mysql - 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，如何将一组行从一个表移动到另一个表？

行集将由选择查询确定。

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';

我想将行从客户表移动到人员表

理想情况下从原始表中删除数据，但这不会破坏交易。

score 136 · Accepted Answer

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';

score 39 · Accepted Answer

    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";

score 32 · Accepted Answer

Fabio 的答案非常好，但是执行时间很长（正如 Trilarion 已经写的那样）

我有另一个执行速度更快的解决方案。

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，以确保没有人打扰

score 6 · Accepted Answer

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。

score 5 · Accepted Answer

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

score 1 · Accepted Answer

我必须解决同样的问题，这就是我用作解决方案的方法。

要使用此解决方案，源表和目标表必须相同，并且必须在第一个表中具有唯一的 id 和自动增量（以便永远不会重复使用相同的 id）。

假设 table1 和 table2 有这个结构

|id|field1|field2

您可以进行这两个查询：

INSERT INTO table2 SELECT * FROM table1 WHERE

DELETE FROM table1 WHERE table1.id in (SELECT table2.id FROM table2)

score 1 · Accepted Answer

要通过使用 WHERE 查询选择来移动和删除特定记录，

BEGIN TRANSACTION;
Insert Into A SELECT * FROM B where URL="" AND email ="" AND Annual_Sales_Vol="" And OPENED_In="" AND emp_count=""  And contact_person= "" limit 0,2000;
delete from B where Id In (select Id from B where URL="" AND email ="" AND Annual_Sales_Vol="" And OPENED_In="" AND emp_count="" And contact_person= "" limit 0,2000);
commit;

mysql - mysql - 将行从一个表移动到另一个表

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