将数据从一个MySQL表移动到另一个MySQL表

I am trying to move data from one database (registrations) to another when the user clicks a button named delete. (I want to move the data to a table named archived)

当用户单击名为delete的按钮时，我试图将数据从一个数据库(注册)移动到另一个数据库。(我想将数据移动到一个名为archived的表)

Here is what i have tried (found from Google):

以下是我尝试过的(来自谷歌):

 $result=mysql_query("Insert Into archived (select * from registrations WHERE id=$id") ;
 $row = mysql_fetch_array($result);

This doesn't move it... can anyone help?

这个不动它……谁能帮忙吗?

3 个解决方案

#1

Firstly you're missing one parenthesis, which you don't have to use in this case at all

首先你漏掉了一个括号，在这种情况下你根本不用它

Change your query string to

将查询字符串更改为

Insert Into archived (select * from registrations WHERE id=$id)
                     ^                                        ^

or to just

或者只是

Insert Into archived select * from registrations WHERE id=$id

Here is SQLFiddle demo

这是SQLFiddle演示

Secondly INSERT doesn't return a resultset so you shouldn't use mysql_fetch_array().

其次，INSERT不返回resultset，所以不应该使用mysql_fetch_array()。

Thirdly if your intent was to move not just to copy data then you also need to delete the row that you copied afterwards.

第三，如果您的目的不仅仅是复制数据，那么您还需要删除随后复制的行。

---

Now you can put it all in a stored procedure

现在您可以将其全部放入存储过程中

DELIMITER $$
CREATE PROCEDURE move_to_archive(IN _id INT)
BEGIN
    START TRANSACTION;
    INSERT INTO archived 
    SELECT * 
      FROM registrations 
     WHERE id = _id;
    DELETE
      FROM registrations 
     WHERE id = _id;
    COMMIT;
END$$
DELIMITER ;

Sample usage:

示例用法:

CALL move_to_archive(2);

Here is SQLFiddle demo

这是SQLFiddle演示

#2

The query you are attempting just copies the information from one table to the other. You then have to delete it from the first table:

您正在尝试的查询只是将信息从一个表复制到另一个表。然后必须从第一个表中删除:

INSERT INTO archived 
SELECT * FROM registrations WHERE id = $id;

DELETE FROM registrations WHERE id = $id;

#3

We can do it just by using loop.Here is a example:

我们可以用循环来做。这是一个例子:

<?php
        if (isset($_POST['move'])) {

            $userid = $_POST["user_id"];
            $sql = " INSERT INTO `teachers_archive` SELECT * FROM `teachers` WHERE user_id='$userid'";

            if ($conn->query($sql) === TRUE) {
                $query = "DELETE FROM `teachers` WHERE user_id='$userid' ";
                if ($conn->query($query) === TRUE) {
                    $message = "Success!";
                    echo "<script type='text/javascript'>alert('$message');</script>";
                    echo"<script>document.location='mt.php';</script>";
                } else {
                    echo "Error: " . $query . "<br>" . $conn->error;
                }
            } else {
                echo "Error: " . $sql . "<br>" . $conn->error;
            }
        }
        ?>