mysql - 将行从一个表移动到另一个表

Question

如果我有两个结构相同的表,我如何将一组行从一个表移动到另一个表？

将从选择查询确定行集.

例如:

customer table

person_id | person_name | person_email
123         tom           tom@example.com


persons table

person_id | person_name  | person_email

样本选择将是:

select * from customer_table where person_name = 'tom';

我想将行从customer表移到person表

理想情况下从原始表中删除数据,但这不是一个交易破坏者.

Answer 1

一个简单的INSERT INTO SELECT语句:

INSERT INTO persons_table SELECT * FROM customer_table WHERE person_name = 'tom';

DELETE FROM customer_table WHERE person_name = 'tom';

Answer 2

    INSERT INTO Persons_Table (person_id, person_name,person_email)
          SELECT person_id, customer_name, customer_email
          FROM customer_table
          WHERE "insert your where clause here";
    DELETE FROM customer_table
          WHERE "repeat your where clause here";

Answer 3

Fabio的答案非常好,但需要很长的执行时间(正如Trilarion已写的那样)

我有一个更快执行的其他解决方案.

START TRANSACTION;
set @N := (now());
INSERT INTO table2 select * from table1 where ts < date_sub(@N,INTERVAL 32 DAY);
DELETE FROM table1 WHERE ts < date_sub(@N,INTERVAL 32 DAY);
COMMIT;

@N在开始时获取时间戳,并用于两个命令.一切都在交易中以确保没有人感到不安

Answer 4

INSERT INTO Persons_Table (person_id, person_name,person_email)
      SELECT person_id, customer_name, customer_email
      FROM customer_table
      ORDER BY `person_id` DESC LIMIT 0, 15 
      WHERE "insert your where clause here";
DELETE FROM customer_table
      WHERE "repeat your where clause here";

您还可以使用 ORDER BY、LIMIT 和 ASC/DESC 来限制和选择要移动的特定列。

Answer 5

BEGIN;
INSERT INTO persons_table select * from customer_table where person_name = 'tom';
DELETE FROM customer_table where person_name = 'tom';
COMMIT;