;
UPDATE customer
SET customerName = CUST_NAME, addressId = caddressId, active = 1, lastupdate = current_timestamp(), lastUpdateBy = CUR_USER
WHERE customerId = CUST_ID;
END;
ELSE BEGIN
SELECT * FROM customer WHERE customerId = CUST_ID;
END;
END IF;
END
IF (SELECT cityId FROM city WHERE city = CUST_CITY AND countryId = ccountryId) IS NOT NULL THEN
BEGIN SELECT cityId FROM city WHERE city = CUST_CITY AND countryId = ccountryId INTO ccityId;
END;
ELSE BEGIN INSERT INTO city (city, countryId, createDate, createdBy, lastUpdate, lastUpdateBy)
VALUES (CUST_CITY, ccountryId, current_date(), CUR_USER, current_timestamp(), CUR_USER);
SELECT cityId FROM city WHERE city = CUST_CITY AND countryId = ccountryId INTO ccityId;
END;
END IF;
IF (SELECT addressId FROM address WHERE address = CUST_ADDRESS AND address2 = CUST_ADDRESS2 AND phone = CUST_PHONE AND cityId = ccityId) IS NOT NULL THEN
BEGIN SELECT addressID FROM address WHERE address = CUST_ADDRESS AND address2 = CUST_ADDRESS2 AND phone = CUST_PHONE AND cityId = ccityID INTO caddressId;
END;
ELSE
BEGIN INSERT INTO address (address, address2, cityId, postalCode, phone, createDate, createdBy, lastUpdate, lastUpdateby)
VALUES (CUST_ADDRESS, CUST_ADDRESS2, ccityId, CUST_ZIP, CUST_PHONE, current_date(), CUR_USER, current_timestamp(), CUR_USER);
SELECT addressId FROM address WHERE address = CUST_ADDRESS AND address2 = CUST_ADDRESS2 AND phone = CUST_PHONE AND cityId = ccityID INTO caddressId;
END;
END IF;
UPDATE customer
SET customerName = CUST_NAME, addressId = caddressId, active = 1, lastupdate = current_timestamp(), lastUpdateBy = CUR_USER WHERE customerId = CUST_ID;
END;
ELSE
BEGIN
SELECT * FROM customer WHERE customerId = CUST_ID;
END;
END IF;
END