How to Retrieve the Last Inserted ID in MySQL for a Specific Table?

Retrieving Last Inserted ID in MySQL with Specific Table

In MySQL, the mysqli_insert_id() function allows you to retrieve the last inserted ID. However, this function doesn't specify the table, raising concerns about potential data retrieval errors. This issue becomes even more critical when using node.js MySQL.

To address this, we provide a reliable solution that involves specifying the table and minimizing the risk of data inconsistency.

Solution:

The official documentation of mysqljs for node.js (https://github.com/mysqljs/mysql#getting-the-id-of-an-inserted-row) suggests an effective approach:

connection.query('INSERT INTO posts SET ?', {title: 'test'}, function(err, result, fields) {
  if (err) throw err;

  console.log(result.insertId);
});

This solution ensures that the last inserted ID is obtained specifically for the 'posts' table. By providing the table name in the INSERT query, you can eliminate the risk of retrieving an incorrect ID.

By utilizing this approach, you can confidently retrieve the last inserted ID and prevent data integrity issues.

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