mysql 程序 : Result consisted of more than one row with select statement

Question

我正在为我的常规重复工作创建一个程序。

其中，有一个步骤可以将一个表中的多行插入到临时表中。

CREATE TABLE `tmpUserList` (
      `id` int(11) NOT NULL AUTO_INCREMENT,
      `user_type` varchar(45) COLLATE utf8_unicode_ci NOT NULL,
      `first_name` varchar(45) COLLATE utf8_unicode_ci NOT NULL,
      `last_name` varchar(45) COLLATE utf8_unicode_ci NOT NULL
      PRIMARY KEY (`id`)
    ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;

    ..... some more queries.


        INSERT INTO  tmpUserList ( 
                SELECT  id, user_type,first_name,last_name,  from user  where  id in  (usersId) 
        );


    SELECT * FROM tmpUserList; // return the result

但它给我错误:Result consisted of more than one row

Answer 1

正确的 INSERT SELECT 语法:

INSERT INTO tmpUserList(id, user_type,first_name,last_name)
SELECT id, user_type,first_name,last_name 
FROM user  
WHERE id IN (usersId);

如果 usersId 包含多个值，您可以使用:

WHERE FIND_IN_SET(id, usersId);  -- table scan

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